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Ouologuem L, Bartel K. Endolysosomal transient receptor potential mucolipins and two-pore channels: implications for cancer immunity. Front Immunol 2024; 15:1389194. [PMID: 38840905 PMCID: PMC11150529 DOI: 10.3389/fimmu.2024.1389194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/09/2024] [Indexed: 06/07/2024] Open
Abstract
Past research has identified that cancer cells sustain several cancer hallmarks by impairing function of the endolysosomal system (ES). Thus, maintaining the functional integrity of endolysosomes is crucial, which heavily relies on two key protein families: soluble hydrolases and endolysosomal membrane proteins. Particularly members of the TPC (two-pore channel) and TRPML (transient receptor potential mucolipins) families have emerged as essential regulators of ES function as a potential target in cancer therapy. Targeting TPCs and TRPMLs has demonstrated significant impact on multiple cancer hallmarks, including proliferation, growth, migration, and angiogenesis both in vitro and in vivo. Notably, endosomes and lysosomes also actively participate in various immune regulatory mechanisms, such as phagocytosis, antigen presentation, and the release of proinflammatory mediators. Yet, knowledge about the role of TPCs and TRPMLs in immunity is scarce. This prompts a discussion regarding the potential role of endolysosomal ion channels in aiding cancers to evade immune surveillance and destruction. Specifically, understanding the interplay between endolysosomal ion channels and cancer immunity becomes crucial. Our review aims to comprehensively explore the current knowledge surrounding the roles of TPCs and TRPMLs in immunity, whilst emphasizing the critical need to elucidate their specific contributions to cancer immunity by pointing out current research gaps that should be addressed.
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Affiliation(s)
| | - Karin Bartel
- Department of Pharmacy, Drug Delivery, Ludwig-Maximilians-University Munich, Munich, Germany
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2
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Zou YX, Xiang TN, Xu LR, Zhang H, Ma YH, Zhang L, Zhou CX, Wu X, Huang QL, Lei B, Mu JW, Qin XY, Jiang X, Zheng YJ. Dehydrozaluzanin C- derivative protects septic mice by alleviating over-activated inflammatory response and promoting the phagocytosis of macrophages. Int Immunopharmacol 2024; 132:111889. [PMID: 38531202 DOI: 10.1016/j.intimp.2024.111889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/04/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024]
Abstract
Host-directed therapy (HDT) is a new adjuvant strategy that interfere with host cell factors that are required by a pathogen for replication or persistence. In this study, we assessed the effect of dehydrozaluzanin C-derivative (DHZD), a modified compound from dehydrozaluzanin C (DHZC), as a potential HDT agent for severe infection. LPS-induced septic mouse model and Carbapenem resistant Klebsiella pneumoniae (CRKP) infection mouse model was used for testing in vivo. RAW264.7 cells, mouse primary macrophages, and DCs were used for in vitro experiments. Dexamethasone (DXM) was used as a positive control agent. DHZD ameliorated tissue damage (lung, kidney, and liver) and excessive inflammatory response induced by LPS or CRKP infection in mice. Also, DHZD improved the hypothermic symptoms of acute peritonitis induced by CRKP, inhibited heat-killed CRKP (HK-CRKP)-induced inflammatory response in macrophages, and upregulated the proportions of phagocytic cell types in lungs. In vitro data suggested that DHZD decreases LPS-stimulated expression of IL-6, TNF-α and MCP-1 via PI3K/Akt/p70S6K signaling pathway in macrophages. Interestingly, the combined treatment group of DXM and DHZD had a higher survival rate and lower level of IL-6 than those of the DXM-treated group; the combination of DHZD and DXM played a synergistic role in decreasing IL-6 secretion in sera. Moreover, the phagocytic receptor CD36 was increased by DHZD in macrophages, which was accompanied by increased bacterial phagocytosis in a clathrin- and actin-dependent manner. This data suggests that DHZD may be a potential drug candidate for treating bacterial infections.
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Affiliation(s)
- Ying-Xiang Zou
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tian-Nan Xiang
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Department of Chinese Medicine, Hubei College of Chinese Medicine, Jingzhou, Hubei, 434020, China
| | - Li-Rong Xu
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Huan Zhang
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yu-He Ma
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Lu Zhang
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chun-Xian Zhou
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiao Wu
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Qi-Lin Huang
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Biao Lei
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jing-Wen Mu
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiang-Yang Qin
- Department of Chemistry, school of pharmacy, Fourth Military University, Xi'an, Shaanxi 710032, China.
| | - Xin Jiang
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Yue-Juan Zheng
- The Research Center for Traditional Chinese Medicine, Shanghai Institute of Infectious Diseases and Biosecurity, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Shanghai Key Laboratory of Health Identification and Assessment, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Guo Q, Zhou Y, Xie T, Yuan Y, Li H, Shi W, Zheng L, Li X, Zhang W. Tumor microenvironment of cancer stem cells: Perspectives on cancer stem cell targeting. Genes Dis 2024; 11:101043. [PMID: 38292177 PMCID: PMC10825311 DOI: 10.1016/j.gendis.2023.05.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 05/25/2023] [Indexed: 02/01/2024] Open
Abstract
There are few tumor cell subpopulations with stem cell characteristics in tumor tissue, defined as cancer stem cells (CSCs) or cancer stem-like cells (CSLCs), which can reconstruct neoplasms with malignant biological behaviors such as invasiveness via self-renewal and unlimited generation. The microenvironment that CSCs depend on consists of various cellular components and corresponding medium components. Among these factors existing at a variety of levels and forms, cytokine networks and numerous signal pathways play an important role in signaling transduction. These factors promote or maintain cancer cell stemness, and participate in cancer recurrence, metastasis, and resistance. This review aims to summarize the recent molecular data concerning the multilayered relationship between CSCs and CSC-favorable microenvironments. We also discuss the therapeutic implications of targeting this synergistic interplay, hoping to give an insight into targeting cancer cell stemness for tumor therapy and prognosis.
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Affiliation(s)
- Qianqian Guo
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, Henan 450003, China
| | - Yi Zhou
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Tianyuan Xie
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Yin Yuan
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Huilong Li
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Wanjin Shi
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Lufeng Zheng
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Xiaoman Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Wenzhou Zhang
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, Henan 450003, China
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Mousa M, Liang Y, Tung LT, Wang H, Krawczyk C, Langlais D, Nijnik A. Chromatin-binding deubiquitinase MYSM1 acts in haematopoietic progenitors to control dendritic cell development and to program dendritic cell responses to microbial stimulation. Immunology 2024; 172:109-126. [PMID: 38316548 DOI: 10.1111/imm.13758] [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: 07/23/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Dendritic cells (DCs) are the most significant antigen presenting cells of the immune system, critical for the activation of naïve T cells. The pathways controlling DC development, maturation, and effector function therefore require precise regulation to allow for an effective induction of adaptive immune response. MYSM1 is a chromatin binding deubiquitinase (DUB) and an activator of gene expression via its catalytic activity for monoubiquitinated histone H2A (H2A-K119ub), which is a highly abundant repressive epigenetic mark. MYSM1 is an important regulator of haematopoiesis in mouse and human, and a systemic constitutive loss of Mysm1 in mice results in a depletion of many haematopoietic progenitors, including DC precursors, with the downstream loss of most DC lineage cells. However, the roles of MYSM1 at the later checkpoints in DC development, maturation, activation, and effector function at present remain unknown. In the current work, using a range of novel mouse models (Mysm1flCreERT2, Mysm1flCD11c-cre, Mysm1DN), we further the understanding of MYSM1 functions in the DC lineage: assessing the requirement for MYSM1 in DC development independently of other complex developmental phenotypes, exploring its role at the later checkpoints in DC maintenance and activation in response to microbial stimulation, and testing the requirement for the DUB catalytic activity of MYSM1 in these processes. Surprisingly, we demonstrate that MYSM1 expression and catalytic activity in DCs are dispensable for the maintenance of DC numbers in vivo or for DC activation in response to microbial stimulation. In contrast, MYSM1 acts via its DUB catalytic activity specifically in haematopoietic progenitors to allow normal DC lineage development, and its loss results not only in a severe DC depletion but also in the production of functionally altered DCs, with a dysregulation of many housekeeping transcriptional programs and significantly altered responses to microbial stimulation.
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Affiliation(s)
- Marwah Mousa
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Yue Liang
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Lin Tze Tung
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - HanChen Wang
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Connie Krawczyk
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, Michigan, United States
| | - David Langlais
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University Genome Centre, McGill University, Montreal, Quebec, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Anastasia Nijnik
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
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Steinacher E, Lenz M, Krychtiuk KA, Hengstenberg C, Huber K, Wojta J, Heinz G, Niessner A, Speidl WS, Koller L. Decreased percentages of plasmacytoid dendritic cells predict survival in critically ill patients. J Leukoc Biol 2024; 115:902-912. [PMID: 38180532 DOI: 10.1093/jleuko/qiae003] [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: 06/21/2023] [Revised: 12/04/2023] [Accepted: 12/19/2023] [Indexed: 01/06/2024] Open
Abstract
Critically ill patients admitted to intensive care units (ICUs) experience a broad variety of life-threatening conditions. Irrespective of the initial cause of hospitalization, many experience systemic immune dysregulation. Dendritic cells (DCs) are the most potent antigen-presenting cells and play a pivotal role in regulating the immune response by linking the innate to the adaptive immune system. The aim of this study was to analyze whether DCs or their respective subsets are associated with 30-d mortality in an unselected patient cohort admitted to a medical ICU with a cardiovascular focus. A total of 231 patients were included in this single-center prospective observational study. Blood was drawn at admission and after 72 h. Subsequently, flow cytometry was utilized for the analysis of DCs and their respective subsets. In the total cohort, low percentages of DCs were significantly associated with sepsis, respiratory failure, and septic shock. In particular, a significantly lower percentage of circulating plasmacytoid DCs (pDCs) was found to be a strong and independent predictor of 30-d mortality after adjustment for demographic and clinical variables with an hazard ratio of 4.2 (95% confidence interval: 1.3-13.3, P = 0.015). Additionally, low percentages of pDCs were correlated with additional markers of inflammation and organ dysfunction. In conclusion, we observed low percentages of DCs in patients admitted to an ICU experiencing sepsis, respiratory failure, and cardiogenic shock, suggesting their depletion as a contributing mechanism for the development of immune paralysis. In our cohort, pDCs were identified as the most robust subset to predict 30-d mortality.
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Affiliation(s)
- Eva Steinacher
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Max Lenz
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Konstantin A Krychtiuk
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Christian Hengstenberg
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Kurt Huber
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria
- 3rd Medical Department for Cardiology and Emergency Medicine, Wilhelminenhospital, Montleartstrasse 37, 1160 Vienna, Austria
- Medical Faculty, Sigmund Freud University, Freudplatz 1, 1020 Vienna, Austria
| | - Johann Wojta
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria
- Core Facilities, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Gottfried Heinz
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Alexander Niessner
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Walter S Speidl
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria
| | - Lorenz Koller
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
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Miao S, Chang Z, Gu B, Jiang J, Pei F, Liu Y, Zhou Y, Liu Z, Si X, Guan X, Wu J. GENERATION OF TOLEROGENIC DENDRITIC CELLS UNDER THE PERSISTENT INFLAMMATION STIMULATION. Shock 2024; 61:454-464. [PMID: 38412105 DOI: 10.1097/shk.0000000000002318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
ABSTRACT Immunosuppression, commonly accompanied by persistent inflammation, is a key feature in the later phase of sepsis. However, the pathophysiological mechanisms underlying this phenomenon remain unclear. Dendritic cells (DCs), specifically tolerogenic DCs (tolDCs), play a crucial role in this process by regulating immune responses through inducing T cell anergy and releasing anti-inflammatory cytokines. Nevertheless, the existing cell models are inadequate for investigating tolDCs during the immunosuppressive phase of sepsis. Therefore, this study aimed to develop a novel in vitro model to generate tolDCs under chronic inflammatory conditions. We have successfully generated tolDCs by exposing them to sublethal lipopolysaccharide (LPS) for 72 h while preserving cell viability. Considering that IL-10-induced tolDCs (IL-10-tolDCs) are well-established models, we compared the immunological tolerance between LPS-tolDCs and IL-10-tolDCs. Our findings indicated that both LPS-tolDCs and IL-10-tolDCs exhibited reduced expression of maturation markers, whereas their levels of inhibitory markers were elevated. Furthermore, the immunoregulatory activities of LPS-tolDCs and IL-10-tolDCs were found to be comparable. These dysfunctions include impaired antigen presenting capacity and suppression of T cell activation, proliferation, and differentiation. Notably, compared with IL-10-tolDCs, LPS-tolDCs showed a reduced response in maturation and cytokine production upon stimulation, indicating their potential as a better model for research. Overall, in comparison with IL-10-tolDCs, our data suggest that the immunological dysfunctions shown in LPS-tolDCs could more effectively elucidate the increased susceptibility to secondary infections during sepsis. Consequently, LPS-tolDCs have emerged as promising therapeutic targets for ameliorating the immunosuppressed state in septic patients.
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Kleimann P, Irschfeld LM, Grandoch M, Flögel U, Temme S. Trained Innate Immunity in Animal Models of Cardiovascular Diseases. Int J Mol Sci 2024; 25:2312. [PMID: 38396989 PMCID: PMC10889825 DOI: 10.3390/ijms25042312] [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: 01/14/2024] [Revised: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Acquisition of immunological memory is an important evolutionary strategy that evolved to protect the host from repetitive challenges from infectious agents. It was believed for a long time that memory formation exclusively occurs in the adaptive part of the immune system with the formation of highly specific memory T cells and B cells. In the past 10-15 years, it has become clear that innate immune cells, such as monocytes, natural killer cells, or neutrophil granulocytes, also have the ability to generate some kind of memory. After the exposure of innate immune cells to certain stimuli, these cells develop an enhanced secondary response with increased cytokine secretion even after an encounter with an unrelated stimulus. This phenomenon has been termed trained innate immunity (TI) and is associated with epigenetic modifications (histone methylation, acetylation) and metabolic alterations (elevated glycolysis, lactate production). TI has been observed in tissue-resident or circulating immune cells but also in bone marrow progenitors. Risk-factors for cardiovascular diseases (CVDs) which are associated with low-grade inflammation, such as hyperglycemia, obesity, or high salt, can also induce TI with a profound impact on the development and progression of CVDs. In this review, we briefly describe basic mechanisms of TI and summarize animal studies which specifically focus on TI in the context of CVDs.
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Affiliation(s)
- Patricia Kleimann
- Institute of Molecular Cardiology, Faculty of Medicine, University Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany; (P.K.); (U.F.)
| | - Lisa-Marie Irschfeld
- Department of Radiation Oncology, Faculty of Medicine, University Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany;
| | - Maria Grandoch
- Institute of Translational Pharmacology, Faculty of Medicine, University Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany;
- Cardiovascular Research Institute Düsseldorf (CARID), University Hospital, 40225 Düsseldorf, Germany
| | - Ulrich Flögel
- Institute of Molecular Cardiology, Faculty of Medicine, University Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany; (P.K.); (U.F.)
- Cardiovascular Research Institute Düsseldorf (CARID), University Hospital, 40225 Düsseldorf, Germany
| | - Sebastian Temme
- Cardiovascular Research Institute Düsseldorf (CARID), University Hospital, 40225 Düsseldorf, Germany
- Department of Anesthesiology, Faculty of Medicine, University Hospital, Heinrich-Heine-University, 40225 Düsseldorf, Germany
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Dong S, Pang H, Li F, Hua M, Liang M, Song C. Immunoregulatory function of SP-A. Mol Immunol 2024; 166:58-64. [PMID: 38244369 DOI: 10.1016/j.molimm.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/28/2023] [Accepted: 01/08/2024] [Indexed: 01/22/2024]
Abstract
Surfactant protein A (SP-A), a natural immune molecule, plays an important role in lung health. SP-A recognizes and binds microbial surface glycogroups through the C-type carbohydrate recognition domain, and then binds corresponding cell surface receptors (such as C1qRp, CRT-CD91 complex, CD14, SP-R210, Toll-like receptor, SIRP-α, CR3, etc.) through collagen-like region, and subsequently mediates biological effects. SP-A regulates lung innate immunity by promoting surfactant absorption by alveolar type II epithelial cells and phagocytosis of pathogenic microorganisms by alveolar macrophages. SP-A also regulates lung adaptive immunity by inhibiting DC maturation, and T cell proliferation and differentiation. This article reviews latest relationships between SP-A and adaptive and intrinsic immunity.
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Affiliation(s)
- Shu Dong
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical University, Anhui 233030, China; Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Anhui 233030, China
| | - Hongyuan Pang
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical University, Anhui 233030, China; Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Anhui 233030, China
| | - Fan Li
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical University, Anhui 233030, China; Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Anhui 233030, China
| | - Mengqing Hua
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical University, Anhui 233030, China; Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Anhui 233030, China
| | - Meng Liang
- Department of Biotechnology, School of Life Science, Bengbu Medical University, Anhui 233030, China.
| | - Chuanwang Song
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical University, Anhui 233030, China; Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Anhui 233030, China.
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Alanazi HH, Elasbali AM, Alanazi MK, El Azab EF. Medicinal Herbs: Promising Immunomodulators for the Treatment of Infectious Diseases. Molecules 2023; 28:8045. [PMID: 38138535 PMCID: PMC10745476 DOI: 10.3390/molecules28248045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 12/24/2023] Open
Abstract
Humans are constantly at high risk of emerging pandemics caused by viral and bacterial infections. The emergence of new pandemics is mainly caused by evolved viruses and bacteria that are highly resistant to existing medications. The rapid evolution of infectious agents demands the urgent investigation of new therapeutic strategies to prevent and treat these infections at an early stage. One of these therapeutic strategies includes the use of medicinal herbs for their antibacterial and antiviral properties. The use of herbal medicines as remedies is very ancient and has been employed for centuries. Many studies have confirmed the antimicrobial activities of herbs against various pathogens in vitro and in vivo. The therapeutic effect of medicinal herbs is mainly attributed to the natural bioactive molecules present in these plants such as alkaloids, flavonoids, and terpenoids. Different mechanisms have been proposed for how medicinal herbs enhance the immune system and combat pathogens. Such mechanisms include the disruption of bacterial cell membranes, suppression of protein synthesis, and limitation of pathogen replication through the inhibition of nucleic acid synthesis. Medicinal herbs have been shown to treat a number of infectious diseases by modulating the immune system's components. For instance, many medicinal herbs alleviate inflammation by reducing pro-inflammatory cytokines (e.g., tumor necrosis factor-alpha (TNF-α), interleukin-1, IL-6) while promoting the production of anti-inflammatory cytokines (e.g., IL-10). Medicinal herbs also play a role in defense against viral and intracellular infections by enhancing the proliferation and functions of natural killer cells, T-helper-1 cells, and macrophages. In this review, we will explore the use of the most common herbs in preventing and treating infectious and non-infectious diseases. Using current and recently published studies, we focus on the immunomodulatory and therapeutic effects induced by medicinal herbs to enhance immune responses during diseases.
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Affiliation(s)
- Hamad H. Alanazi
- Department of Clinical Laboratory Science, College of Applied Medical Sciences-Qurayyat, Jouf University, Al-Qurayyat 77455, Saudi Arabia; (A.M.E.); (E.F.E.A.)
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Zahedipour F, Jamialahmadi K, Zamani P, Reza Jaafari M. Improving the efficacy of peptide vaccines in cancer immunotherapy. Int Immunopharmacol 2023; 123:110721. [PMID: 37543011 DOI: 10.1016/j.intimp.2023.110721] [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: 05/24/2023] [Revised: 07/23/2023] [Accepted: 07/26/2023] [Indexed: 08/07/2023]
Abstract
Peptide vaccines have shown great potential in cancer immunotherapy by targeting tumor antigens and activating the patient's immune system to mount a specific response against cancer cells. However, the efficacy of peptide vaccines in inducing a sustained immune response and achieving clinical benefit remains a major challenge. In this review, we discuss the current status of peptide vaccines in cancer immunotherapy and strategies to improve their efficacy. We summarize the recent advancements in the development of peptide vaccines in pre-clinical and clinical settings, including the use of novel adjuvants, neoantigens, nano-delivery systems, and combination therapies. We also highlight the importance of personalized cancer vaccines, which consider the unique genetic and immunological profiles of individual patients. We also discuss the strategies to enhance the immunogenicity of peptide vaccines such as multivalent peptides, conjugated peptides, fusion proteins, and self-assembled peptides. Although, peptide vaccines alone are weak immunogens, combining peptide vaccines with other immunotherapeutic approaches and developing novel approaches such as personalized vaccines can be promising methods to significantly enhance their efficacy and improve the clinical outcomes for cancer patients.
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Affiliation(s)
- Fatemeh Zahedipour
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khadijeh Jamialahmadi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parvin Zamani
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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11
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Wang Q, Liu P, Wen Y, Li K, Bi B, Li BB, Qiu M, Zhang S, Li Y, Li J, Chen H, Yin Y, Zeng L, Zhang C, He Y, Zhao J. Metal-enriched HSP90 nanoinhibitor overcomes heat resistance in hyperthermic intraperitoneal chemotherapy used for peritoneal metastases. Mol Cancer 2023; 22:95. [PMID: 37316830 DOI: 10.1186/s12943-023-01790-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/16/2023] [Indexed: 06/16/2023] Open
Abstract
Clinical hyperthermic intraperitoneal chemotherapy (HIPEC) is regarded as a potential treatment that can prolong survival of patients with peritoneal metastases after cytoreductive surgery. However, treated tumor cells are prone to becoming heat resistant to HIPEC therapy through high expression of heat shock proteins (HSPs). Here, a carrier-free bifunctional nanoinhibitor was developed for HIPEC therapy in the management of peritoneal metastases. Self-assembly of the nanoinhibitor was formed by mixing Mn ion and epigallocatechin gallate (EGCG) in a controllable manner. Such nanoinhibitor directly inhibited HSP90 and impaired the HSP90 chaperone cycle by reduced intracellular ATP level. Additionally, heat and Mn ion synergistically induced oxidative stress and expression of caspase 1, which activated GSDMD by proteolysis and caused pyroptosis in tumor cells, triggering immunogenic inflammatory cell death and induced maturation of dendritic cells through the release of tumor antigens. This strategy to inhibit heat resistance in HIPEC presented an unprecedented paradigm for converting "cold" tumors into "hot" ones, thus significantly eradicating disseminated tumors located deep in the abdominal cavity and stimulating immune response in peritoneal metastases of a mouse model. Collectively, the nanoinhibitor effectively induced pyroptosis of colon tumor cells under heat conditions by inhibiting heat stress resistance and increasing oxidative stress, which may provide a new strategy for treatment of colorectal peritoneal metastases.
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Affiliation(s)
- Qiang Wang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Peng Liu
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Yingfei Wen
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Kuan Li
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Bo Bi
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Bin-Bin Li
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
| | - Miaojuan Qiu
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
| | - Shiqiang Zhang
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - You Li
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China
| | - Jia Li
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
| | - Hengxing Chen
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
| | - Yuan Yin
- Gastric Cancer Center, West China Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Sichuan, China
| | - Leli Zeng
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China.
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China.
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China.
| | - Changhua Zhang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China.
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China.
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China.
| | - Yulong He
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China.
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China.
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China.
| | - Jing Zhao
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, Guangdong, China.
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong, China.
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12
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Decraene B, Vanmechelen M, Clement P, Daisne JF, Vanden Bempt I, Sciot R, Garg AD, Agostinis P, De Smet F, De Vleeschouwer S. Cellular and molecular features related to exceptional therapy response and extreme long-term survival in glioblastoma. Cancer Med 2023. [PMID: 36776000 DOI: 10.1002/cam4.5681] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/17/2023] [Accepted: 01/31/2023] [Indexed: 02/14/2023] Open
Abstract
Glioblastoma Multiforme (GBM) remains the most common malignant primary brain tumor with a dismal prognosis that rarely exceeds beyond 2 years despite extensive therapy, which consists of maximal safe surgical resection, radiotherapy, and/or chemotherapy. Recently, it has become clear that GBM is not one homogeneous entity and that both intra-and intertumoral heterogeneity contributes significantly to differences in tumoral behavior which may consequently be responsible for differences in survival. Strikingly and in spite of its dismal prognosis, small fractions of GBM patients seem to display extremely long survival, defined as surviving over 10 years after diagnosis, compared to the large majority of patients. Although the underlying mechanisms for this peculiarity remain largely unknown, emerging data suggest that still poorly characterized both cellular and molecular factors of the tumor microenvironment and their interplay probably play an important role. We hereby give an extensive overview of what is yet known about these cellular and molecular features shaping extreme long survival in GBM.
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Affiliation(s)
- B Decraene
- KU Leuven, Laboratory for Precision Cancer Medicine, Translational Cell and Tissue Research Unit, Leuven, Belgium.,KU Leuven Department of Neurosciences, Experimental Neurosurgery and Neuroanatomy Research Group, Leuven, Belgium.,Department of Neurosurgery, University Hospitals Leuven, Leuven, Belgium
| | - M Vanmechelen
- KU Leuven, Laboratory for Precision Cancer Medicine, Translational Cell and Tissue Research Unit, Leuven, Belgium.,Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
| | - P Clement
- Department of General Medical Oncology, University Hospitals Leuven, Leuven, Belgium
| | - J F Daisne
- Radiation Oncology Department, University Hospitals Leuven, Leuven, Belgium
| | - I Vanden Bempt
- Department of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - R Sciot
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - A D Garg
- KU Leuven, VIB Center for Cancer Biology Research, Leuven, Belgium
| | - P Agostinis
- KU Leuven, Laboratory of Cell Stress & Immunity (CSI), Department of Cellular & Molecular Medicine, Leuven, Belgium
| | - F De Smet
- KU Leuven, Laboratory for Precision Cancer Medicine, Translational Cell and Tissue Research Unit, Leuven, Belgium
| | - S De Vleeschouwer
- KU Leuven Department of Neurosciences, Experimental Neurosurgery and Neuroanatomy Research Group, Leuven, Belgium.,Department of Neurosurgery, University Hospitals Leuven, Leuven, Belgium.,KU Leuven, Leuven Brain Institute (LBI), Leuven, Belgium
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13
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Bai S, Wei Y, Liu R, Chen Y, Ma W, Wang M, Chen L, Luo Y, Du J. The role of transient receptor potential channels in metastasis. Biomed Pharmacother 2023; 158:114074. [PMID: 36493698 DOI: 10.1016/j.biopha.2022.114074] [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: 11/05/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Metastasis is the hallmark of failed tumor treatment and is typically associated with death due to cancer. Transient receptor potential (TRP) channels affect changes in intracellular calcium concentrations and participate at every stage of metastasis. Further, they increase the migratory ability of tumor cells, promote angiogenesis, regulate immune function, and promote the growth of tumor cells through changes in gene expression and function. In this review, we explore the potential mechanisms of action of TRP channels, summarize their role in tumor metastasis, compile inhibitors of TRP channels relevant in tumors, and discuss current challenges in research on TRP channels involved in tumor metastasis.
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Affiliation(s)
- Suwen Bai
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Yuan Wei
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Rong Liu
- School of Basic Medical Sciences, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yuhua Chen
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Wanling Ma
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Minghua Wang
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Li Chen
- Department of obstetrics and gynecology, The Seventh Affiliated Hospital, Sun Yat-sen University, Zhenyuan Rd, Guangming Dist., Shenzhen, Guangdong 518107, China
| | - Yumei Luo
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
| | - Juan Du
- Ciechanover Institute of Precision and Regenerative Medicine, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China.
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14
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Alrumaihi F. The Multi-Functional Roles of CCR7 in Human Immunology and as a Promising Therapeutic Target for Cancer Therapeutics. Front Mol Biosci 2022; 9:834149. [PMID: 35874608 PMCID: PMC9298655 DOI: 10.3389/fmolb.2022.834149] [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: 12/13/2021] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
An important hallmark of the human immune system is to provide adaptive immunity against pathogens but tolerance toward self-antigens. The CC-chemokine receptor 7 (CCR7) provides a significant contribution in guiding cells to and within lymphoid organs and is important for acquiring immunity and tolerance. The CCR7 holds great importance in establishing thymic architecture and function and naïve and regulatory T-cell homing in the lymph nodes. Similarly, the receptor is a key regulator in cancer cell migration and the movement of dendritic cells. This makes the CCR7 an important receptor as a drug and prognostic marker. In this review, we discussed several biological roles of the CCR7 and its importance as a drug and prognostic marker.
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Affiliation(s)
- Faris Alrumaihi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
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15
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Utilization of gut environment-mediated control system of host immunity in the development of vaccine adjuvants. Vaccine 2022; 40:5399-5403. [DOI: 10.1016/j.vaccine.2022.07.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 11/17/2022]
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16
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Jayasekhar R, Mathew JKK, Sangi Z, Marconi SD, Rupa V, Rabi S. Immunolocalization of CD1a expressing dendritic cells in sinonasal polyposis. J Immunoassay Immunochem 2022; 43:403-419. [PMID: 35147059 DOI: 10.1080/15321819.2022.2034645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Sinonasal polyps are benign projections of edematous nasal mucosa lined by respiratory epithelium. Langerhans cells (LCs) belonging to the dendritic cell family located in respiratory epithelium are involved in antigen presentation and maintenance of local immunological homeostasis. This study aims to elucidate the morphology and distribution of CD1a positive LCs in normal nasal mucosa and compare the same with polypoid nasal mucosa by immunohistochemistry. Normal nasal mucosa (n = 20) was obtained from patients who underwent septoplasty for deviated nasal septum. Polypoid nasal mucosa (n = 22) was obtained from patients with chronic rhinosinusitis (CRS) or allergic fungal rhinosinusitis who underwent excision of nasal polyps. The tissues obtained were processed for immunohistochemistry and stained with CD1a-EP80 Rabbit monoclonal antibody. In the tissues studied, CD1a positive LCs were observed in both the epithelium and lamina propria. Different morphological subtypes of LCs were noted in the epithelium. The cells were distributed adjacent to walls of subepithelial capillaries and cysts. The median number of CD1a positive LCs was significantly higher in polypoid category (13.5 per mm2) as compared with normal nasal mucosa (2.5per mm2) (p = .001). Presence of CD1a positive LCs in polypoid nasal mucosa hints at a critical immunological role in the etiopathogenesis of nasal polyps.
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Affiliation(s)
- Rachel Jayasekhar
- Department of Anatomy, Christian Medical College, The Tamil Nadu Dr. MGR Medical University Chennai, Vellore, India
| | - John Kandam Kulathu Mathew
- Department of Anatomy, Christian Medical College, The Tamil Nadu Dr. MGR Medical University Chennai, Vellore, India
| | - Zorem Sangi
- Department of Otorhinolaryngology, Christian Medical College, The Tamil Nadu Dr. MGR Medical University Chennai, Vellore, India
| | - Sam David Marconi
- Department of Community Health and Development, Christian Medical College, The Tamil Nadu Dr. MGR Medical University Chennai, Vellore, India
| | - Vedantam Rupa
- Department of Otorhinolaryngology, Christian Medical College, The Tamil Nadu Dr. MGR Medical University Chennai, Vellore, India
| | - Suganthy Rabi
- Department of Anatomy, Christian Medical College, The Tamil Nadu Dr. MGR Medical University Chennai, Vellore, India
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17
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Liu Z, Hosomi K, Shimoyama A, Yoshii K, Sun X, Lan H, Wang Y, Yamaura H, Kenneth D, Saika A, Nagatake T, Kiyono H, Fukase K, Kunisawa J. Chemically Synthesized Alcaligenes Lipid A as an Adjuvant to Augment Immune Responses to Haemophilus Influenzae Type B Conjugate Vaccine. Front Pharmacol 2021; 12:763657. [PMID: 34744743 PMCID: PMC8569242 DOI: 10.3389/fphar.2021.763657] [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: 08/24/2021] [Accepted: 10/07/2021] [Indexed: 11/25/2022] Open
Abstract
We previously identified Alcaligenes spp. as a commensal bacterium that resides in lymphoid tissues, including Peyer’s patches. We found that Alcaligenes-derived lipopolysaccharide acted as a weak agonist of Toll-like receptor four due to the unique structure of lipid A, which lies in the core of lipopolysaccharide. This feature allowed the use of chemically synthesized Alcaligenes lipid A as a safe synthetic vaccine adjuvant that induces Th17 polarization to enhance systemic IgG and respiratory IgA responses to T-cell–dependent antigens (e.g., ovalbumin and pneumococcal surface protein A) without excessive inflammation. Here, we examined the adjuvant activity of Alcaligenes lipid A on a Haemophilus influenzae B conjugate vaccine that contains capsular polysaccharide polyribosyl ribitol phosphate (PRP), a T-cell–independent antigen, conjugated with the T-cell–dependent tetanus toxoid (TT) antigen (i.e., PRP-TT). When mice were subcutaneously immunized with PRP alone or mixed with TT, Alcaligenes lipid A did not affect PRP-specific IgG production. In contrast, PRP-specific serum IgG responses were enhanced when mice were immunized with PRP-TT, but these responses were impaired in similarly immunized T-cell—deficient nude mice. Furthermore, TT-specific—but not PRP-specific—T-cell activation occurred in mice immunized with PRP-TT together with Alcaligenes lipid A. In addition, coculture with Alcaligenes lipid A promoted significant proliferation of and enhanced antibody production by B cells. Together, these findings suggest that Alcaligenes lipid A exerts an adjuvant activity on thymus-independent Hib polysaccharide antigen in the presence of a T-cell–dependent conjugate carrier antigen.
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Affiliation(s)
- Zilai Liu
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan
| | | | - Ken Yoshii
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Medicine, Osaka University, Suita, Japan
| | - Xiao Sun
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Huangwenxian Lan
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Yunru Wang
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Haruki Yamaura
- Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Davie Kenneth
- Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Azusa Saika
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Takahiro Nagatake
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan
| | - Hiroshi Kiyono
- International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Division of Gastroenterology, Department of Medicine, University of California San Diego (UCSD), San Diego, CA, United States.,Chiba University (CU)-UCSD Center for Mucosal Immunology, Allergy and Vaccines (cMAV), UCSD, San Diego, CA, United States.,Future Medicine Education and Research Organization, Chiba University, Chiba, Japan.,Division of Mucosal Immunology, IMSUT Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Koichi Fukase
- Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health, and Nutrition (NIBIOHN), Ibaraki, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan.,Graduate School of Science, Osaka University, Toyonaka, Japan.,Graduate School of Medicine, Osaka University, Suita, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Graduate School of Medicine, Kobe University, Kobe, Japan.,Research Organization for Nano and Life Innovation, Waseda University, Tokyo, Japan.,Graduate School of Dentistry, Osaka University, Suita, Japan
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18
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Kelly WJ, Giles AJ, Gilbert M. T lymphocyte-targeted immune checkpoint modulation in glioma. J Immunother Cancer 2021; 8:jitc-2019-000379. [PMID: 32051289 PMCID: PMC7057419 DOI: 10.1136/jitc-2019-000379] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2020] [Indexed: 02/07/2023] Open
Abstract
Immunomodulatory therapies targeting inhibitory checkpoint molecules have revolutionized the treatment of solid tumor malignancies. Concerns about whether systemic administration of an immune checkpoint inhibitor could impact primary brain tumors were answered with the observation of definitive responses in pediatric patients harboring hypermutated gliomas. Although initial clinical results in patients with glioblastoma (GBM) were disappointing, recently published results have demonstrated a potential survival benefit in patients with recurrent GBM treated with neoadjuvant programmed cell death protein 1 blockade. While these findings necessitate verification in subsequent studies, they support the possibility of achieving clinical meaningful immune responses in malignant primary brain tumors including GBM, a disease in dire need of additional therapeutic options. There are several challenges involved in treating glioma with immune checkpoint modulators including the immunosuppressive nature of GBM itself with high inhibitory checkpoint expression, the immunoselective blood brain barrier impairing the ability for peripheral lymphocytes to traffic to the tumor microenvironment and the high prevalence of corticosteroid use which suppress lymphocyte activation. However, by simultaneously targeting multiple costimulatory and inhibitory pathways, it may be possible to achieve an effective antitumoral immune response. To this end, there are now several novel agents targeting more recently uncovered “second generation” checkpoint molecules. Given the multiplicity of drugs being considered for combination regimens, an increased understanding of the mechanisms of action and resistance combined with more robust preclinical and early clinical testing will be needed to be able to adequately test these agents. This review summarizes our current understanding of T lymphocyte-modulating checkpoint molecules as it pertains to glioma with the hope for a renewed focus on the most promising therapeutic strategies.
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Affiliation(s)
| | - Amber Jin Giles
- Neuro-Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Mark Gilbert
- Neuro-Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
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19
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Shah SB. COVID-19 and Progesterone: Part 1.SARS-CoV-2, Progesterone and its potential clinical use. ENDOCRINE AND METABOLIC SCIENCE 2021; 5:100109. [PMID: 34396353 PMCID: PMC8349425 DOI: 10.1016/j.endmts.2021.100109] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/28/2021] [Accepted: 08/02/2021] [Indexed: 12/24/2022] Open
Abstract
SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) infection is a global medical challenge. Experience based medicines and therapies are being attempted and vaccines are being developed. SARS-CoV-2 exhibits varied patterns of infection and clinical presentations with varied disease outcomes. These attributes are strongly suggestive of some variables that differ among individuals and that affect the course of SARS-CoV-2 infection and symptoms of COVID-19 (Corona Virus Disease of 2019). Sex hormones vary with ageing, between the sexes, among individuals and populations. Sex hormones are known to play a role in immunity and infections. Progesterone is a critical host factor to promote faster recovery following Influenza A virus infection. Anti-inflammatory effects of progesterone are noted. In part 1 of the current study the regulatory role of progesterone for SARS-CoV-2 infection and COVID-19 is analyzed. The role of progesterone at different stages of the SARS CoV-2 infection is investigated with respect to two types of immunity status: immune regulation and immune dysregulation. Progesterone could have various alleviating impacts from SARS-CoV-2 entry till recovery: reversing of hypoxia, stabilizing of blood pressure, controlling thrombosis, balancing electrolytes, reducing the viral load, regulation of immune responses, damage repair, and clearance of debris among others. The present research adds to the available evidence by providing a comprehensive and thorough evaluation of the regulatory role of progesterone in SARS COV-2 infection, COVID-19 pathogenesis, and immune dysregulation. The available evidence has implications for upcoming studies about pathophysiology of COVID-19, as well as the roles of progesterone and other hormones in other infectious diseases.
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20
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Iwanowycz S, Ngoi S, Li Y, Hill M, Koivisto C, Parrish M, Guo B, Li Z, Liu B. Type-2 dendritic cells mediate control of cytotoxic T cell-resistant tumors. JCI Insight 2021; 6:e145885. [PMID: 34283809 PMCID: PMC8492342 DOI: 10.1172/jci.insight.145885] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 07/15/2021] [Indexed: 11/17/2022] Open
Abstract
Type 2 DCs (DC2s) comprise the majority of conventional DCs within most tumors; however, little is known about their ability to initiate and sustain antitumor immunity, as most studies have focused on antigen cross-presenting DC1s. Here, we report that DC2 infiltration identified by analysis of multiple human cancer data sets showed a significant correlation with survival across multiple human cancers, with the benefit being seen in tumors resistant to cytotoxic T cell control. Characterization of DC subtype infiltration into an immunotherapy-resistant model of breast cancer revealed that impairment of DC1s through 2 unique models resulted in enhanced DC2 functionality and improved tumor control. BATF3 deficiency depleted intratumoral DC1s, which led to increased DC2 lymph node migration and CD4+ T cell activation. Enhancing DC2 stimulatory potential by genetic deletion of Hsp90b1 (encoding molecular chaperon GP96) led to a similar enhancement of T cell immunity and improved survival in a spontaneous breast cancer model. These data highlight the therapeutic and prognostic potential of DC2s within checkpoint blockade–resistant tumors.
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Affiliation(s)
- Stephen Iwanowycz
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, United States of America
| | - Soo Ngoi
- Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, United States of America
| | - Yingqi Li
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, United States of America
| | - Megan Hill
- Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, United States of America
| | - Christopher Koivisto
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, United States of America
| | - Melodie Parrish
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, United States of America
| | - Beichu Guo
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, United States of America
| | - Zihai Li
- The Pelotonia Institute for Immuno-Oncology, The Ohio State University College of Medicine, Columbus, United States of America
| | - Bei Liu
- Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, United States of America
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21
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Trakaki A, Marsche G. Current Understanding of the Immunomodulatory Activities of High-Density Lipoproteins. Biomedicines 2021; 9:biomedicines9060587. [PMID: 34064071 PMCID: PMC8224331 DOI: 10.3390/biomedicines9060587] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 02/06/2023] Open
Abstract
Lipoproteins interact with immune cells, macrophages and endothelial cells - key players of the innate and adaptive immune system. High-density lipoprotein (HDL) particles seem to have evolved as part of the innate immune system since certain HDL subspecies contain combinations of apolipoproteins with immune regulatory functions. HDL is enriched in anti-inflammatory lipids, such as sphingosine-1-phosphate and certain saturated lysophospholipids. HDL reduces inflammation and protects against infection by modulating immune cell function, vasodilation and endothelial barrier function. HDL suppresses immune cell activation at least in part by modulating the cholesterol content in cholesterol/sphingolipid-rich membrane domains (lipid rafts), which play a critical role in the compartmentalization of signaling pathways. Acute infections, inflammation or autoimmune diseases lower HDL cholesterol levels and significantly alter HDL metabolism, composition and function. Such alterations could have a major impact on disease progression and may affect the risk for infections and cardiovascular disease. This review article aims to provide a comprehensive overview of the immune cell modulatory activities of HDL. We focus on newly discovered activities of HDL-associated apolipoproteins, enzymes, lipids, and HDL mimetic peptides.
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22
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Bocchino M, Zanotta S, Capitelli L, Galati D. Dendritic Cells Are the Intriguing Players in the Puzzle of Idiopathic Pulmonary Fibrosis Pathogenesis. Front Immunol 2021; 12:664109. [PMID: 33995394 PMCID: PMC8121252 DOI: 10.3389/fimmu.2021.664109] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/15/2021] [Indexed: 12/12/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is the most devastating progressive interstitial lung disease that remains refractory to treatment. Pathogenesis of IPF relies on the aberrant cross-talk between injured alveolar cells and myofibroblasts, which ultimately leads to an aberrant fibrous reaction. The contribution of the immune system to IPF remains not fully explored. Recent evidence suggests that both innate and adaptive immune responses may participate in the fibrotic process. Dendritic cells (DCs) are the most potent professional antigen-presenting cells that bridge innate and adaptive immunity. Also, they exert a crucial role in the immune surveillance of the lung, where they are strategically placed in the airway epithelium and interstitium. Immature DCs accumulate in the IPF lung close to areas of epithelial hyperplasia and fibrosis. Conversely, mature DCs are concentrated in well-organized lymphoid follicles along with T and B cells and bronchoalveolar lavage of IPF patients. We have recently shown that all sub-types of peripheral blood DCs (including conventional and plasmacytoid DCs) are severely depleted in therapy naïve IPF patients. Also, the low frequency of conventional CD1c+ DCs is predictive of a worse prognosis. The purpose of this mini-review is to focus on the main evidence on DC involvement in IPF pathogenesis. Unanswered questions and opportunities for future research ranging from a better understanding of their contribution to diagnosis and prognosis to personalized DC-based therapies will be explored.
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Affiliation(s)
- Marialuisa Bocchino
- Respiratory Medicine Division, Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Serena Zanotta
- Hematology-Oncology and Stem Cell Transplantation Unit, Department of Hematology and Developmental Therapeutics, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Ludovica Capitelli
- Respiratory Medicine Division, Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Domenico Galati
- Hematology-Oncology and Stem Cell Transplantation Unit, Department of Hematology and Developmental Therapeutics, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
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23
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Chen Y, De Koker S, De Geest BG. Engineering Strategies for Lymph Node Targeted Immune Activation. Acc Chem Res 2020; 53:2055-2067. [PMID: 32910636 DOI: 10.1021/acs.accounts.0c00260] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Development of vaccine technology that induces long lasting and potent adaptive immune responses is of vital importance to combat emerging pathogens and to design the next generation of cancer immunotherapies. Advanced biomaterials such as nanoparticle carriers are intensively explored to increase the efficacy and safety of vaccines and immunotherapies, based on their intrinsic potential to focus the therapeutic payload onto the relevant immune cells and to limit systemic distribution. With adaptive immune responses being primarily initiated in lymph nodes, the potency of nanoparticle vaccines in turn is tightly linked to their capacity to reach and accumulate in the lymph nodes draining the immunization site. Here, we discuss the main strategies applied to increase nanoparticle delivery to lymph nodes: (1) direct lymph node injection, (2) active cell-mediated transport through targeting of peripheral dendritic cells, and (3) exploiting passive transport through the afferent lymphatics.The intralymph nodal injection is obviously the most direct way for nanoparticles to reach lymph nodes, and multiple studies have demonstrated its capability in enhancing immunostimulant drugs' immune activation and increasing the therapeutic window. However, the requirement of using ultrasound guidance for mapping lymph nodes in patients renders intranodal administration unsuited for mass vaccination campaigns. As lymph nodes are fine structured organs with lymphocytes and chemokine gradients arrayed in a highly ordered fashion, the breakdown of such formats by the intralymph nodal injection is another concern. The exploitation of dendritic cells as live vectors for transporting nanoparticles to lymph nodes has intensively been studied both ex vivo and in vivo. While ex vivo engineering of dendritic cells in theory can achieve 100% dendritic cell-specific selectivity, a scenario impossible to be achieved in vivo, this procedure is usually laborious and complicated and entails the participation of professional staff and equipment. In addition, the poor efficiency of dendritic cell migration to the draining lymph node is another significant limitation following the injection of ex vivo cultured dendritic cells. Thus, in vivo targeting of surface receptors, particularly C-type lectin receptors, on dendritic cells by conjugating nanoparticles with antibodies or ligands is intensively studied by both academia and industry. Although such nanoparticles in vivo still face nonspecific engulfment by various phagocytes, multiple studies have shown its feasibility in targeting dendritic cells with high selectivity. Moreover, through optimizing the physicochemical properties of nanoparticles, nanoparticles can passively drain to lymph nodes carried by the interstitial flow. Compared to dendritic cell-mediated transport, passive draining is much faster and of higher efficiency. Of all such properties, size is the most important parameter as large particles (>500 nm) can only reach lymph nodes by an active cell-mediated transport. Other surface properties, such as the charge and the balance of hydrophobicity-vs-hydrophilicity, strongly influence the mobility of nanoparticles in the extracellular space. In addition, albumin, a natural fatty acid transporter, has recently been demonstrated capable of binding the amphiphiles through their lipid moiety and subsequent transporting them to lymph nodes.
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Affiliation(s)
- Yong Chen
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghemt, Belgium
| | | | - Bruno G. De Geest
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghemt, Belgium
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24
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Clostridial C3 Toxins Enter and Intoxicate Human Dendritic Cells. Toxins (Basel) 2020; 12:toxins12090563. [PMID: 32883045 PMCID: PMC7551598 DOI: 10.3390/toxins12090563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 11/17/2022] Open
Abstract
C3 protein toxins produced by Clostridium (C.) botulinum and C. limosum are mono-ADP-ribosyltransferases, which specifically modify the GTPases Rho A/B/C in the cytosol of monocytic cells, thereby inhibiting Rho-mediated signal transduction in monocytes, macrophages, and osteoclasts. C3 toxins are selectively taken up into the cytosol of monocytic cells by endocytosis and translocate from acidic endosomes into the cytosol. The C3-catalyzed ADP-ribosylation of Rho proteins inhibits essential functions of these immune cells, such as migration and phagocytosis. Here, we demonstrate that C3 toxins enter and intoxicate dendritic cells in a time- and concentration-dependent manner. Both immature and mature human dendritic cells efficiently internalize C3 exoenzymes. These findings could also be extended to the chimeric fusion toxin C2IN-C3lim. Moreover, stimulated emission depletion (STED) microscopy revealed the localization of the internalized C3 protein in endosomes and emphasized its potential use as a carrier to deliver foreign proteins into dendritic cells. In contrast, the enzyme C2I from the binary C. botulinum C2 toxin was not taken up into dendritic cells, indicating the specific uptake of C3 toxins. Taken together, we identified human dendritic cells as novel target cells for clostridial C3 toxins and demonstrated the specific uptake of these toxins via endosomal vesicles.
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25
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Chinn AM, Insel PA. Cyclic AMP in dendritic cells: A novel potential target for disease-modifying agents in asthma and other allergic disorders. Br J Pharmacol 2020; 177:3363-3377. [PMID: 32372523 DOI: 10.1111/bph.15095] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/27/2020] [Accepted: 04/03/2020] [Indexed: 12/14/2022] Open
Abstract
Allergic diseases are immune disorders that are a global health problem, affecting a large portion of the world's population. Allergic asthma is a heterogeneous disease that alters the biology of the airway. A substantial portion of patients with asthma do not respond to conventional therapies; thus, new and effective therapeutics are needed. Dendritic cells (DCs), antigen presenting cells that regulate helper T cell differentiation, are key drivers of allergic inflammation but are not the target of current therapies. Here we review the role of dendritic cells in allergic conditions and propose a disease-modifying strategy for treating allergic asthma: cAMP-mediated inhibition of dendritic cells to blunt allergic inflammation. This approach contrasts with current treatments that focus on treating clinical manifestations of airway inflammation. Disease-modifying agents that target cAMP and its signalling pathway in dendritic cells may provide a novel means to treat asthma and other allergic diseases.
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Affiliation(s)
- Amy M Chinn
- Department of Pharmacology, University of California, San Diego, La Jolla, California, USA
| | - Paul A Insel
- Department of Pharmacology, University of California, San Diego, La Jolla, California, USA.,Department of Medicine, University of California, San Diego, La Jolla, California, USA
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26
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Nadeem S, Maurya SK, Das DK, Khan N, Agrewala JN. Gut Dysbiosis Thwarts the Efficacy of Vaccine Against Mycobacterium tuberculosis. Front Immunol 2020; 11:726. [PMID: 32508806 PMCID: PMC7248201 DOI: 10.3389/fimmu.2020.00726] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/31/2020] [Indexed: 12/12/2022] Open
Abstract
The generation of enduring protective immunity by vaccines is of utmost importance. Intriguingly, there is considerable variation in the efficacy of vaccines amongst individuals. Various studies have shown that normal flora of gastrointestinal tract plays a vital role in maintaining host homeostasis and immunity. Since gut microbiome is also extremely variable between individuals, we speculate that it might impact individual’s response to vaccines. Consequently, we administered broad spectrum antibiotics cocktail to induce gut dysbiosis and monitored its impact on the generation of long-lasting memory T cells and thereby BCG vaccine efficacy. Interestingly, gut dysbiosis significantly decreased the activation of CD4+ T cells and CD8+ T cells. Further, there was decline in the frequency of memory CD4+ T cells and CD8+ T cells in lungs and secondary lymphoid organs of the vaccinated animals. Moreover, it dampened the IFN-γ and TNF-α secretion and proliferation of Mtb-specific T cells. Most importantly, dysbiosis hampered Mtb clearance in vaccinated animals, as evidenced by increase in the colony forming units (CFUs) in lungs and spleen. Our findings indicate that gut dysbiosis can be one of the major factors responsible for variable efficacy of TB vaccines across the world.
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Affiliation(s)
- Sajid Nadeem
- CSIR-Institute of Microbial Technology, Chandigarh, India
| | | | | | - Nargis Khan
- CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Javed N Agrewala
- CSIR-Institute of Microbial Technology, Chandigarh, India.,Indian Institute of Technology, Ropar, India
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27
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Zhang Q, Gan C, Liu H, Wang L, Li Y, Tan Z, You J, Yao Y, Xie Y, Yin W, Ye T. Cryptotanshinone reverses the epithelial-mesenchymal transformation process and attenuates bleomycin-induced pulmonary fibrosis. Phytother Res 2020; 34:2685-2696. [PMID: 32281701 DOI: 10.1002/ptr.6699] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/13/2020] [Accepted: 03/25/2020] [Indexed: 02/05/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fibrotic interstitial pneumonia that causes pulmonary tissue damage and functional impairment. To investigate the effects of cryptotanshinone on pulmonary fibrosis, the expression of NIH/3T3, HPF, and rat primary pulmonary fibroblasts was measured and found to be inhibited by CPT in a time- and concentration-dependent manner, and the upregulation of α-SMA expression in NIH/3T3 and HPF cells, which had been stimulated by TGFβ-1, was decreased after CPT administration. We observed that CPT could reverse the increase in α-SMA expression and vimentin and the decrease in E-cad expression in A549 cells, which had been induced by 5 ng/mL TGFβ-1, indicating that CPT has inhibitory effects in the EMT process. A BLM-induced pulmonary fibrosis model was established in C57BL/6 mice. The lung coefficient and hydroxyproline content increased significantly in the BLM-induced group and were decreased in the CPT-treated group. The expression levels of collagen-I and α-SMA and the phosphorylation level of Stat3 were significantly increased, and CPT treatment decreased these levels. Furthermore, the results from the flow cytometry analysis indicated that, in lung tissues, the frequencies of MDSCs, macrophages, DCs and T cells were considerably increased in the BLM-induced group, while CPT treatment reduced these immunocyte populations.
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Affiliation(s)
- Qianyu Zhang
- Department of Liver Surgery & Liver Transplantation, State Key of Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, People's Republic of China.,West China School of Public Health and Heathy Food Evaluation Research Center and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Cailing Gan
- Department of Liver Surgery & Liver Transplantation, State Key of Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, People's Republic of China
| | - Hongyao Liu
- Department of Liver Surgery & Liver Transplantation, State Key of Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, People's Republic of China
| | - Liqun Wang
- West China School of Public Health and Heathy Food Evaluation Research Center and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yali Li
- West China School of Public Health and Heathy Food Evaluation Research Center and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Zui Tan
- Department of Liver Surgery & Liver Transplantation, State Key of Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, People's Republic of China
| | - Jia You
- West China School of Public Health and Heathy Food Evaluation Research Center and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yuqin Yao
- West China School of Public Health and Heathy Food Evaluation Research Center and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yongmei Xie
- Department of Liver Surgery & Liver Transplantation, State Key of Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, People's Republic of China
| | - Wenya Yin
- West China School of Public Health and Heathy Food Evaluation Research Center and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Tinghong Ye
- Department of Liver Surgery & Liver Transplantation, State Key of Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, People's Republic of China
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28
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Wagener K, Bros M, Krumb M, Langhanki J, Pektor S, Worm M, Schinnerer M, Montermann E, Miederer M, Frey H, Opatz T, Rösch F. Targeting of Immune Cells with Trimannosylated Liposomes. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.201900185] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Karolin Wagener
- Institute of Nuclear Chemistry Johannes Gutenberg University Fritz‐Strassmann‐Weg 2 Mainz 55128 Germany
| | - Matthias Bros
- Department of DermatologyUniversity Medical Center Langenbeckstraße 1 Mainz 55101 Germany
| | - Matthias Krumb
- Department of ChemistryJohannes Gutenberg University Duesbergweg 10–14 Mainz 55128 Germany
| | - Jens Langhanki
- Department of ChemistryJohannes Gutenberg University Duesbergweg 10–14 Mainz 55128 Germany
| | - Stefanie Pektor
- Clinic and Polyclinic of Nuclear MedicineUniversity Medical Center Langenbeckstraße 1 Mainz 55101 Germany
| | - Matthias Worm
- Department of ChemistryJohannes Gutenberg University Duesbergweg 10–14 Mainz 55128 Germany
| | - Meike Schinnerer
- Department of ChemistryJohannes Gutenberg University Duesbergweg 10–14 Mainz 55128 Germany
- Institute of Physical ChemistryJohannes Gutenberg University Jakob‐Welder‐Weg 11 Mainz 55128 Germany
| | - Evelyn Montermann
- Department of DermatologyUniversity Medical Center Langenbeckstraße 1 Mainz 55101 Germany
| | - Matthias Miederer
- Clinic and Polyclinic of Nuclear MedicineUniversity Medical Center Langenbeckstraße 1 Mainz 55101 Germany
| | - Holger Frey
- Department of ChemistryJohannes Gutenberg University Duesbergweg 10–14 Mainz 55128 Germany
| | - Till Opatz
- Department of ChemistryJohannes Gutenberg University Duesbergweg 10–14 Mainz 55128 Germany
| | - Frank Rösch
- Institute of Nuclear Chemistry Johannes Gutenberg University Fritz‐Strassmann‐Weg 2 Mainz 55128 Germany
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29
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Spix B, Chao YK, Abrahamian C, Chen CC, Grimm C. TRPML Cation Channels in Inflammation and Immunity. Front Immunol 2020; 11:225. [PMID: 32184778 PMCID: PMC7058977 DOI: 10.3389/fimmu.2020.00225] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 01/28/2020] [Indexed: 12/24/2022] Open
Abstract
Background: In 1883, Ilya Mechnikov discovered phagocytes and established the concept of phagocytosis by macrophages. In 1908, he was awarded the Nobel Prize in Physiology/Medicine for his findings, which laid the foundations for today's understanding of the innate immune response. Only in the 1960s, Max Cooper and Robert Good significantly advanced our understanding of the immune system by demonstrating that B- and T-cells cooperate to regulate the adaptive immune response. Both, innate and adaptive immune response are essential to effectively protect the individual against infectious agents, such as viruses, bacterial or insect toxins, or allergens. Innate immune responses occur rapidly upon exposure to noxious or infectious agents or organisms, in contrast to the adaptive immune system that needs days rather than hours to develop and acts primarily on the basis of antigen-specific receptors expressed on the surface of B- and T-lymphocytes. In recent years, it has become evident that endosomes and lysosomes are involved in many aspects of immune cell function, such as phagocytosis, antigen presentation and processing by antigen-presenting cells, release of proinflammatory mediators, e.g., by mast cells, or secretion of the pore-forming protein perforin by cytotoxic T lymphocytes. Several lysosomal storage disorders (LSDs) have been associated with defects in immune system function or immune system hyperactivity, such as Gaucher, Fabry, or Niemann-Pick type C1 disease, mucopolysaccharidoses (MPS), gangliosidosis, or juvenile neuronal ceroid lipofuscinosis (JNCL). Beside accumulating evidence on the importance of endolysosomes in immune cell function, recent results suggest direct roles of endolysosomal ion channels, such as the TRPML channels (mucolipins), which are members of the transient receptor potential (TRP) superfamily of non-selective cation channels, for different aspects of immune cell function. The aim of this review is to discuss the current knowledge about the roles of TRPML channels in inflammation and immunity, and to assess their potential as drug targets to influence immune cell functions. Advances: Examples of recently established roles of TRPML channels in immune system function and immune response include the TRPML1-mediated modulation of secretory lysosomes, granzyme B content, and tuning of effector function in NK cells, TRPML1-dependent directional dendritic cell (DC) migration and DC chemotaxis, and the role of TRPML2 in chemokine release from LPS-stimulated macrophages. Outlook: Although our understanding of the functional roles of TRPML channels in inflammation and immunity is still in its infancy, a few interesting findings have been made in the past years, encouraging further and more detailed work on the role of TRPMLs, e.g., in intracellular trafficking and release of chemokines, cytokines, or granzyme B, or in phagocytosis and bacterial toxin and virus trafficking through the endolysosomal machinery.
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Affiliation(s)
- Barbara Spix
- Faculty of Medicine, Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Yu-Kai Chao
- Faculty of Medicine, Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Carla Abrahamian
- Faculty of Medicine, Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Cheng-Chang Chen
- Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität, Munich, Germany
| | - Christian Grimm
- Faculty of Medicine, Walther Straub Institute of Pharmacology and Toxicology, Ludwig-Maximilians-Universität, Munich, Germany
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30
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Alsaleh NB, Brown JM. Engineered Nanomaterials and Type I Allergic Hypersensitivity Reactions. Front Immunol 2020; 11:222. [PMID: 32117324 PMCID: PMC7033602 DOI: 10.3389/fimmu.2020.00222] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Accepted: 01/27/2020] [Indexed: 12/16/2022] Open
Abstract
Type I allergic hypersensitivity disorders (atopy) including asthma, atopic dermatitis, allergic rhinitis, and food allergy are on the rise in developed and developing countries. Engineered nanomaterials (ENMs) span a large spectrum of material compositions including carbonic, metals, polymers, lipid-based, proteins, and peptides and are being utilized in a wide range of industries including healthcare and pharmaceuticals, electronics, construction, and food industry, and yet, regulations for the use of ENMs in consumer products are largely lacking. Prior evidence has demonstrated the potential of ENMs to induce and/or aggravate type I allergic hypersensitivity responses. Furthermore, previous studies have shown that ENMs could directly interact with and activate key T-helper 2 (Th2) effector cell types (such as mast cells) and the complement system, which could result in pseudoallergic (non-IgE-mediated) hypersensitivity reactions. Nevertheless, the underlying molecular mechanisms of ENM-mediated induction and/or exacerbation of type I immune responses are poorly understood. In this review, we first highlight key examples of studies that have demonstrated inherent immunomodulatory properties of ENMs in the context of type I allergic hypersensitivity reactions, and most importantly, we attempt to put together the potential molecular mechanisms that could drive ENM-mediated stimulation and/or aggravation of type I allergic hypersensitivity responses.
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Affiliation(s)
- Nasser B Alsaleh
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Jared M Brown
- Department of Pharmaceutical Sciences, Colorado Center for Nanomedicine and Nanosafety, Skaggs School of Pharmacy and Pharmaceutical Sciences, The University of Colorado Anschutz Medical Campus, Aurora, CO, United States
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31
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Tang L, Cai D, Qin M, Lu S, Hu MH, Ruan S, Jin G, Wang Z. Oxaliplatin-Based Platinum(IV) Prodrug Bearing Toll-like Receptor 7 Agonist for Enhanced Immunochemotherapy. ACS OMEGA 2020; 5:726-734. [PMID: 31956823 PMCID: PMC6964279 DOI: 10.1021/acsomega.9b03381] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/19/2019] [Indexed: 06/08/2023]
Abstract
A combination of platinum drugs with immunotherapy has shown promising anticancer effects, especially in the drug resistance cancer model. Herein, a new type of immunochemotherapeutic was designed by tethering the toll-like receptor 7 (TLR7) agonist on the axial position of oxaliplatin-based platinum(IV) prodrug. The prodrug simultaneously induced immunogenic cell death of 4T1 cancer cells to initiate an immune response and activate dendritic cells (DCs) to secrete proinflammatory cytokines including interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and IL-12, to further enhance the adaptive immunity. The prodrug exhibited better in vivo anticancer effects than oxaliplatin in the 4T1 allograft mouse model, a later stage breast cancer model, which showed poor response to traditional chemotherapy. Mechanism studies revealed that enhanced activation of cytotoxic T cells within tumor contribute to the high in vivo anticancer efficiency of the prodrug. Moreover, the prodrug displayed much lower cytotoxicity to DCs compared with oxaliplatin, indicating its safety to normal cells. These results highlight the potential of the conjugation of TLR7 agonist with oxaliplatin-based Pt(IV) prodrug as an effective anticancer agent to overcome the toxic side effects and drug resistance of traditional platinum chemotherapy.
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Affiliation(s)
- Li Tang
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
| | - Demin Cai
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
| | - Mian Qin
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
| | - Shuo Lu
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
| | - Ming-Hao Hu
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
| | - Shuangchen Ruan
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
| | - Guangyi Jin
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
| | - Zhigang Wang
- School
of Pharmaceutical Sciences, Health Science Center, Key Laboratory of
Optoelectronic Devices and Systems of Ministry of Education and Guangdong
Province, College of Optoelectronic Engineering, International Cancer Center, Health
Science Center, and The National-Regional Engineering Lab for Synthetic Biology of Medicine,
Health Science Center, Shenzhen University, Shenzhen 518060, P. R. China
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32
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Molecular Mechanisms of Inhibitor Development in Hemophilia. Mediterr J Hematol Infect Dis 2020; 12:e2020001. [PMID: 31934311 PMCID: PMC6951349 DOI: 10.4084/mjhid.2020.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 11/10/2019] [Indexed: 11/25/2022] Open
Abstract
The development of neutralizing antibodies in hemophilia is a serious complication of factor replacement therapy. These antibodies, also known as “inhibitors”, significantly increase morbidity within the hemophilia population and lower the quality of life for these patients. People with severe hemophilia A have an overall 25–40% lifetime risk of inhibitor development, compared to that of 5–15% lifetime risk in those with moderate/mild hemophilia A. The risk is lower in hemophilia B population (about 1–5%) and occurrence of inhibitors is almost only seen in patients with severe hemophilia B. The understanding of the pathophysiological mechanism leading to the development of inhibitors in patients with hemophilia has improved considerably over the last 2 decades. Identification of early biomarkers which predict inhibitor development in previously untreated patients with hemophilia will assist in risk identification and possible early intervention strategies. In this review, we aim to summarize the molecular mechanisms of inhibitor development in hemophilia and to identify potential areas in need of further investigation.
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33
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AI-powered transmitted light microscopy for functional analysis of live cells. Sci Rep 2019; 9:18428. [PMID: 31804589 PMCID: PMC6895055 DOI: 10.1038/s41598-019-54961-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 11/15/2019] [Indexed: 12/12/2022] Open
Abstract
Transmitted light microscopy can readily visualize the morphology of living cells. Here, we introduce artificial-intelligence-powered transmitted light microscopy (AIM) for subcellular structure identification and labeling-free functional analysis of live cells. AIM provides accurate images of subcellular organelles; allows identification of cellular and functional characteristics (cell type, viability, and maturation stage); and facilitates live cell tracking and multimodality analysis of immune cells in their native form without labeling.
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34
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Trypanosoma cruzi Mexican Strains Differentially Modulate Surface Markers and Cytokine Production in Bone Marrow-Derived Dendritic Cells from C57BL/6 and BALB/c Mice. Mediators Inflamm 2019; 2019:7214798. [PMID: 31636507 PMCID: PMC6766131 DOI: 10.1155/2019/7214798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 06/08/2019] [Accepted: 07/29/2019] [Indexed: 12/15/2022] Open
Abstract
Dendritic cells (DCs) are a type of antigen-presenting cells that play an important role in the immune response against Trypanosoma cruzi, the causative agent of Chagas disease. In vitro and in vivo studies have shown that the modulation of these cells by this parasite can directly affect the innate and acquired immune response of the host in order to facilitate its biological cycle and the spreading of the species. Many studies show the mechanisms by which T. cruzi modulates DCs, but the interaction of these cells with the Mexican strains of T. cruzi such as Ninoa and INC5 has not yet been properly investigated. Here, we evaluated whether Ninoa and INC5 strains evaded the immunity of their hosts by modulating the biology and function of murine DCs. The CL-Brener strain was used as the reference strain. Herein, it was demonstrated that Ninoa was more infective toward bone marrow-derived dendritic cells (BMDCs) than INC5 and CL-Brener strains in both BMDCs of BALB/c and C57BL/6 mice. Mexican strains of T. cruzi induced different cytokine patterns. In BMDCs obtained from BALB/c mice, Ninoa strain led to the reduction in IL-6 and increased IL-10 production, while in C57BL/6 mice Ninoa strain considerably increased the productions of TNF-α and IL-10. Also, Ninoa and INC5 differentially modulated BMDC expressions of MHC-II, TLR2, and TLR4 in both BALB/c and C57BL/6 mice compared to Brazilian strain CL-Brener. These results indicate that T. cruzi Mexican strains differentially infect and modulate MHC-II, toll-like receptors, and cytokine production in DCs obtained from C57BL/6 and BALB/c mice, suggesting that these strains have developed particular modulatory strategies to disrupt DCs and, consequently, the host immune responses.
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35
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Buckley PR, Alden K, Coccia M, Chalon A, Collignon C, Temmerman ST, Didierlaurent AM, van der Most R, Timmis J, Andersen CA, Coles MC. Application of Modeling Approaches to Explore Vaccine Adjuvant Mode-of-Action. Front Immunol 2019; 10:2150. [PMID: 31572370 PMCID: PMC6751289 DOI: 10.3389/fimmu.2019.02150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 08/27/2019] [Indexed: 01/12/2023] Open
Abstract
Novel adjuvant technologies have a key role in the development of next-generation vaccines, due to their capacity to modulate the duration, strength and quality of the immune response. The AS01 adjuvant is used in the malaria vaccine RTS,S/AS01 and in the licensed herpes-zoster vaccine (Shingrix) where the vaccine has proven its ability to generate protective responses with both robust humoral and T-cell responses. For many years, animal models have provided insights into adjuvant mode-of-action (MoA), generally through investigating individual genes or proteins. Furthermore, modeling and simulation techniques can be utilized to integrate a variety of different data types; ranging from serum biomarkers to large scale “omics” datasets. In this perspective we present a framework to create a holistic integration of pre-clinical datasets and immunological literature in order to develop an evidence-based hypothesis of AS01 adjuvant MoA, creating a unified view of multiple experiments. Furthermore, we highlight how holistic systems-knowledge can serve as a basis for the construction of models and simulations supporting exploration of key questions surrounding adjuvant MoA. Using the Systems-Biology-Graphical-Notation, a tool for graphical representation of biological processes, we have captured high-level cellular behaviors and interactions, and cytokine dynamics during the early immune response, which are substantiated by a series of diagrams detailing cellular dynamics. Through explicitly describing AS01 MoA we have built a consensus of understanding across multiple experiments, and so we present a framework to integrate modeling approaches into exploring adjuvant MoA, in order to guide experimental design, interpret results and inform rational design of vaccines.
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Affiliation(s)
- Paul R Buckley
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom.,Department of Electronic Engineering, University of York, York, United Kingdom
| | - Kieran Alden
- Department of Electronic Engineering, University of York, York, United Kingdom
| | | | | | | | | | | | | | - Jon Timmis
- Department of Electronic Engineering, University of York, York, United Kingdom.,Faculty of Technology, University of Sunderland, Sunderland, United Kingdom
| | | | - Mark C Coles
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
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36
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Lee SJ, Gharbi A, You JS, Han HD, Kang TH, Hong SH, Park WS, Jung ID, Park YM. Drug repositioning of TANK-binding kinase 1 inhibitor CYT387 as an alternative for the treatment of Gram-negative bacterial sepsis. Int Immunopharmacol 2019; 73:482-490. [DOI: 10.1016/j.intimp.2019.05.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/27/2019] [Accepted: 05/27/2019] [Indexed: 12/13/2022]
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37
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Xu Z, Lin Z, Wei N, Di Q, Cao J, Zhou Y, Gong H, Zhang H, Zhou J. Immunomodulatory effects of Rhipicephalus haemaphysaloides serpin RHS2 on host immune responses. Parasit Vectors 2019; 12:341. [PMID: 31296257 PMCID: PMC6624921 DOI: 10.1186/s13071-019-3607-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 07/08/2019] [Indexed: 02/06/2023] Open
Abstract
Background Rhipicephalus haemaphysaloides is a widespread tick species in China and other South East Asian countries, where it is the vector of many pathogens. The objective of this study was to study the role of serpin (serine protease inhibitor) during the tick-host interaction. Methods The differentiation of bone marrow-derived dendritic cells (BMDC) was induced in vitro, and the effect of RHS2 on the maturation of DCs was evaluated. The effects of RHS2 on T cell activation and cytotoxic T lymphocytes’ (CTLs) activity were analyzed by flow cytometry. Antibody subtypes after immunization of mice with RHS2 and OVA were determined. Results RHS2 can inhibit the differentiation of bone marrow-derived cells into DCs and promote their differentiation into macrophages. RHS2 can inhibit the maturation of DCs and the expression of CD80, CD86 and MHCII. The number of CD3+CD4+ and CD3+CD8+ T cells secreting IFN-γ, IL-2 and TNF-α was decreased, and the number of CD3+CD4+ T cells secreting IL-4 was increased, indicating that RHS2 can inhibit the activation of CD4 T cells and CD8 T cells, leading to inhibition of Th1 immune response. RHS2 inhibits the elimination of target cells by cytotoxic T lymphocytes. After immunization of mice with RHS2 and OVA, serum IgG2b was significantly reduced and IgM was increased. Conclusions The results show that RHS2 has an inhibitory effect on the host immune response. Ticks have evolved various ways to circumvent adaptive immunity. Their serpin inhibits BMDC differentiation to reduce immune responses.
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Affiliation(s)
- Zhengmao Xu
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Zhibing Lin
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Nana Wei
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Qing Di
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Jie Cao
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Yongzhi Zhou
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Haiyan Gong
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Houshuang Zhang
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Jinlin Zhou
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China.
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38
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A Characterization of Dendritic Cells and Their Role in Immunotherapy in Glioblastoma: From Preclinical Studies to Clinical Trials. Cancers (Basel) 2019; 11:cancers11040537. [PMID: 30991681 PMCID: PMC6521200 DOI: 10.3390/cancers11040537] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/08/2019] [Accepted: 04/12/2019] [Indexed: 12/25/2022] Open
Abstract
Glioblastoma (GBM) is the most common and fatal primary central nervous system malignancy in adults with a median survival of less than 15 months. Surgery, radiation, and chemotherapy are the standard of care and provide modest benefits in survival, but tumor recurrence is inevitable. The poor prognosis of GBM has made the development of novel therapies targeting GBM of paramount importance. Immunotherapy via dendritic cells (DCs) has garnered attention and research as a potential strategy to boost anti-tumor immunity in recent years. As the “professional” antigen processing and presenting cells, DCs play a key role in the initiation of anti-tumor immune responses. Pre-clinical studies in GBM have shown long-term tumor survival and immunological memory in murine models with stimulation of DC activity with various antigens and costimulatory molecules. Phase I and II clinical trials of DC vaccines in GBM have demonstrated some efficacy in improving the median overall survival with minimal to no toxicity with promising initial results from the first Phase III trial. However, there remains no standardization of vaccines in terms of which antigens are used to pulse DCs ex vivo, sites of DC injection, and optimal adjuvant therapies. Future work with DC vaccines aims to elucidate the efficacy of DC-based therapy alone or in combination with other immunotherapy adjuvants in additional Phase III trials.
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39
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Snyder JP, Amiel E. Regulation of Dendritic Cell Immune Function and Metabolism by Cellular Nutrient Sensor Mammalian Target of Rapamycin (mTOR). Front Immunol 2019; 9:3145. [PMID: 30692999 PMCID: PMC6339945 DOI: 10.3389/fimmu.2018.03145] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 12/19/2018] [Indexed: 12/13/2022] Open
Abstract
Dendritic cell (DC) activation is characterized by an acute increase in glucose metabolic flux that is required to fuel the high anabolic rates associated with DC activation. Inhibition of glycolysis significantly attenuates most aspects of DC immune effector function including antigen presentation, inflammatory cytokine production, and T cell stimulatory capacity. The cellular nutrient sensor mammalian/mechanistic Target of Rapamycin (mTOR) is an important upstream regulator of glycolytic metabolism and plays a central role in coordinating DC metabolic changes and immune responses. Because mTOR signaling can be activated by a variety of immunological stimuli, including signaling through the Toll-like Receptor (TLR) family of receptors, mTOR is involved in orchestrating many aspects of the DC metabolic response to microbial stimuli. It has become increasingly clear that mTOR's role in promoting or attenuating inflammatory processes in DCs is highly context-dependent and varies according to specific cellular subsets and the immunological conditions being studied. This review will address key aspects of the complex role of mTOR in regulating DC metabolism and effector function.
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Affiliation(s)
- Julia P Snyder
- Predoctoral student of the Cellular, Molecular, and Biomedical (CMB) Sciences Graduate Program at the University of Vermont, Burlington, VT, United States
| | - Eyal Amiel
- Department of Biomedical and Health Sciences, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, United States
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40
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Santos-Zas I, Lemarié J, Tedgui A, Ait-Oufella H. Adaptive Immune Responses Contribute to Post-ischemic Cardiac Remodeling. Front Cardiovasc Med 2019; 5:198. [PMID: 30687720 PMCID: PMC6335242 DOI: 10.3389/fcvm.2018.00198] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/21/2018] [Indexed: 12/14/2022] Open
Abstract
Myocardial infarction (MI) is a common condition responsible for mortality and morbidity related to ischemic heart failure. Accumulating experimental and translational evidence support a crucial role for innate immunity in heart failure and adverse heart remodeling following MI. More recently, the role of adaptive immunity in myocardial ischemia has been identified, mainly in rodents models of both transient and permanent heart ischemia. The present review summarizes the experimental evidence regarding the role of lymphocytes and dendritic cells in myocardial remodeling following coronary artery occlusion. Th1 and potentially Th17 CD4+ T cell responses promote adverse heart remodeling, whereas regulatory T cells appear to be protective, modulating macrophage activity, cardiomyocyte survival, and fibroblast phenotype. The role of CD8+ T cells in this setting remains unknown. B cells contribute to adverse cardiac remodeling through the modulation of monocyte trafficking, and potentially the production of tissue-specific antibodies. Yet, further substantial efforts are still required to confirm experimental data in human MI before developing new therapeutic strategies targeting the adaptive immune system in ischemic cardiac diseases.
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Affiliation(s)
- Icia Santos-Zas
- INSERM UMR-S 970, Sorbonne Paris Cité, Paris Cardiovascular Research Center - PARCC, Université Paris Descartes, Paris, France
| | - Jérémie Lemarié
- INSERM UMR-S 970, Sorbonne Paris Cité, Paris Cardiovascular Research Center - PARCC, Université Paris Descartes, Paris, France.,UMR_S 1116, Université de Lorraine, Inserm, DCAC, Centre Hospitalier Régional Universitaire de Nancy - Réanimation Médicale - Hôpital Central, Nancy, France
| | - Alain Tedgui
- INSERM UMR-S 970, Sorbonne Paris Cité, Paris Cardiovascular Research Center - PARCC, Université Paris Descartes, Paris, France
| | - Hafid Ait-Oufella
- INSERM UMR-S 970, Sorbonne Paris Cité, Paris Cardiovascular Research Center - PARCC, Université Paris Descartes, Paris, France.,AP-HP (Assistance Publique-Hôpitaux de Paris), Hôpital Saint-Antoine, Sorbonne Université, Paris, France
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41
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Alonso F, Spuul P, Kramer IJ, Génot E. [Variations on the theme of podosomes, context matters]. Med Sci (Paris) 2019; 34:1063-1070. [PMID: 30623771 DOI: 10.1051/medsci/2018296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Podosomes are actin-based microdomains connecting the cell with its extracellular matrix. Contractile actin-myosin cables assemble them into a network that constitutes a versatile cellular superstructure. Discovered and extensively described in in vitro conditions, podosomes now appear as major actors of specific physiological processes. They share common characteristics but their morphology and their effect on cell functioning can only be apprehended in specific cellular contexts. We focus here on three cellular processes involving podosomes and discuss their properties in context.
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Affiliation(s)
- Florian Alonso
- Centre de recherche cardio-thoracique de Bordeaux (Inserm U1045), Université de Bordeaux, Bordeaux Cedex, F-33076 France
| | - Pirjo Spuul
- Department of chemistry and biotechnology, division of gene technology, Tallinn University of Technology, 12618 Tallinn, Estonie
| | - IJsbrand Kramer
- Centre de recherche cardio-thoracique de Bordeaux (Inserm U1045), Université de Bordeaux, Bordeaux Cedex, F-33076 France
| | - Elisabeth Génot
- Centre de recherche cardio-thoracique de Bordeaux (Inserm U1045), Université de Bordeaux, Bordeaux Cedex, F-33076 France
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42
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Alonso F, Spuul P, Daubon T, Kramer IJ, Génot E. Variations on the theme of podosomes: A matter of context. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:545-553. [PMID: 30594495 DOI: 10.1016/j.bbamcr.2018.12.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/15/2018] [Accepted: 12/18/2018] [Indexed: 12/22/2022]
Abstract
Extensive in vitro studies have described podosomes as actin-based structures at the plasma membrane, connecting the cell with its extracellular matrix and endowed with multiple capabilities. Contractile actin-myosin cables assemble them into a network that constitutes a multifaceted cellular superstructure taking different forms - with common characteristics - but manifesting different properties depending on the context of study. Their morphology and their role in cell functioning and behavior are therefore now apprehended in in vivo or in vitro situations relevant to physiological processes. We focus here on three of them, namely: macrophage migration, antigen presentation by dendritic cells and endothelial cell sprouting during angiogenesis to highlight the characteristics of podosomes and their functioning shaped by the microenvironment.
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Affiliation(s)
- Florian Alonso
- Centre de Recherche Cardio-Thoracique de Bordeaux (INSERM U1045), Université de Bordeaux, Bordeaux F-33076 Cedex, France
| | - Pirjo Spuul
- Department of Chemistry and Biotechnology, Division of Gene Technology, Tallinn University of Technology, 12618 Tallinn, Estonia
| | - Thomas Daubon
- Laboratoire de l'Angiogénèse et du Microenvironnement des Cancers (INSERM U1029), Université de Bordeaux, Bordeaux F-33076 Cedex, France
| | - IJsbrand Kramer
- Centre de Recherche Cardio-Thoracique de Bordeaux (INSERM U1045), Université de Bordeaux, Bordeaux F-33076 Cedex, France
| | - Elisabeth Génot
- Centre de Recherche Cardio-Thoracique de Bordeaux (INSERM U1045), Université de Bordeaux, Bordeaux F-33076 Cedex, France.
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Bell K, Und Hohenstein-Blaul NVT, Teister J, Grus F. Modulation of the Immune System for the Treatment of Glaucoma. Curr Neuropharmacol 2018; 16:942-958. [PMID: 28730968 PMCID: PMC6120111 DOI: 10.2174/1570159x15666170720094529] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 05/17/2017] [Accepted: 07/18/2017] [Indexed: 12/20/2022] Open
Abstract
Background: At present intraocular pressure (IOP) lowering therapies are the only approach to treat glaucoma. Neuroprotective strategies to protect the retinal ganglion cells (RGC) from apoptosis are lacking to date. Substantial amount of research concerning the role of the immune system in glaucoma has been performed in the recent years. This review aims to analyse changes found in the peripheral immune system, as well as selected local changes of retina immune cells in the glaucomatous retina. Methods: By dividing the immune system into the innate and the adaptive immune system, a systematic literature research was performed to find recent approaches concerning the modulation of the immune system in the context of glaucoma. Also ClinicalTrials.gov was assessed to identify studies with a translational context. Results: We found that some aspects of the immune system, such as changes in antibody levels, changes in toll like receptor signalling, T cells and retinal microglial cells, experience more research activity than other areas such as changes in dendritic cells or macrophages. Briefly, results from clinical studies revealed altered immunoreactivities against retinal and optic nerve antigens in sera and aqueous humor of glaucoma patients and point toward an autoimmune involvement in glaucomatous neurodegeneration and RGC death. IgG accumulations along with plasma cells were found localised in human glaucomatous retinae in a pro-inflammatory environment possibly maintained by microglia. Animal studies show that antibodies (e.g. anti- heat shock protein 60 and anti-myelin basic protein) elevated in glaucoma patients provoke autoaggressive RGC loss and are associated with IgG depositions and increased microglial cells. Also, studies addressing changes in T lymphocytes, macrophages but also local immune responses in the retina have been performed and also hold promising results. Conclusions: This recapitulation of recent literature demonstrates that the immune system definitely plays a role in the pathogenesis of glaucoma. Multiple changes in the peripheral innate as well as adaptive immune system have been detected and give room for further research concerning valuable therapeutic targets. We conclude that there still is a great need to bring together the results derived from basic research analysing different aspects of the immune system in glaucoma to understand the immune context of the disease. Furthermore local immune changes in the retina of glaucoma patients still leave room for further therapeutic targets
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Affiliation(s)
- Katharina Bell
- Experimental and Translational Ophthalmology Mainz, Department of Ophthalmology, Medical Center of the Johannes Gutenberg University Mainz; Langenbeckstrasse 1, 55101 Mainz, Germany
| | - Nadine von Thun Und Hohenstein-Blaul
- Experimental and Translational Ophthalmology Mainz, Department of Ophthalmology, Medical Center of the Johannes Gutenberg University Mainz; Langenbeckstrasse 1, 55101 Mainz, Germany
| | - Julia Teister
- Experimental and Translational Ophthalmology Mainz, Department of Ophthalmology, Medical Center of the Johannes Gutenberg University Mainz; Langenbeckstrasse 1, 55101 Mainz, Germany
| | - Franz Grus
- Experimental and Translational Ophthalmology Mainz, Department of Ophthalmology, Medical Center of the Johannes Gutenberg University Mainz; Langenbeckstrasse 1, 55101 Mainz, Germany
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Yasar H, Biehl A, De Rossi C, Koch M, Murgia X, Loretz B, Lehr CM. Kinetics of mRNA delivery and protein translation in dendritic cells using lipid-coated PLGA nanoparticles. J Nanobiotechnology 2018; 16:72. [PMID: 30231888 PMCID: PMC6145106 DOI: 10.1186/s12951-018-0401-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 09/15/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Messenger RNA (mRNA) has gained remarkable attention as an alternative to DNA-based therapies in biomedical research. A variety of biodegradable nanoparticles (NPs) has been developed including lipid-based and polymer-based systems for mRNA delivery. However, both systems still lack in achieving an efficient transfection rate and a detailed understanding of the mRNA transgene expression kinetics. Therefore, quantitative analysis of the time-dependent translation behavior would provide a better understanding of mRNA's transient nature and further aid the enhancement of appropriate carriers with the perspective to generate future precision nanomedicines with quick response to treat various diseases. RESULTS A lipid-polymer hybrid system complexed with mRNA was evaluated regarding its efficiency to transfect dendritic cells (DCs) by simultaneous live cell video imaging of both particle uptake and reporter gene expression. We prepared and optimized NPs consisting of poly (lactid-co-glycolid) (PLGA) coated with the cationic lipid 1, 2-di-O-octadecenyl-3-trimethylammonium propane abbreviated as LPNs. An earlier developed polymer-based delivery system (chitosan-PLGA NPs) served for comparison. Both NPs types were complexed with mRNA-mCherry at various ratios. While cellular uptake and toxicity of either NPs was comparable, LPNs showed a significantly higher transfection efficiency of ~ 80% while chitosan-PLGA NPs revealed only ~ 5%. Further kinetic analysis elicited a start of protein translation after 1 h, with a maximum after 4 h and drop of transgene expression after 48 h post-transfection, in agreement with the transient nature of mRNA. CONCLUSIONS Charge-mediated complexation of mRNA to NPs enables efficient and fast cellular delivery and subsequent protein translation. While cellular uptake of both NP types was comparable, mRNA transgene expression was superior to polymer-based NPs when delivered by lipid-polymer NPs.
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Affiliation(s)
- Hanzey Yasar
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Alexander Biehl
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany
- Center for Bioinformatics, Saarland Informatics Campus, Saarland University, 66123 Saarbrücken, Germany
| | - Chiara De Rossi
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany
| | - Marcus Koch
- INM-Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
| | - Xabi Murgia
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Brigitta Loretz
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany
| | - Claus-Michael Lehr
- Department of Drug Delivery (DDEL), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
- Center for Bioinformatics, Saarland Informatics Campus, Saarland University, 66123 Saarbrücken, Germany
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Ito H, Nishio Y, Hara T, Sugihara H, Tanaka T, Li XK. Oral administration of 5-aminolevulinic acid induces heme oxygenase-1 expression in peripheral blood mononuclear cells of healthy human subjects in combination with ferrous iron. Eur J Pharmacol 2018; 833:25-33. [DOI: 10.1016/j.ejphar.2018.05.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 12/23/2022]
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Kim WS, Shin MK, Shin SJ. MAP1981c, a Putative Nucleic Acid-Binding Protein, Produced by Mycobacterium avium subsp. paratuberculosis, Induces Maturation of Dendritic Cells and Th1-Polarization. Front Cell Infect Microbiol 2018; 8:206. [PMID: 29977867 PMCID: PMC6021526 DOI: 10.3389/fcimb.2018.00206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/05/2018] [Indexed: 12/23/2022] Open
Abstract
Mycobacterium avium subsp. paratuberculosis (MAP) is the causative pathogen of chronic granulomatous enteropathy (Johne's disease) in animals, and has been focused on its association with various autoimmune diseases in humans, including Crohn's disease. The discovery of novel mycobacterial antigens and exploring their role in host immunity can contribute to the advancement of effective defense strategies including vaccines and diagnostic tools. In a preliminary study, we identified cellular extract proteins of MAP that strongly react with the blood of patients with Crohn's disease. In particular, MAP1981c, a putative nucleic acid-binding protein, showed high expression levels and strong reactivity to IgG and IgM in the sera of patients. Here, we investigated the immunological features of MAP1981c and focused on its interaction with dendritic cells (DCs), confirming its immunomodulatory ability. MAP1981c was shown to recognize Toll-like receptor (TLR) 4, and induce DC maturation and activation by increasing the expression of co-stimulatory (CD80 and CD86) and MHC class I/II molecules and the secretion of pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α) in DCs. This DC activation by MAP1981c was mediated by downstream signaling of TLR4 via MyD88- and TRIF-, MAP kinase-, and NF-κB-dependent signaling pathways. In addition, MAP1981c-treated DCs activated naïve T cells and induced the differentiation of CD4+ and CD8+ T cells to express T-bet, IFN-γ, and/or IL-2, but not GATA-3 and IL-4, thus indicating that MAP1981c contributes to Th1-type immune responses both in vitro and in vivo. Taken together, these results suggest that MAP1981c is a novel immunocompetent antigen that induces DC maturation and a Th1-biased response upon DC activation, suggesting that MAP1981c can be an effective vaccine and diagnostic target.
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Affiliation(s)
- Woo Sik Kim
- Department of Microbiology and Institute for Immunology and Immunological Diseases, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.,Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, South Korea
| | - Min-Kyoung Shin
- Department of Microbiology, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, South Korea
| | - Sung Jae Shin
- Department of Microbiology and Institute for Immunology and Immunological Diseases, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
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Guo F, Ding Y, Yu X, Cai X. Effect of dexmedetomidine, midazolam, and propofol on lipopolysaccharide-stimulated dendritic cells. Exp Ther Med 2018; 15:5487-5494. [PMID: 29904429 DOI: 10.3892/etm.2018.6094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 03/09/2018] [Indexed: 12/17/2022] Open
Abstract
Dexmedetomidine, midazolam and propofol are common sedative drugs used in the intensive care unit. Lipopolysaccharides (LPS) are a potent inducer of human dendritic cells (DCs) maturation and survival, which induces cytokine production. The present study aimed to investigate the effect and mechanisms of sedative drugs on LPS-induced cytokine production in DCs. The mouse bone marrow-derived dendritic DC2.4 cell line was used in the present study. The Cell Counting Kit-8 assay was used to measure the viability of cells. Tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, and IL-10 mRNA expression levels and contents were measured using reverse transcription-quantitative polymerase chain reaction and ELISA, respectively. The expression levels of proteins associated with nuclear factor-κB (NF-κB) and mitogen activated protein kinase signaling pathways were assessed by western blotting. The three sedatives had different roles on TNF-α, IL-1β, IL-6, and IL-10 mRNA expression levels and content in DCs. Dexmedetomidine promoted inflammatory cytokine production at high clinical concentrations (10, 1 and 0.1 µM), however suppressed them at the lowest clinical concentration (0.001 µM), which was associated with NF-κB and c-Jun N-terminal kinase (JNK)-mitogen-activated protein kinase (MAPK) signaling. Midazolam inhibited inflammatory cytokine production via suppression of the NF-κB and JNK signaling pathways. Propofol partly inhibited inflammatory cytokine production, including IL-1β and IL-6, and the anti-inflammatory effect may result from inhibition of JNK-MAPK, and enhanced NF-κB and extracellular signal-regulated kinase-MAPK signaling at clinical concentrations. The present study helped to elucidate the function of sedatives in LPS-induced cytokine production in DCs, which will facilitate rational implementation of these sedatives in patients undergoing tracheal intubation with sepsis or multiple organ dysfunction syndrome.
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Affiliation(s)
- Feng Guo
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Ying Ding
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital Xiasha Campus, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Xue Yu
- Department of Medicine, Tengzhou Central People's Hospital, Zaozhuang, Shandong 277500, P.R. China
| | - Xiujun Cai
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
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Leng RA. Unravelling methanogenesis in ruminants, horses and kangaroos: the links between gut anatomy, microbial biofilms and host immunity. ANIMAL PRODUCTION SCIENCE 2018. [DOI: 10.1071/an15710] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The present essay aims to resolve the question as to why macropod marsupials (e.g. kangaroos and wallabies, hereinafter termed ‘macropods) and horses produce much less methane (CH4) than do ruminants when digesting the same feed. In herbivores, gases produced during fermentation of fibrous feeds do not pose a major problem in regions of the gut that have mechanisms to eliminate them (e.g. eructation in the rumen and flatus in the lower bowel). In contrast, gas pressure build-up in the tubiform forestomach of macropods or in the enlarged tubiform caecum of equids would be potentially damaging. It is hypothesised that, to prevent this problem, evolution has favoured development of controls over gut microbiota that enable enteric gas production (H2 and CH4) to be differently regulated in the forestomach of macropods and the caecum of all three species, from the forestomach of ruminants. The hypothesised regulation depends on interactions between their gut anatomy and host-tissue immune responses that have evolved to modify the species composition of their gut microbiota which, importantly, are mainly in biofilms. Obligatory H2 production during forage fermentation is, thus, captured in CH4 in the ruminant where ruminal gases are readily released by eructation, or in acetate in the macropod forestomach and equid caecum–colon where a build-up in gas pressure could potentially damage these organs. So as to maintain appropriate gut microbiota in different species, it is hypothesised that blind sacs at the cranial end of the haustral anatomy of the macropod forestomach and the equid caecum are sites of release of protobiofilm particles that develop in close association with the mucosal lymphoid tissues. These tissues release immune secretions such as antimicrobial peptides, immunoglobulins, innate lymphoid cells and mucin that eliminate or suppress methanogenic Archaea and support the growth of acetogenic microbiota. The present review draws on microbiological studies of the mammalian gut as well as other microbial environments. Hypotheses are advanced to account for published findings relating to the gut anatomy of herbivores and humans, the kinetics of digesta in ruminants, macropods and equids, and also the composition of biofilm microbiota in the human gut as well as aquatic and other environments where the microbiota exist in biofilms.
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Selleri S, Bifsha P, Civini S, Pacelli C, Dieng MM, Lemieux W, Jin P, Bazin R, Patey N, Marincola FM, Moldovan F, Zaouter C, Trudeau LE, Benabdhalla B, Louis I, Beauséjour C, Stroncek D, Le Deist F, Haddad E. Human mesenchymal stromal cell-secreted lactate induces M2-macrophage differentiation by metabolic reprogramming. Oncotarget 2017; 7:30193-210. [PMID: 27070086 PMCID: PMC5058674 DOI: 10.18632/oncotarget.8623] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 03/26/2016] [Indexed: 12/13/2022] Open
Abstract
Human mesenchymal stromal cells (MSC) have been shown to dampen immune response and promote tissue repair, but the underlying mechanisms are still under investigation. Herein, we demonstrate that umbilical cord-derived MSC (UC-MSC) alter the phenotype and function of monocyte-derived dendritic cells (DC) through lactate-mediated metabolic reprogramming. UC-MSC can secrete large quantities of lactate and, when present during monocyte-to-DC differentiation, induce instead the acquisition of M2-macrophage features in terms of morphology, surface markers, migratory properties and antigen presentation capacity. Microarray expression profiling indicates that UC-MSC modify the expression of metabolic-related genes and induce a M2-macrophage expression signature. Importantly, monocyte-derived DC obtained in presence of UC-MSC, polarize naïve allogeneic CD4+ T-cells into Th2 cells. Treatment of UC-MSC with an inhibitor of lactate dehydrogenase strongly decreases lactate concentration in culture supernatant and abrogates the effect on monocyte-to-DC differentiation. Metabolic analysis further revealed that UC-MSC decrease oxidative phosphorylation in differentiating monocytes while strongly increasing the spare respiratory capacity proportional to the amount of secreted lactate. Because both MSC and monocytes are recruited in vivo at the site of tissue damage and inflammation, we propose the local increase of lactate concentration induced by UC-MSC and the consequent enrichment in M2-macrophage generation as a mechanism to achieve immunomodulation.
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Affiliation(s)
- Silvia Selleri
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Microbiology, Infectiology and Immunology, University of Montreal, Montreal, QC, Canada
| | - Panojot Bifsha
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Microbiology, Infectiology and Immunology, University of Montreal, Montreal, QC, Canada
| | - Sara Civini
- Department of Transfusion Medicine, Clinical Center, NIH, Bethesda, MD, USA
| | - Consiglia Pacelli
- Department of Pharmacology, University of Montreal, Montreal, QC, Canada
| | - Mame Massar Dieng
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Biology, New York University, Abu Dhabi, United Arab Emirates
| | - William Lemieux
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Microbiology, Infectiology and Immunology, University of Montreal, Montreal, QC, Canada
| | - Ping Jin
- Department of Transfusion Medicine, Clinical Center, NIH, Bethesda, MD, USA
| | - Renée Bazin
- Department of Research and Development, Héma-Québec, Québec, QC, Canada
| | - Natacha Patey
- Department of Pathology, University of Montreal, Montreal, QC, Canada
| | - Francesco M Marincola
- Department of Transfusion Medicine, Clinical Center, NIH, Bethesda, MD, USA.,Sidra Medical and Research Center, Doha, Qatar
| | - Florina Moldovan
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Faculty of Dentistry, University of Montreal, Montreal, QC, Canada
| | | | - Louis-Eric Trudeau
- Department of Pharmacology, University of Montreal, Montreal, QC, Canada
| | | | - Isabelle Louis
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Pediatrics, University of Montreal, Montreal, QC, Canada
| | - Christian Beauséjour
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Pharmacology, University of Montreal, Montreal, QC, Canada
| | - David Stroncek
- Department of Transfusion Medicine, Clinical Center, NIH, Bethesda, MD, USA
| | - Françoise Le Deist
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Microbiology, Infectiology and Immunology, University of Montreal, Montreal, QC, Canada.,Department of Pediatrics, University of Montreal, Montreal, QC, Canada
| | - Elie Haddad
- CHU Sainte-Justine Research Center, Montreal, QC, Canada.,Department of Microbiology, Infectiology and Immunology, University of Montreal, Montreal, QC, Canada.,Department of Pediatrics, University of Montreal, Montreal, QC, Canada
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50
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Gaye A, Gibbons GH, Barry C, Quarells R, Davis SK. Influence of socioeconomic status on the whole blood transcriptome in African Americans. PLoS One 2017; 12:e0187290. [PMID: 29206834 PMCID: PMC5716587 DOI: 10.1371/journal.pone.0187290] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 10/17/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The correlation between low socioeconomic status (SES) and poor health outcome or higher risk of disease has been consistently reported by many epidemiological studies across various race/ancestry groups. However, the biological mechanisms linking low SES to disease and/or disease risk factors are not well understood and remain relatively under-studied. The analysis of the blood transcriptome is a promising window for elucidating how social and environmental factors influence the molecular networks governing health and disease. To further define the mechanistic pathways between social determinants and health, this study examined the impact of SES on the blood transcriptome in a sample of African-Americans. METHODS An integrative approach leveraging three complementary methods (Weighted Gene Co-expression Network Analysis, Random Forest and Differential Expression) was adopted to identify the most predictive and robust transcriptome pathways associated with SES. We analyzed the expression of 15079 genes (RNA-seq) from whole blood across 36 samples. RESULTS The results revealed a cluster of 141 co-expressed genes over-expressed in the low SES group. Three pro-inflammatory pathways (IL-8 Signaling, NF-κB Signaling and Dendritic Cell Maturation) are activated in this module and over-expressed in low SES. Random Forest analysis revealed 55 of the 141 genes that, collectively, predict SES with an area under the curve of 0.85. One third of the 141 genes are significantly over-expressed in the low SES group. CONCLUSION Lower SES has consistently been linked to many social and environmental conditions acting as stressors and known to be correlated with vulnerability to chronic illnesses (e.g. asthma, diabetes) associated with a chronic inflammatory state. Our unbiased analysis of the blood transcriptome in African-Americans revealed evidence of a robust molecular signature of increased inflammation associated with low SES. The results provide a plausible link between the social factors and chronic inflammation.
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Affiliation(s)
- Amadou Gaye
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States of America
- * E-mail:
| | - Gary H. Gibbons
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States of America
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States of America
| | - Charles Barry
- Brown University, Providence, RI, United States of America
| | - Rakale Quarells
- Community Health and Preventive Medicine, Cardiovascular Research Institute Morehouse School of Medicine, Atlanta, GA, United States of America
| | - Sharon K. Davis
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, United States of America
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