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Hu X, Zhang Z, Long L, Gu M, Chen W, Pan B, Wu X, Wang C, Li C, Zheng L, Sheng P. Deconvolution of synovial myeloid cell subsets across pathotypes and role of COL3A1+ macrophages in rheumatoid arthritis remission. Front Immunol 2024; 15:1307748. [PMID: 38601143 PMCID: PMC11005452 DOI: 10.3389/fimmu.2024.1307748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 03/08/2024] [Indexed: 04/12/2024] Open
Abstract
Background Monocyte/macrophage (Mo/Mp) is a critical cell population involved in immune modulation of rheumatoid synovitis (RA) across different pathotypes. This study aims to investigate the contribution of Mo/Mp clusters to RA activity, and the biological function of particular subtypes in RA remission. Methods We integrated single-cell RNA sequencing datasets from 4 published and 1 in-house studies using Liger selected by comparison. We estimated the abundance of Mo/Mp subtypes in bulk RNA-seq data from the 81 patients of the Pathobiology of Early Arthritis Cohort (PEAC) using deconvolution analysis. Correlations between Mo/Mp subtypes and RA clinical metrics were assessed. A particular cell type was identified using multicolor immunofluorescence and flow cytometry in vivo and successfully induced from a cell line in vitro. Potential immune modulation function of it was performed using immunohistochemical staining, adhesion assay, and RT-qPCR. Results We identified 8 Mo/Mp clusters. As a particular subtype among them, COL3A1+ Mp (CD68+, COL3A1+, ACTA2-) enriched in myeloid pathotype and negatively correlated with RA severity metrics in all pathotypes. Flow cytometry and multicolor immunofluorescence evidenced the enrichment and M2-like phenotype of COL3A1+ Mp in the myeloid pathotype. Further assays suggested that COL3A1+ Mp potentially attenuates RA severity via expressing anti-inflammatory cytokines, enhancing Mp adhesion, and forming a physical barrier at the synovial lining. Conclusion This study reported unexplored associations between different pathologies and myeloid cell subtypes. We also identified a fibroblast-and-M2-like cluster named COL3A1+ Mp, which potentially contributes to synovial immune homeostasis. Targeting the development of COL3A1+ Mp may hold promise for inducing RA remission.
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Affiliation(s)
- Xuantao Hu
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ziji Zhang
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lingli Long
- Research Center of Translational Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Minghu Gu
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Weishen Chen
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Baiqi Pan
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoyu Wu
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chao Wang
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chengxin Li
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Linli Zheng
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Puyi Sheng
- Department of Joint Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Jiang Y, Dai S, Pang R, Qin L, Zhang M, Liu H, Wang X, Zhang J, Peng G, Wang Y, Li W. Single-cell RNA sequencing reveals cell type-specific immune regulation associated with human neuromyelitis optica spectrum disorder. Front Immunol 2024; 15:1322125. [PMID: 38440735 PMCID: PMC10909925 DOI: 10.3389/fimmu.2024.1322125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
Introduction One rare type of autoimmune disease is called neuromyelitis optica spectrum disorder (NMOSD) and the peripheral immune characteristics of NMOSD remain unclear. Methods Here, single-cell RNA sequencing (scRNA-seq) is used to characterize peripheral blood mononuclear cells from individuals with NMOSD. Results The differentiation and activation of lymphocytes, expansion of myeloid cells, and an excessive inflammatory response in innate immunity are observed. Flow cytometry analyses confirm a significant increase in the percentage of plasma cells among B cells in NMOSD. NMOSD patients exhibit an elevated percentage of CD8+ T cells within the T cell population. Oligoclonal expansions of B cell receptors are observed after therapy. Additionally, individuals with NMOSD exhibit elevated expression of CXCL8, IL7, IL18, TNFSF13, IFNG, and NLRP3. Discussion Peripheral immune response high-dimensional single-cell profiling identifies immune cell subsets specific to a certain disease and identifies possible new targets for NMOSD.
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Affiliation(s)
- Yushu Jiang
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Shuhua Dai
- Department of Neurology, Zhoukou Central Hospital, Zhoukou, Henan, China
| | - Rui Pang
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lingzhi Qin
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Milan Zhang
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Huiqin Liu
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaojuan Wang
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jiewen Zhang
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Gongxin Peng
- Center for Bioinformatics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Yongchao Wang
- Department of Neurology, People’s Hospital of Yexian, Pingdingshan, Henan, China
| | - Wei Li
- Department of Neurology, Henan Joint International Research Laboratory Of Accurate Diagnosis, Treatment, Research And Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Palmieri EM, Salmond RJ, Menga A. Editorial: Understanding how myeloid cell development and function meet tissue distinct metabolic requirements. Front Immunol 2024; 15:1373468. [PMID: 38384453 PMCID: PMC10879609 DOI: 10.3389/fimmu.2024.1373468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 01/29/2024] [Indexed: 02/23/2024] Open
Affiliation(s)
- Erika M. Palmieri
- Cancer Innovation Laboratory, National Cancer Institute (NCI), Frederick, MD, United States
| | - Robert J. Salmond
- Leeds Institute of Medical Research at St James’s, University of Leeds, Leeds, United Kingdom
| | - Alessio Menga
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center “Guido Tarone”, University of Torino, Torino, Italy
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Hamamura K, Yoshida Y, Oyama K, Li J, Kawano S, Inoue K, Toyooka K, Yamadera M, Matsunaga N, Matsumura T, Aritake K. Hematopoietic Prostaglandin D Synthase Is Increased in Mast Cells and Pericytes in Autopsy Myocardial Specimens from Patients with Duchenne Muscular Dystrophy. Int J Mol Sci 2024; 25:1846. [PMID: 38339125 PMCID: PMC10855661 DOI: 10.3390/ijms25031846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
The leading cause of death for patients with Duchenne muscular dystrophy (DMD), a progressive muscle disease, is heart failure. Prostaglandin (PG) D2, a physiologically active fatty acid, is synthesized from the precursor PGH2 by hematopoietic prostaglandin D synthase (HPGDS). Using a DMD animal model (mdx mice), we previously found that HPGDS expression is increased not only in injured muscle but also in the heart. Moreover, HPGDS inhibitors can slow the progression of muscle injury and cardiomyopathy. However, the location of HPGDS in the heart is still unknown. Thus, this study investigated HPGDS expression in autopsy myocardial samples from DMD patients. We confirmed the presence of fibrosis, a characteristic phenotype of DMD, in the autopsy myocardial sections. Additionally, HPGDS was expressed in mast cells, pericytes, and myeloid cells of the myocardial specimens but not in the myocardium. Compared with the non-DMD group, the DMD group showed increased HPGDS expression in mast cells and pericytes. Our findings confirm the possibility of using HPGDS inhibitor therapy to suppress PGD2 production to treat skeletal muscle disorders and cardiomyopathy. It thus provides significant insights for developing therapeutic drugs for DMD.
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Affiliation(s)
- Kengo Hamamura
- Laboratory of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Daiichi University of Pharmacy, Fukuoka 815-8511, Japan;
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (J.L.); (S.K.); (N.M.)
| | - Yuya Yoshida
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (J.L.); (S.K.); (N.M.)
| | - Kosuke Oyama
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka 812-8582, Japan;
| | - Junhao Li
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (J.L.); (S.K.); (N.M.)
| | - Shimpei Kawano
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (J.L.); (S.K.); (N.M.)
| | - Kimiko Inoue
- Department of Neurology and Rehabilitation Medicine, National Hospital Organization Osaka Toneyama Medical Center, Toneyama 5-1-1, Toyonaka 560-8552, Japan;
| | - Keiko Toyooka
- Department of Neurology, National Hospital Organization Osaka Toneyama Medical Center, Toneyama 5-1-1, Toyonaka 560-8552, Japan; (K.T.); (T.M.)
| | - Misaki Yamadera
- Department of Clinical Research, National Hospital Organization Osaka Toneyama Medical Center, Toneyama 5-1-1, Toyonaka 560-8552, Japan;
| | - Naoya Matsunaga
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka 812-8582, Japan; (Y.Y.); (J.L.); (S.K.); (N.M.)
| | - Tsuyoshi Matsumura
- Department of Neurology, National Hospital Organization Osaka Toneyama Medical Center, Toneyama 5-1-1, Toyonaka 560-8552, Japan; (K.T.); (T.M.)
| | - Kosuke Aritake
- Laboratory of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Daiichi University of Pharmacy, Fukuoka 815-8511, Japan;
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Altunbulakli C, Jimenez DG, Askmyr D, Sobti A, Swoboda S, Greiff L, Lindstedt M. Targeted spatial proteomic analysis of CD8 + T- and myeloid cells in tonsillar cancer. Front Oncol 2023; 13:1253418. [PMID: 38044986 PMCID: PMC10691541 DOI: 10.3389/fonc.2023.1253418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 11/03/2023] [Indexed: 12/05/2023] Open
Abstract
Background Tonsillar cancer is caused by high-risk human papillomavirus (HPV), tobacco smoking, and alcohol abuse. Aspects of the patient's immune response to this disease have arisen as prognostic factors and treatment targets, reflecting differences in the type and protein expression profile of immune cells. Because tonsillar cancers are heterogenous lesions such data need to be spatially resolved. Methods In this study, we aim to explore inter-patient and intra-tumoral sources of variation in tonsillar cancer using immunofluorescence and targeted spatial proteomics to interrogate a cohort of 105 patients. Furthermore, we assess prognostic factors and elucidate molecular targets. We have used CD8, CD11c, and Pan-cytokeratin (PanCK) to quantify and locate immune cells driving antigen-specific cellular immunity. Guided by immunofluorescence information, we selected 355 CD8+, CD11c+, or PanCK+ areas inside and outside (i.e., stroma) cancer-cell islets, to quantify 43 immune-related proteins using digital spatial profiling. Results Quantitative analysis of immunofluorescence in combination with clinical data revealed that the abundance of total CD8+ cells and CD8+ cells infiltrating cancer-cell islets, respectively, were associated with higher 5-year disease-free survival and overall survival, independently of HPV-status and clinical stage. Comparison of CD8+ cells inside and outside cancer-cell islets revealed an upregulation of effector CD8+ T-cell and immune checkpoint molecules in the former. Among these, the expression of PD-L1 by CD8+ T-cells was associated with lower all-cause mortality in a univariate proportional hazards model. Similarly, a comparison of tumor boundary and stroma CD11c+ cells showed upregulation of both co-stimulatory and immune checkpoint molecules with proximity to tumor cell islets. Conclusion Our findings highlight the relevance of analyzing aspects of tumor micro-architecture in the search of prognostic markers and molecular targets for tonsillar cancer. The abundance of intra-tumoral CD8+ T-cells can be considered a positive predictive marker for tonsillar cancer, while the significance of PD-L1 expression by intra-tumoral CD8+ T-cells warrants further evaluation. Location-based differences in CD8+ and CD11c+ cells suggest an immune cell-altering effect on the tumor microenvironment, and grant new insight into which cells that can be targeted by novel therapeutic agents.
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Affiliation(s)
| | | | - David Askmyr
- Department of Otorhinolaryngology (ORL), Head & Neck Surgery, Skåne University Hospital, Lund, Sweden
- Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Aastha Sobti
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Sabine Swoboda
- Department of Otorhinolaryngology (ORL), Head & Neck Surgery, Skåne University Hospital, Lund, Sweden
- Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Lennart Greiff
- Department of Otorhinolaryngology (ORL), Head & Neck Surgery, Skåne University Hospital, Lund, Sweden
- Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Malin Lindstedt
- Department of Immunotechnology, Lund University, Lund, Sweden
- Department of Otorhinolaryngology (ORL), Head & Neck Surgery, Skåne University Hospital, Lund, Sweden
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Gu X, Zhu Y, Zhao C, Cao Y, Wang J, Zhang Q, Li L. TNFSF15 facilitates the differentiation of CD11b + myeloid cells into vascular pericytes in tumors. Cancer Biol Med 2023; 20:j.issn.2095-3941.2023.0245. [PMID: 37921408 PMCID: PMC10690882 DOI: 10.20892/j.issn.2095-3941.2023.0245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/13/2023] [Indexed: 11/04/2023] Open
Abstract
OBJECTIVE Immature vasculature lacking pericyte coverage substantially contributes to tumor growth, drug resistance, and cancer cell dissemination. We previously demonstrated that tumor necrosis factor superfamily 15 (TNFSF15) is a cytokine with important roles in modulating hematopoiesis and vascular homeostasis. The main purpose of this study was to explore whether TNFSF15 might promote freshly isolated myeloid cells to differentiate into CD11b+ cells and further into pericytes. METHODS A model of Lewis lung cancer was established in mice with red fluorescent bone marrow. After TNFSF15 treatment, CD11b+ myeloid cells and vascular pericytes in the tumors, and the co-localization of pericytes and vascular endothelial cells, were assessed. Additionally, CD11b+ cells were isolated from wild-type mice and treated with TNFSF15 to determine the effects on the differentiation of these cells. RESULTS We observed elevated percentages of bone marrow-derived CD11b+ myeloid cells and vascular pericytes in TNFSF15-treated tumors, and the latter cells co-localized with vascular endothelial cells. TNFSF15 protected against CD11b+ cell apoptosis and facilitated the differentiation of these cells into pericytes by down-regulating Wnt3a-VEGFR1 and up-regulating CD49e-FN signaling pathways. CONCLUSIONS TNFSF15 facilitates the production of CD11b+ cells in the bone marrow and promotes the differentiation of these cells into pericytes, which may stabilize the tumor neovasculature.
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Affiliation(s)
- Xiangxiang Gu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, and Haihe Laboratory of Cell Ecosystem, Tianjin 300350, China
| | - Yipan Zhu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, and Haihe Laboratory of Cell Ecosystem, Tianjin 300350, China
| | - Cancan Zhao
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, and Haihe Laboratory of Cell Ecosystem, Tianjin 300350, China
| | - Yixin Cao
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, and Haihe Laboratory of Cell Ecosystem, Tianjin 300350, China
| | - Jingying Wang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, and Haihe Laboratory of Cell Ecosystem, Tianjin 300350, China
| | - Qiangzhe Zhang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, and Haihe Laboratory of Cell Ecosystem, Tianjin 300350, China
| | - Luyuan Li
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, and Haihe Laboratory of Cell Ecosystem, Tianjin 300350, China
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Okyere AD, Nayak TK, Patwa V, Teplitsky D, McEachern E, Carter RL, Xu H, Gao E, Zhou Y, Tilley DG. Myeloid cell-specific deletion of epidermal growth factor receptor aggravates acute cardiac injury. Clin Sci (Lond) 2023; 137:1513-1531. [PMID: 37728308 PMCID: PMC10758753 DOI: 10.1042/cs20230804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/08/2023] [Accepted: 09/19/2023] [Indexed: 09/21/2023]
Abstract
Myeloid cells, including macrophages, play important roles as first responders to cardiac injury and stress. Epidermal growth factor receptor (EGFR) has been identified as a mediator of macrophage responsiveness to select diseases, though its impact on cardiac function or remodeling following acute ischemic injury is unknown. We aimed to define the role of myeloid cell-specific EGFR in the regulation of cardiac function and remodeling following acute myocardial infarction (MI)-induced injury. Floxed EGFR mice were bred with homozygous LysM-Cre (LMC) transgenic mice to yield myeloid-specific EGFR knockout (mKO) mice. Via echocardiography, immunohistochemistry, RNA sequencing and flow cytometry, the impact of myeloid cell-specific EGFR deletion on cardiac structure and function was assessed at baseline and following injury. Compared with LMC controls, myeloid cell-specific EGFR deletion led to an increase in cardiomyocyte hypertrophy at baseline. Bulk RNASeq analysis of isolated cardiac Cd11b+ myeloid cells revealed substantial changes in mKO cell transcripts at baseline, particularly in relation to predicted decreases in neovascularization. In response to myocardial infarction, mKO mice experienced a hastened decline in cardiac function with isolated cardiac Cd11b+ myeloid cells expressing decreased levels of the pro-reparative mediators Vegfa and Il10, which coincided with enhanced cardiac hypertrophy and decreased capillary density. Overall, loss of EGFR qualitatively alters cardiac resident macrophages that promotes a low level of basal stress and a more rapid decrease in cardiac function along with worsened repair following acute ischemic injury.
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Affiliation(s)
- Ama D. Okyere
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Tapas K. Nayak
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Viren Patwa
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - David Teplitsky
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Erin McEachern
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Rhonda L. Carter
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Heli Xu
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Erhe Gao
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Yan Zhou
- Biostatistics and Bioinformatics Facility, Fox Chase Cancer Center, Philadelphia, PA 19111, U.S.A
| | - Douglas G. Tilley
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
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Maia A, Cardona Gloria Y, Fuchs K, Chang TH, Engels P, Zhou M, Hinnenthal T, Rusch E, Gouttefangeas C, Weber ANR. Chitin oligomers promote lymphoid innate and adaptive immune cell activation. J Leukoc Biol 2023:7131286. [PMID: 37075217 DOI: 10.1093/jleuko/qiad044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 03/15/2023] [Accepted: 04/05/2023] [Indexed: 04/21/2023] Open
Abstract
Chitin is a highly abundant N-acetyl-glucosamine (GlcNAc) polysaccharide which has been linked to immune responses in the context of fungal infections and allergic asthma, especially to T helper 2 (Th2) immune responses. Unfortunately, due to the frequent use of crude chitin preparations of unknown purity and degree of polymerization, there is still great uncertainty how chitin activates different parts of the human immune system. We recently identified chitin oligomers of six GlcNAc units as the smallest immunologically active chitin motif and the innate immune receptor TLR2 as a primary chitin sensor on human and murine myeloid cells, but the response of further immune cells, e.g. lymphoid cells, to oligomeric chitin has not been investigated. Our analysis of primary human immune cells now shows that chitin oligomers activate immune responses of both innate and adaptive lymphocytes: Notably, chitin oligomers activated Natural Killer (NK) cells but not B lymphocytes. Moreover, chitin oligomers induced maturation of dendritic cells and enabled potent CD8+ T cell recall responses. Our results suggest that chitin oligomers not only trigger immediate innate responses in a limited range of myeloid cells, but also exert critical activities across the entire human immune system. This highlights chitin oligomer immune activation as an interesting and broadly applicable potential target for both adjuvant development and therapeutic interference in chitin-mediated pathologies.
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Affiliation(s)
- Ana Maia
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
- iFIT - Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Germany
| | - Yamel Cardona Gloria
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Katharina Fuchs
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Tzu-Hsuan Chang
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Pujan Engels
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Min Zhou
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Timo Hinnenthal
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Elisa Rusch
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - Cécile Gouttefangeas
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
- iFIT - Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ) Partner Site Tübingen, 72076 Tübingen, Germany
| | - Alexander N R Weber
- Interfaculty Institute for Cell Biology, Department of Immunology, Auf der Morgenstelle 15, 72076 Tübingen, Germany
- iFIT - Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ) Partner Site Tübingen, 72076 Tübingen, Germany
- CMFI - Cluster of Excellence (EXC 2124) "Controlling Microbes to Fight Infection", University of Tübingen, Germany
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Yang C, Garg R, Fredenburg K, Weidert F, Mendez-Gomez H, Amdur R, Lee JH, Ku J, Kresak J, Staras S, Sikora AG, Wang L, McGrail D, Mitchell D, Sayour E, Silver N. Association of Suppressive Myeloid Cell Enrichment with Aggressive Oropharynx Squamous Cell Carcinoma. Cancers (Basel) 2023; 15:2346. [PMID: 37190274 PMCID: PMC10136648 DOI: 10.3390/cancers15082346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/22/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND While immune-cell infiltrated tumors, such as human papillomavirus positive (HPV+) ororpharyngeal squamous cell carcinomas (OPSCC) have been associated with an improved clinical prognosis, there is evidence to suggest that OPSCCs are also subjected to increased immunoregulatory influence. The objective of this study was to assess whether patients with clinically aggressive OPSCC have a distinct immunosuppressive immune signature in the primary tumor. METHODS This retrospective case-control study analyzed 37 pre-treatment tissue samples from HPV+ and HPV-negative OPSCC patients treated at a single institution. The cases were patients with known disease recurrence and the controls were patients without disease recurrence. An mRNA-expression immune-pathway profiling was performed, and correlated to clinical outcomes. The TCGA head and neck cancer database was utilized to make comparisons with the institutional cohort. RESULTS In our cohort, HPV-negative and HPV+ patients with known disease recurrence both had significantly increased suppressive monoctyte/macrophage and granulocyte cell-expression-profile enrichment. Similar findings were found in the TCGA cohort when comparing HPV-negative to positive patients. CONCLUSIONS our study demonstrates that patients with recurrent HPV+ OPSCC had suppressive monocyte/macrophage and granulocyte immune-cell enrichment, similar to those seen in the more aggressive HPV-negative OPSCC.
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Affiliation(s)
- Changlin Yang
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA
| | - Rekha Garg
- Department of Pediatrics, University of Florida, Gainesville, FL 32603, USA
| | | | - Frances Weidert
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA
| | - Hector Mendez-Gomez
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA
| | - Robert Amdur
- Department of Radiation Oncology, University of Florida, Gainesville, FL 32608, USA
| | - Ji-Hyun Lee
- Department of Biostatistics, University of Florida, Gainesville, FL 32603, USA
| | - Jamie Ku
- Head and Neck Institute, Cleveland Clinic, Cleveland, OH 44106, USA
| | - Jesse Kresak
- Department of Pathology, University of Florida, Gainesville, FL 32610, USA
| | - Stephanie Staras
- Department of Health Outcomes and Biomedical Informatics, University of Florida, Gainesville, FL 32610, USA
| | - Andrew G. Sikora
- Department of Head and Neck Surgery, MD Anderson Cancer Center, University of Texas, Houston, TX 77030, USA
| | - Lily Wang
- Translational Hematology and Oncology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Daniel McGrail
- Lerner Research Institute, Cleveland Clinic, Center of Immunotherapy and Precision Immuno-Oncology, Cleveland, OH 44106, USA
| | - Duane Mitchell
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA
| | - Elias Sayour
- Department of Neurosurgery, University of Florida, Gainesville, FL 32608, USA
| | - Natalie Silver
- Head and Neck Institute, Cleveland Clinic, Cleveland, OH 44106, USA
- Lerner Research Institute, Cleveland Clinic, Center of Immunotherapy and Precision Immuno-Oncology, Cleveland, OH 44106, USA
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10
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Xie W, Simats A, Guo Y, Huang T, Sun X, Chen W, Lin Y, Wang X, Lai Z, Yu W, Liesz A, Li P. Perspective Review of Myeloid Immune Cell Responses and Poststroke Immunosuppression. Stroke 2023. [PMID: 37021568 DOI: 10.1161/strokeaha.122.042075] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Ischemic stroke profoundly influences the peripheral immune system, which responds quickly to brain ischemia and participates in the evolution of poststroke neuroinflammation, while a period of systemic immunosuppression ensues. Poststroke immunosuppression brings harmful consequences, including increased infection rates and escalated death. As the most abundant cell population in the fast-responding innate immune system, myeloid cells including neutrophils and monocytes play an indispensable role in systemic immunosuppression after stroke. The change in myeloid response after stroke can be regulated by circulating DAMPs (damage-associated molecular patterns) and neuromodulatory mechanisms, which contain sympathetic nervous system, hypothalamic-pituitary-adrenal, and parasympathetic nervous system. In this review, we summarize the emerging roles and newly identified mechanisms underlying myeloid cell response in poststroke immunosuppression. Deeper understanding of the above points may pave the way for future development of novel therapeutic strategies to treat poststroke immunosuppression.
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Affiliation(s)
- Wanqing Xie
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
| | - Alba Simats
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Germany (A.S., A.L.)
| | - Yunlu Guo
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
| | - Tingting Huang
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
| | - Xiaoyu Sun
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
| | - Weijie Chen
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
| | - Yuxuan Lin
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
| | | | - Zhongmeng Lai
- Department of Anesthesiology, Fujian Medical University Union Hospital, China (Z.L.)
| | - Weifeng Yu
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
| | - Arthur Liesz
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Germany (A.S., A.L.)
- Munich Cluster for Systems Neurology (SyNergy), Germany (A.L.)
| | - Peiying Li
- Department of Anesthesiology, Clinical Research Center, Renji Hospital, Shanghai Jiao Tong University School of Medicine, China (W.X., Y.G., T.H., X.S., W.C., Y.L., W.X., W.Y., P.L.)
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11
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Steinberger KJ, Eubank TD. The Underexplored Landscape of Hypoxia-Inducible Factor 2 Alpha and Potential Roles in Tumor Macrophages: A Review. Oxygen (Basel) 2023; 3:45-76. [PMID: 37124241 PMCID: PMC10137047 DOI: 10.3390/oxygen3010005] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Low tissue oxygenation, termed hypoxia, is a characteristic of solid tumors with negative consequences. Tumor-associated macrophages (TAMs) accumulate in hypoxic tumor regions and correlate with worse outcomes in cancer patients across several tumor types. Thus, the molecular mechanism in which macrophages respond to low oxygen tension has been increasingly investigated in the last decade. Hypoxia stabilizes a group of hypoxia-inducible transcription factors (HIFs) reported to drive transcriptional programs involved in cell survival, metabolism, and angiogenesis. Though both tumor macrophage HIF-1α and HIF-2α correlate with unfavorable tumor microenvironments, most research focuses on HIF-1α as the master regulator of hypoxia signaling, because HIF-1α expression was originally identified in several cancer types and correlates with worse outcome in cancer patients. The relative contribution of each HIFα subunit to cell phenotypes is poorly understood especially in TAMs. Once thought to have overlapping roles, recent investigation of macrophage HIF-2α has demonstrated a diverse function from HIF-1α. Little work has been published on the differential role of hypoxia-dependent macrophage HIF-2α when compared to HIF-1α in the context of tumor biology. This review highlights cellular HIF-2α functions and emphasizes the gap in research investigating oxygen-dependent functions of tumor macrophage HIF-2α.
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Affiliation(s)
- Kayla J. Steinberger
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, WV 26505, USA
- In Vivo Multifunctional Magnetic Resonance Center, West Virginia University, Morgantown, WV 26505, USA
- West Virginia University Cancer Institute, Morgantown, WV 26505, USA
- Correspondence: (K.J.S.); (T.D.E.)
| | - Timothy D. Eubank
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, WV 26505, USA
- In Vivo Multifunctional Magnetic Resonance Center, West Virginia University, Morgantown, WV 26505, USA
- West Virginia University Cancer Institute, Morgantown, WV 26505, USA
- Correspondence: (K.J.S.); (T.D.E.)
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12
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Jimenez DG, Altunbulakli C, Swoboda S, Sobti A, Askmyr D, Ali A, Greiff L, Lindstedt M. Single-cell analysis of myeloid cells in HPV + tonsillar cancer. Front Immunol 2023; 13:1087843. [PMID: 36741389 PMCID: PMC9893928 DOI: 10.3389/fimmu.2022.1087843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/28/2022] [Indexed: 01/20/2023] Open
Abstract
The incidence of human papillomavirus-positive (HPV+) tonsillar cancer has been sharply rising during the last decades. Myeloid cells represent an appropriate therapeutic target due to their proximity to virus-infected tumor cells, and their ability to orchestrate antigen-specific immunity, within the tonsil. However, the interrelationship of steady-state and inflammatory myeloid cell subsets, and their impact on patient survival remains unexplored. Here, we used single-cell RNA-sequencing to map the myeloid compartment in HPV+ tonsillar cancer. We observed an expansion of the myeloid compartment in HPV+ tonsillar cancer, accompanied by interferon-induced cellular responses both in dendritic cells (DCs) and monocyte-macrophages. Our analysis unveiled the existence of four DC lineages, two macrophage polarization processes, and their sequential maturation profiles. Within the DC lineages, we described a balance shift in the frequency of progenitor and mature cDC favoring the cDC1 lineage in detriment of cDC2s. Furthermore, we observed that all DC lineages apart from DC5s matured into a common activated DC transcriptional program involving upregulation of interferon-inducible genes. In turn, the monocyte-macrophage lineage was subjected to early monocyte polarization events, which give rise to either interferon-activated or CXCL-producing macrophages, the latter enriched in advanced tumor stages. We validated the existence of most of the single-cell RNA-seq clusters using 26-plex flow cytometry, and described a positive impact of cDC1 and interferon-activated DCs and macrophages on patient survival using gene signature scoring. The current study contributes to the understanding of myeloid ontogeny and dynamics in HPV-driven tonsillar cancer, and highlights myeloid biomarkers that can be used to assess patient prognosis.
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Affiliation(s)
| | | | - Sabine Swoboda
- Department of ORL, Head & Neck Surgery, Skåne University Hospital, Lund, Sweden,Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Aastha Sobti
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - David Askmyr
- Department of ORL, Head & Neck Surgery, Skåne University Hospital, Lund, Sweden,Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Ashfaq Ali
- Department of Immunotechnology, Lund University, Lund, Sweden,National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Lund University, Lund, Sweden
| | - Lennart Greiff
- Department of ORL, Head & Neck Surgery, Skåne University Hospital, Lund, Sweden,Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Malin Lindstedt
- Department of Immunotechnology, Lund University, Lund, Sweden,*Correspondence: Malin Lindstedt,
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13
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Labiner HE, Sas KM, Baur JA, Sims CA. Sirtuin 1 deletion increases inflammation and mortality in sepsis. J Trauma Acute Care Surg 2022; 93:672-678. [PMID: 35857031 PMCID: PMC10673225 DOI: 10.1097/ta.0000000000003751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sepsis is a hyperinflammatory response to infection that can lead to multiorgan failure and eventually death. Often, the onset of multiorgan failure is heralded by renal dysfunction. Sirtuin 1 (SIRT1) promotes cellular stress resilience by inhibiting inflammation and promoting mitochondrial function. We hypothesize that SIRT1 plays an important role in limiting the inflammatory responses that drive organ failure in sepsis, predominantly via expression in myeloid cells. METHODS We performed cecal ligation and puncture (CLP) on whole body SIRT1 knockout (S1KO) and myeloid cell-specific S1KO (S1KO-LysMCre) mice on a C57BL/6J background. Serum interleukin (IL)-6 was quantified by enzyme-linked immunosorbent assay. Renal mitochondrial complex activity was measured using Oxygraph-2k (Oroboros Instruments, Innsbruck, Austria). Blood urea nitrogen (BUN) was measured from serum. Survival was monitored for up to 5 days. RESULTS Following CLP, S1KO mice had decreased renal mitochondrial complex I-dependent respiratory capacity (241.7 vs. 418.3 mmolO2/mg/min, p = 0.018) and renal mitochondrial complex II-dependent respiratory capacity (932.3 vs. 1,178.4, p = 0.027), as well as reduced rates of fatty acid oxidation (187.3 vs. 250.3, p = 0.022). Sirtuin 1 knockout mice also had increased BUN (48.0 mg/dL vs. 16.0 mg/dL, p = 0.049). Interleukin-6 levels were elevated in S1KO mice (96.5 ng/mL vs. 45.6 ng/mL, p = 0.028) and S1KO-LysMCre mice (35.8 ng/mL vs. 24.5 ng/mL, p = 0.033) compared with controls 12 hours after surgery. Five-day survival in S1KO (33.3% vs. 83.3%, p = 0.025) and S1KO-LysMCre (60% vs. 100%, p = 0.049) mice was decreased compared with controls. CONCLUSION Sirtuin 1 deletion increases systemic inflammation in sepsis. Renal mitochondrial dysfunction, kidney injury, and mortality following CLP were all exacerbated by SIRT1 deletion. Similar effects on inflammation and survival were seen following myeloid cell-specific SIRT1 deletion, indicating that SIRT1 activity in myeloid cells may be a significant contributor for the protective effects of SIRT1 in sepsis.
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Affiliation(s)
- Hanna E. Labiner
- Division of Trauma, Critical Care, and Burn at The Ohio State University Wexner Medical Center, The Ohio State University, Columbus, OH, 43210
| | - Kelli M. Sas
- Division of Trauma, Critical Care, and Burn at The Ohio State University Wexner Medical Center, The Ohio State University, Columbus, OH, 43210
| | - Joseph A. Baur
- Institute for Diabetes, Obesity and Metabolism and Department of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104
| | - Carrie A. Sims
- Division of Trauma, Critical Care, and Burn at The Ohio State University Wexner Medical Center, The Ohio State University, Columbus, OH, 43210
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14
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Rocamora-Reverte L, Villunger A, Wiegers GJ. Cell-Specific Immune Regulation by Glucocorticoids in Murine Models of Infection and Inflammation. Cells 2022; 11:cells11142126. [PMID: 35883569 PMCID: PMC9324070 DOI: 10.3390/cells11142126] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/29/2022] [Accepted: 07/04/2022] [Indexed: 02/07/2023] Open
Abstract
Glucocorticoids (GC) are highly potent negative regulators of immune and inflammatory responses. Effects of GC are primarily mediated by the glucocorticoid receptor (GR) which is expressed by all cell types of the immune system. It is, therefore, difficult to elucidate how endogenous GC mediate their effects on immune responses that involve multiple cellular interactions between various immune cell subsets. This review focuses on endogenous GC targeting specific cells of the immune system in various animal models of infection and inflammation. Without the timed release of these hormones, animals infected with various microbes or challenged in inflammatory disease models succumb as a consequence of overshooting immune and inflammatory responses. A clearer picture is emerging that endogenous GC thereby act in a cell-specific and disease model-dependent manner, justifying the need to develop techniques that target GC to individual immune cell types for improved clinical application.
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Affiliation(s)
- Lourdes Rocamora-Reverte
- Department of Immunology, Institute for Biomedical Aging Research, University of Innsbruck, 6020 Innsbruck, Austria;
| | - Andreas Villunger
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, 6020 Innsbruck, Austria;
| | - G. Jan Wiegers
- Institute for Developmental Immunology, Biocenter, Medical University of Innsbruck, 6020 Innsbruck, Austria;
- Correspondence:
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15
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Ma L, Vidana Gamage HE, Tiwari S, Han C, Henn MA, Krawczynska N, Dibaeinia P, Koelwyn GJ, Das Gupta A, Bautista Rivas RO, Wright CL, Xu F, Moore KJ, Sinha S, Nelson ER. The Liver X Receptor Is Selectively Modulated to Differentially Alter Female Mammary Metastasis-associated Myeloid Cells. Endocrinology 2022; 163:bqac072. [PMID: 35569056 PMCID: PMC9188661 DOI: 10.1210/endocr/bqac072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Indexed: 11/19/2022]
Abstract
Dysregulation of cholesterol homeostasis is associated with many diseases such as cardiovascular disease and cancer. Liver X receptors (LXRs) are major upstream regulators of cholesterol homeostasis and are activated by endogenous cholesterol metabolites such as 27-hydroxycholesterol (27HC). LXRs and various LXR ligands such as 27HC have been described to influence several extra-hepatic biological systems. However, disparate reports of LXR function have emerged, especially with respect to immunology and cancer biology. This would suggest that, similar to steroid nuclear receptors, the LXRs can be selectively modulated by different ligands. Here, we use RNA-sequencing of macrophages and single-cell RNA-sequencing of immune cells from metastasis-bearing murine lungs to provide evidence that LXR satisfies the 2 principles of selective nuclear receptor modulation: (1) different LXR ligands result in overlapping but distinct gene expression profiles within the same cell type, and (2) the same LXR ligands differentially regulate gene expression in a highly context-specific manner, depending on the cell or tissue type. The concept that the LXRs can be selectively modulated provides the foundation for developing precision pharmacology LXR ligands that are tailored to promote those activities that are desirable (proimmune), but at the same time minimizing harmful side effects (such as elevated triglyceride levels).
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Affiliation(s)
- Liqian Ma
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Hashni Epa Vidana Gamage
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Srishti Tiwari
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Chaeyeon Han
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Madeline A Henn
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Natalia Krawczynska
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Payam Dibaeinia
- Department of Computer Science, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Graeme J Koelwyn
- NYU Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Anasuya Das Gupta
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Rafael Ovidio Bautista Rivas
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Chris L Wright
- Roy J. Carver Biotechnology Center DNA Services, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Fangxiu Xu
- Roy J. Carver Biotechnology Center DNA Services, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Kathryn J Moore
- NYU Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, NY 10016, USA
- Department of Cell Biology, New York University School of Medicine, New York, NY 10032, USA
| | - Saurabh Sinha
- Department of Computer Science, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Erik R Nelson
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL 60612, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
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16
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Hoft SG, Pherson MD, DiPaolo RJ. Discovering Immune-Mediated Mechanisms of Gastric Carcinogenesis Through Single-Cell RNA Sequencing. Front Immunol 2022; 13:902017. [PMID: 35757757 PMCID: PMC9231461 DOI: 10.3389/fimmu.2022.902017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/27/2022] [Indexed: 12/17/2022] Open
Abstract
Single-cell RNA sequencing (scRNAseq) technology is still relatively new in the field of gastric cancer immunology but gaining significant traction. This technology now provides unprecedented insights into the intratumoral and intertumoral heterogeneities at the immunological, cellular, and molecular levels. Within the last few years, a volume of publications reported the usefulness of scRNAseq technology in identifying thus far elusive immunological mechanisms that may promote and impede gastric cancer development. These studies analyzed datasets generated from primary human gastric cancer tissues, metastatic ascites fluid from gastric cancer patients, and laboratory-generated data from in vitro and in vivo models of gastric diseases. In this review, we overview the exciting findings from scRNAseq datasets that uncovered the role of critical immune cells, including T cells, B cells, myeloid cells, mast cells, ILC2s, and other inflammatory stromal cells, like fibroblasts and endothelial cells. In addition, we also provide a synopsis of the initial scRNAseq findings on the interesting epithelial cell responses to inflammation. In summary, these new studies have implicated roles for T and B cells and subsets like NKT cells in tumor development and progression. The current studies identified diverse subsets of macrophages and mast cells in the tumor microenvironment, however, additional studies to determine their roles in promoting cancer growth are needed. Some groups specifically focus on the less prevalent ILC2 cell type that may contribute to early cancer development. ScRNAseq analysis also reveals that stromal cells, e.g., fibroblasts and endothelial cells, regulate inflammation and promote metastasis, making them key targets for future investigations. While evaluating the outcomes, we also highlight the gaps in the current findings and provide an assessment of what this technology holds for gastric cancer research in the coming years. With scRNAseq technology expanding rapidly, we stress the need for periodic review of the findings and assess the available scRNAseq analytical tools to guide future work on immunological mechanisms of gastric carcinogenesis.
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Affiliation(s)
- Stella G Hoft
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, United States
| | - Michelle D Pherson
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, MO, United States.,Genomics Core Facility, Saint Louis University School of Medicine, St. Louis, MO, United States
| | - Richard J DiPaolo
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, United States
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17
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Abstract
Medulloblastoma is an aggressive brain tumor that occurs predominantly in children. Despite intensive therapy, many patients die of the disease, and novel therapies are desperately needed. Although immunotherapy has shown promise in many cancers, the low mutational burden, limited infiltration of immune effector cells, and immune-suppressive microenvironment of medulloblastoma have led to the assumption that it is unlikely to respond to immunotherapy. However, emerging evidence is challenging this view. Here we review recent preclinical and clinical studies that have identified mechanisms of immune evasion in medulloblastoma, and highlight possible therapeutic interventions that may give new hope to medulloblastoma patients and their families.
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Affiliation(s)
- Tanja Eisemann
- Tumor Initiation and Maintenance Program, National Cancer Institute-Designated Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, USA
| | - Robert J Wechsler-Reya
- Tumor Initiation and Maintenance Program, National Cancer Institute-Designated Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, USA.,Department of Pediatrics, University of California at San Diego, La Jolla, California 92161, USA
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18
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Brom VC, Burger C, Wirtz DC, Schildberg FA. The Role of Immune Checkpoint Molecules on Macrophages in Cancer, Infection, and Autoimmune Pathologies. Front Immunol 2022; 13:837645. [PMID: 35418973 PMCID: PMC8995707 DOI: 10.3389/fimmu.2022.837645] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/02/2022] [Indexed: 12/13/2022] Open
Abstract
Immune checkpoint inhibitors have revolutionized immunotherapy against various cancers over the last decade. The use of checkpoint inhibitors results in remarkable re-activation of patients’ immune system, but is also associated with significant adverse events. In this review, we emphasize the importance of cell-type specificity in the context of immune checkpoint-based interventions and particularly focus on the relevance of macrophages. Immune checkpoint blockade alters the dynamic macrophage phenotypes and thereby substantially manipulates therapeutical outcome. Considering the macrophage-specific immune checkpoint biology, it seems feasible to ameliorate the situation of patients with severe side effects and even increase the probability of survival for non-responders to checkpoint inhibition. Apart from malignancies, investigating immune checkpoint molecules on macrophages has stimulated their fundamental characterization and use in other diseases as well, such as acute and chronic infections and autoimmune pathologies. Although the macrophage-specific effect of checkpoint molecules has been less studied so far, the current literature shows that a macrophage-centered blockade of immune checkpoints as well as a stimulation of their expression represents promising therapeutic avenues. Ultimately, the therapeutic potential of a macrophage-focused checkpoint therapy might be maximized by diagnostically assessing individual checkpoint expression levels on macrophages, thereby personalizing an effective treatment approach for each patient having cancer, infection, or autoimmune diseases.
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Affiliation(s)
- Victoria C Brom
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Christof Burger
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Dieter C Wirtz
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Frank A Schildberg
- Clinic for Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
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19
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Xie G, Song Y, Li N, Zhang Z, Wang X, Liu Y, Jiao S, Wei M, Yu B, Wang Y, Wang H, Qu A. Myeloid peroxisome proliferator-activated receptor α deficiency accelerates liver regeneration via IL-6/STAT3 pathway after 2/3 partial hepatectomy in mice. Hepatobiliary Surg Nutr 2022; 11:199-211. [PMID: 35464270 DOI: 10.21037/hbsn-20-688] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/19/2021] [Indexed: 12/29/2022]
Abstract
Background Liver regeneration is a fundamental process for sustained body homeostasis and liver function recovery after injury. Emerging evidence demonstrates that myeloid cells play a critical role in liver regeneration by secreting cytokines and growth factors. Peroxisome proliferator-activated receptor α (PPARα), the target of clinical lipid-lowering fibrate drugs, regulates cell metabolism, proliferation, and survival. However, the role of myeloid PPARα in partial hepatectomy (PHx)-induced liver regeneration remains unknown. Methods Myeloid-specific PPARa-deficient (Ppara Mye-/-) mice and the littermate controls (Ppara fl/fl) were subjected to sham or 2/3 PHx to induce liver regeneration. Hepatocyte proliferation and mitosis were assessed by immunohistochemical (IHC) staining for 5-bromo-2'-deoxyuridine (BrdU) and Ki67 as well as hematoxylin and eosin (H&E) staining. Macrophage and neutrophil infiltration into livers were reflected by IHC staining for galectin-3 and myeloperoxidase (MPO) as well as flow cytometry analysis. Macrophage migration ability was evaluated by transwell assay. The mRNA levels for cell cycle or inflammation-related genes were measured by quantitative real-time RT-PCR (qPCR). The protein levels of cell proliferation related protein and phosphorylated signal transducer and activator of transcription 3 (STAT3) were detected by Western blotting. Results Ppara Mye-/- mice showed enhanced hepatocyte proliferation and mitosis at 32 h after PHx compared with Ppara fl/fl mice, which was consistent with increased proliferating cell nuclear antigen (Pcna) mRNA and cyclinD1 (CYCD1) protein levels in Ppara Mye-/- mice at 32 h after PHx, indicating an accelerated liver regeneration in Ppara Mye-/- mice. IHC staining showed that macrophages and neutrophils were increased in Ppara Mye-/- liver at 32 h after PHx. Livers of Ppara Mye-/- mice also showed an enhanced infiltration of M1 macrophages at 32 h after PHx. In vitro, Ppara-deficient bone marrow-derived macrophages (BMDMs) exhibited markedly enhanced migratory capacity and upregulated M1 genes Il6 and Tnfa but downregulated M2 gene Arg1 expressions. Furthermore, the phosphorylation of STAT3, a key transcript factor mediating IL6-promoted hepatocyte survival and proliferation, was reinforced in the liver of Ppara Mye-/- mice after PHx. Conclusions This study provides evidence that myeloid PPARα deficiency accelerates PHx-induced liver regeneration via macrophage polarization and consequent IL-6/STAT3 activation, thus providing a potential target for manipulating liver regeneration.
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Affiliation(s)
- Guomin Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Yanting Song
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Na Li
- Department of Endocrinology, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Zhenzhen Zhang
- Department of Infectious Diseases, Peking University First Hospital, Beijing, China
| | - Xia Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Ye Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Shiyu Jiao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Ming Wei
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Baoqi Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - Yan Wang
- Department of Infectious Diseases, Peking University First Hospital, Beijing, China
| | - Hua Wang
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Aijuan Qu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
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20
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Beddingfield BJ, Sugimoto C, Wang E, Weaver SC, Russell-Lodrigue KE, Killeen SZ, Kuroda MJ, Roy CJ. Phenotypic and Kinetic Changes of Myeloid Lineage Cells in Innate Response to Chikungunya Infection in Cynomolgus Macaques. Viral Immunol 2022; 35:192-199. [PMID: 35333631 PMCID: PMC9063200 DOI: 10.1089/vim.2021.0171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Chikungunya (CHIKV) is an emerging worldwide viral threat. The immune response to infection can lead to protection and convalescence or result in long-term sequelae such as arthritis. Early innate immune events during acute infection have been characterized for some cell types, but more must be elucidated with respect to cellular responses of monocytes and other myeloid lineage cells. In addition to their roles in protection and inflammation resolution, monocytes and macrophages are sites for viral replication and may also act as viral reservoirs. These cells are also found in joints postinfection, possibly playing a role in long-term CHIKV-induced pathology. We examined kinetic and phenotypic changes in myeloid lineage cells, including monocytes, in cynomolgus macaques early after experimental infection with CHIKV. We found increased proliferation of monocytes and decreased proliferation of myeloid dendritic cells early during infection, with an accompanying decrease in absolute numbers of both cell types, as well as a simultaneous increase in plasmacytoid dendritic cell number. An increase in CD16 and CD14 was seen along with a decrease in monocyte Human Leukocyte Antigen-DR isotype expression within 3 days of infection, potentially indicating monocyte deactivation. A transient decrease in T cells, B cells, and natural killer cells correlated with lymphocytopenia observed during human infections with CHIKV. CD4+ T cell proliferation decreased in blood, indicating relocation of cells to effector sites. These data indicate CHIKV influences proliferation rates and kinetics of myeloid lineage cells early during infection and may prove useful in development of therapeutics and evaluation of infection-induced pathogenesis.
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Affiliation(s)
- Brandon J Beddingfield
- Division of Microbiology, Tulane National Primate Research Center, Covington, Louisiana, USA
| | - Chie Sugimoto
- Division of Host Defense, Institute for Frontier Medicine, Dokkyo Medical University, Shimotsuga-gun, Japan
| | - Eryu Wang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Scott C Weaver
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA.,World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, USA
| | - Kasi E Russell-Lodrigue
- Division of Veterinary Medicine, Tulane National Primate Research Center, Covington, Louisiana, USA
| | - Stephanie Z Killeen
- Division of Microbiology, Tulane National Primate Research Center, Covington, Louisiana, USA
| | - Marcelo J Kuroda
- Center for Immunology and Infectious Diseases, and California National Primate Research Center, University of California, Davis, California, USA
| | - Chad J Roy
- Division of Microbiology, Tulane National Primate Research Center, Covington, Louisiana, USA.,Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, USA
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21
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Kwack KH, Zhang L, Kramer ED, Thiyagarajan R, Lamb NA, Arao Y, Bard JE, Seldeen KL, Troen BR, Blackshear PJ, Abrams SI, Kirkwood KL. Tristetraprolin limits age-related expansion of myeloid-derived suppressor cells. Front Immunol 2022; 13:1002163. [PMID: 36263047 PMCID: PMC9573970 DOI: 10.3389/fimmu.2022.1002163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
Aging results in enhanced myelopoiesis, which is associated with an increased prevalence of myeloid leukemias and the production of myeloid-derived suppressor cells (MDSCs). Tristetraprolin (TTP) is an RNA binding protein that regulates immune-related cytokines and chemokines by destabilizing target mRNAs. As TTP expression is known to decrease with age in myeloid cells, we used TTP-deficient (TTPKO) mice to model aged mice to study TTP regulation in age-related myelopoiesis. Both TTPKO and myeloid-specific TTPKO (cTTPKO) mice had significant increases in both MDSC subpopulations M-MDSCs (CD11b+Ly6ChiLy6G-) and PMN-MDSCs (CD11b+Ly6CloLy6G+), as well as macrophages (CD11b+F4/80+) in the spleen and mesenteric lymph nodes; however, no quantitative changes in MDSCs were observed in the bone marrow. In contrast, gain-of-function TTP knock-in (TTPKI) mice had no change in MDSCs compared with control mice. Within the bone marrow, total granulocyte-monocyte progenitors (GMPs) and monocyte progenitors (MPs), direct antecedents of M-MDSCs, were significantly increased in both cTTPKO and TTPKO mice, but granulocyte progenitors (GPs) were significantly increased only in TTPKO mice. Transcriptomic analysis of the bone marrow myeloid cell populations revealed that the expression of CC chemokine receptor 2 (CCR2), which plays a key role in monocyte mobilization to inflammatory sites, was dramatically increased in both cTTPKO and TTPKO mice. Concurrently, the concentration of CC chemokine ligand 2 (CCL2), a major ligand of CCR2, was high in the serum of cTTPKO and TTPKO mice, suggesting that TTP impacts the mobilization of M-MDSCs from the bone marrow to inflammatory sites during aging via regulation of the CCR2-CCL2 axis. Collectively, these studies demonstrate a previously unrecognized role for TTP in regulating age-associated myelopoiesis through the expansion of specific myeloid progenitors and M-MDSCs and their recruitment to sites of injury, inflammation, or other pathologic perturbations.
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Affiliation(s)
- Kyu Hwan Kwack
- Department of Oral Biology, University at Buffalo, Buffalo, NY, United States
- Department of Oral Microbiology, College of Dentistry, Kyung Hee University, Seoul, South Korea
| | - Lixia Zhang
- Department of Oral Biology, University at Buffalo, Buffalo, NY, United States
| | - Elliot D. Kramer
- Department of Medicine, University at Buffalo, Buffalo, NY, United States
- Departments of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Ramkumar Thiyagarajan
- Department of Medicine, University at Buffalo, Buffalo, NY, United States
- Division of Geriatrics and Palliative Medicine, University at Buffalo, Buffalo, NY, United States
- Research Service, Veterans Affairs Western New York Healthcare Service, Buffalo, NY, United States
| | - Natalie A. Lamb
- Department of Biochemistry, University at Buffalo, Buffalo, NY, United States
- Genomics and Bioinformatics Core, New York State Center of Excellence for Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY, United States
| | - Yukitomo Arao
- Signal Transduction Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
| | - Jonathan E. Bard
- Department of Biochemistry, University at Buffalo, Buffalo, NY, United States
- Genomics and Bioinformatics Core, New York State Center of Excellence for Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY, United States
| | - Kenneth L. Seldeen
- Department of Medicine, University at Buffalo, Buffalo, NY, United States
- Division of Geriatrics and Palliative Medicine, University at Buffalo, Buffalo, NY, United States
- Research Service, Veterans Affairs Western New York Healthcare Service, Buffalo, NY, United States
| | - Bruce R. Troen
- Department of Medicine, University at Buffalo, Buffalo, NY, United States
- Division of Geriatrics and Palliative Medicine, University at Buffalo, Buffalo, NY, United States
- Research Service, Veterans Affairs Western New York Healthcare Service, Buffalo, NY, United States
| | - Perry J. Blackshear
- Signal Transduction Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
- Departments of Biochemistry & Medicine, Duke University Medical Center, Durham, NC, United States
| | - Scott I. Abrams
- Departments of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Keith L. Kirkwood
- Department of Oral Biology, University at Buffalo, Buffalo, NY, United States
- Head & Neck/Plastic & Reconstructive Surgery, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
- *Correspondence: Keith L. Kirkwood,
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22
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Shen S, Wu Q, Liu J, Wu L, Zhang R, Uemura Y, Yu X, Chen L, Liu T. Analysis of human glioma-associated co-inhibitory immune checkpoints in glioma microenvironment and peripheral blood. Int J Immunopathol Pharmacol 2021; 35:20587384211056505. [PMID: 34923867 PMCID: PMC8725225 DOI: 10.1177/20587384211056505] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
One biomarker for a better therapeutic effect of immune checkpoint inhibitors is
high expression of checkpoint in tumor microenvironment The purpose of this
study is to investigate the expression of immune checkpoints in human glioma
microenvironment and peripheral blood mononuclear cells. First, single-cell
suspension from 20 fresh high-grade glioma (HGG) specimens were obtained, and
analyzed for lymphocyte composition, then six co-inhibitory immune checkpoints
were analyzed at the same time. Second, 36 PBMC specimens isolated from HGG
blood samples were analyzed for the same items. In GME, there were four distinct
subtypes of cells, among them, immune cells accounted for an average of 51.3%.
The myeloid cell population (CD11b+) was the most common immune cell
identified, accounting for 36.14% on average; the remaining were most
CD3+CD4+ and
CD3+/CD8−/CD4− T lymphocytes. In these
cells, we detected the expression of BTLA, LAG3, Tim-3, CTLA-4, and VISTA on
varying degrees. While in PBMCs, the result showed that when compared with
healthy volunteers, the proportion of NK cells decreased significantly in HGG
samples (p < 0.01). Moreover, the expression of BTLA, LAG3,
and Tim-3 in CD45+ immune cells in PBMC was more remarkable in glioma
samples. In conclusion, the CD11b+ myeloid cells were the predominant
immune cells in GME. Moreover, some immune checkpoints displayed a more
remarkable expression on the immune cells in GME. And the profile of checkpoint
expression in PBMC was partially consistent with that in GME.
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Affiliation(s)
- Shaoping Shen
- Department of Neurosurgery, The First Medical Centre, 104607Chinese PLA General Hospital, Beijing, China
| | - Qiyan Wu
- Institute of Oncology, The Fifth Medical Centre, 104607Chinese PLA General Hospital, Beijing, China
| | - Jialin Liu
- Department of Neurosurgery, The First Medical Centre, 104607Chinese PLA General Hospital, Beijing, China
| | - Liangliang Wu
- Institute of Oncology, The Fifth Medical Centre, 104607Chinese PLA General Hospital, Beijing, China
| | - Rong Zhang
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Yasushi Uemura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Xinguang Yu
- Department of Neurosurgery, The First Medical Centre, 104607Chinese PLA General Hospital, Beijing, China
| | - Ling Chen
- Department of Neurosurgery, The First Medical Centre, 104607Chinese PLA General Hospital, Beijing, China
| | - Tianyi Liu
- Institute of Oncology, The Fifth Medical Centre, 104607Chinese PLA General Hospital, Beijing, China
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23
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De Vlaminck K, Romão E, Puttemans J, Pombo Antunes AR, Kancheva D, Scheyltjens I, Van Ginderachter JA, Muyldermans S, Devoogdt N, Movahedi K, Raes G. Imaging of Glioblastoma Tumor-Associated Myeloid Cells Using Nanobodies Targeting Signal Regulatory Protein Alpha. Front Immunol 2021; 12:777524. [PMID: 34917090 PMCID: PMC8669144 DOI: 10.3389/fimmu.2021.777524] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/11/2021] [Indexed: 01/14/2023] Open
Abstract
Glioblastoma (GBM) is the most common malignant primary brain tumor. Glioblastomas contain a large non-cancerous stromal compartment including various populations of tumor-associated macrophages and other myeloid cells, of which the presence was documented to correlate with malignancy and reduced survival. Via single-cell RNA sequencing of human GBM samples, only very low expression of PD-1, PD-L1 or PD-L2 could be detected, whereas the tumor micro-environment featured a marked expression of signal regulatory protein alpha (SIRPα), an inhibitory receptor present on myeloid cells, as well as its widely distributed counter-receptor CD47. CITE-Seq revealed that both SIRPα RNA and protein are prominently expressed on various populations of myeloid cells in GBM tumors, including both microglia- and monocyte-derived tumor-associated macrophages (TAMs). Similar findings were obtained in the mouse orthotopic GL261 GBM model, indicating that SIRPα is a potential target on GBM TAMs in mouse and human. A set of nanobodies, single-domain antibody fragments derived from camelid heavy chain-only antibodies, was generated against recombinant SIRPα and characterized in terms of affinity for the recombinant antigen and binding specificity on cells. Three selected nanobodies binding to mouse SIRPα were radiolabeled with 99mTc, injected in GL261 tumor-bearing mice and their biodistribution was evaluated using SPECT/CT imaging and radioactivity detection in dissected organs. Among these, Nb15 showed clear accumulation in peripheral organs such as spleen and liver, as well as a clear tumor uptake in comparison to a control non-targeting nanobody. A bivalent construct of Nb15 exhibited an increased accumulation in highly vascularized organs that express the target, such as spleen and liver, as compared to the monovalent format. However, penetration into the GL261 brain tumor fell back to levels detected with a non-targeting control nanobody. These results highlight the tumor penetration advantages of the small monovalent nanobody format and provide a qualitative proof-of-concept for using SIRPα-targeting nanobodies to noninvasively image myeloid cells in intracranial GBM tumors with high signal-to-noise ratios, even without blood-brain barrier permeabilization.
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Affiliation(s)
- Karen De Vlaminck
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ema Romão
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Janik Puttemans
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ana Rita Pombo Antunes
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium
| | - Daliya Kancheva
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Isabelle Scheyltjens
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jo A Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium
| | - Serge Muyldermans
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Nick Devoogdt
- In Vivo Cellular and Molecular Imaging Laboratory, Department of Medical Imaging, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kiavash Movahedi
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Laboratory of Molecular and Cellular Therapy, Department of Biomedical Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Geert Raes
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium
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24
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Unrau L, Endig J, Goltz D, Sprezyna P, Ulrich H, Hagenstein J, Geers B, Kaftan K, Heukamp LC, Tiegs G, Diehl L. Smad7 Deficiency in Myeloid Cells Does Not Affect Liver Injury, Inflammation or Fibrosis after Chronic CCl 4 Exposure in Mice. Int J Mol Sci 2021; 22:11575. [PMID: 34769006 DOI: 10.3390/ijms222111575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/19/2021] [Accepted: 10/23/2021] [Indexed: 01/12/2023] Open
Abstract
Myeloid cells play an essential role in the maintenance of liver homeostasis, as well as the initiation and termination of innate and adaptive immune responses. In chronic hepatic inflammation, the production of transforming growth factor beta (TGF-β) is pivotal for scarring and fibrosis induction and progression. TGF-β signalling is tightly regulated via the Smad protein family. Smad7 acts as an inhibitor of the TGF-β-signalling pathway, rendering cells that express high levels of it resistant to TGF-β-dependent signal transduction. In hepatocytes, the absence of Smad7 promotes liver fibrosis. Here, we examine whether Smad7 expression in myeloid cells affects the extent of liver inflammation, injury and fibrosis induction during chronic liver inflammation. Using the well-established model of chronic carbon tetrachloride (CCl4)-mediated liver injury, we investigated the role of Smad7 in myeloid cells in LysM-Cre Smadfl/fl mice that harbour a myeloid-specific knock-down of Smad7. We found that the chronic application of CCl4 induces severe liver injury, with elevated serum alanine transaminase (ALT)/aspartate transaminase (AST) levels, centrilobular and periportal necrosis and immune-cell infiltration. However, the myeloid-specific knock-down of Smad7 did not influence these and other parameters in the CCl4-treated animals. In summary, our results suggest that, during long-term application of CCl4, Smad7 expression in myeloid cells and its potential effects on the TGF-β-signalling pathway are dispensable for regulating the extent of chronic liver injury and inflammation.
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25
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Abstract
AKI remains highly prevalent, yet no optimal therapy is available to prevent it or promote recovery after initial insult. Experimental studies have demonstrated that both innate and adaptive immune responses play a central role during AKI. In response to injury, myeloid cells are first recruited and activated on the basis of specific signals from the damaged microenvironment. The subsequent recruitment and activation state of the immune cells depends on the stage of injury and recovery, reflecting a dynamic and diverse spectrum of immunophenotypes. In this review, we highlight our current understanding of the mechanisms by which myeloid cells contribute to injury, repair, and fibrosis after AKI.
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Affiliation(s)
- Leyuan Xu
- Department of Internal Medicine, Section of Nephrology, Yale University School of Medicine, New Haven, Connecticut
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26
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Baumann N, Rösner T, Jansen JHM, Chan C, Marie Eichholz K, Klausz K, Winterberg D, Müller K, Humpe A, Burger R, Peipp M, Schewe DM, Kellner C, Leusen JHW, Valerius T. Enhancement of epidermal growth factor receptor antibody tumor immunotherapy by glutaminyl cyclase inhibition to interfere with CD47/signal regulatory protein alpha interactions. Cancer Sci 2021; 112:3029-3040. [PMID: 34058788 PMCID: PMC8353920 DOI: 10.1111/cas.14999] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/17/2021] [Accepted: 05/23/2021] [Indexed: 12/21/2022] Open
Abstract
Integrin associated protein (CD47) is an important target in immunotherapy, as it is expressed as a "don't eat me" signal on many tumor cells. Interference with its counter molecule signal regulatory protein alpha (SIRPα), expressed on myeloid cells, can be achieved with blocking Abs, but also by inhibiting the enzyme glutaminyl cyclase (QC) with small molecules. Glutaminyl cyclase inhibition reduces N-terminal pyro-glutamate formation of CD47 at the SIRPα binding site. Here, we investigated the impact of QC inhibition on myeloid effector cell-mediated tumor cell killing by epidermal growth factor receptor (EGFR) Abs and the influence of Ab isotypes. SEN177 is a QC inhibitor and did not interfere with EGFR Ab-mediated direct growth inhibition, complement-dependent cytotoxicity, or Ab-dependent cell-mediated cytotoxicity (ADCC) by mononuclear cells. However, binding of a human soluble SIRPα-Fc fusion protein to SEN177 treated cancer cells was significantly reduced in a dose-dependent manner, suggesting that pyro-glutamate formation of CD47 was affected. Glutaminyl cyclase inhibition in tumor cells translated into enhanced Ab-dependent cellular phagocytosis by macrophages and enhanced ADCC by polymorphonuclear neutrophilic granulocytes. Polymorphonuclear neutrophilic granulocyte-mediated ADCC was significantly more effective with EGFR Abs of human IgG2 or IgA2 isotypes than with IgG1 Abs, proposing that the selection of Ab isotypes could critically affect the efficacy of Ab therapy in the presence of QC inhibition. Importantly, QC inhibition also enhanced the therapeutic efficacy of EGFR Abs in vivo. Together, these results suggest a novel approach to specifically enhance myeloid effector cell-mediated efficacy of EGFR Abs by orally applicable small molecule QC inhibitors.
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Affiliation(s)
- Niklas Baumann
- Section for Stem Cell Transplantation and ImmunotherapyDepartment of Medicine IIChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Thies Rösner
- Section for Stem Cell Transplantation and ImmunotherapyDepartment of Medicine IIChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - J. H. Marco Jansen
- Immunotherapy LaboratoryCenter for Translational ImmunologyUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Chilam Chan
- Immunotherapy LaboratoryCenter for Translational ImmunologyUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Klara Marie Eichholz
- Section for Stem Cell Transplantation and ImmunotherapyDepartment of Medicine IIChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Katja Klausz
- Section for Stem Cell Transplantation and ImmunotherapyDepartment of Medicine IIChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Dorothee Winterberg
- Pediatric Hematology/OncologyALL‐BFM Study GroupChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Kristina Müller
- Pediatric Hematology/OncologyALL‐BFM Study GroupChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Andreas Humpe
- Department of Transfusion Medicine, Cell Therapeutics and HemostaseologyUniversity HospitalLMU MunichMunichGermany
| | - Renate Burger
- Section for Stem Cell Transplantation and ImmunotherapyDepartment of Medicine IIChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Matthias Peipp
- Section for Stem Cell Transplantation and ImmunotherapyDepartment of Medicine IIChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Denis M. Schewe
- Pediatric Hematology/OncologyALL‐BFM Study GroupChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
| | - Christian Kellner
- Department of Transfusion Medicine, Cell Therapeutics and HemostaseologyUniversity HospitalLMU MunichMunichGermany
| | - Jeanette H. W. Leusen
- Immunotherapy LaboratoryCenter for Translational ImmunologyUniversity Medical Center UtrechtUtrechtThe Netherlands
| | - Thomas Valerius
- Section for Stem Cell Transplantation and ImmunotherapyDepartment of Medicine IIChristian‐Albrechts‐University Kiel and University Medical Center Schleswig‐Holstein, Campus KielKielGermany
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27
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He Y, Liu H, Luo S, Amos CI, Lee JE, Yang K, Qureshi AA, Han J, Wei Q. Genetic variants of EML1 and HIST1H4E in myeloid cell-related pathway genes independently predict cutaneous melanoma-specific survival. Am J Cancer Res 2021; 11:3252-3262. [PMID: 34249459 PMCID: PMC8263692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 12/07/2020] [Indexed: 06/13/2023] Open
Abstract
UNLABELLED Both in vivo and in vitro evidence has supported a key role of myeloid cells in immune suppression in melanoma and in promoting melanocytic metastases. Some single-nucleotide polymorphisms (SNPs) have been shown to predict cutaneous melanoma-specific survival (CMSS), but the association between genetic variation in myeloid cell-related genes and cutaneous melanoma (CM) patient survival remains unknown. METHODS we investigated associations between SNPs in myeloid cell-related pathway genes and CMSS in a discovery dataset of 850 CM patients and replicated the findings in another dataset of 409 CM patients. RESULTS we identified two SNPs (EML1 rs10151787 A>G and HIST1H4E rs2069018 T>C) as independent prognostic factors for CMSS, with adjusted allelic hazards ratios of 1.56 (95% confidence interval =1.19-2.05, P=0.001) and 1.66 (1.22-2.26, P=0.001), respectively; so were their combined unfavorable alleles in a dose-response manner in both discovery and replication datasets (P trend<0.001 and 0.002, respectively). Additional functional analysis revealed that both EML1 rs10151787 G and HIST1H4E rs2069018 C alleles were associated with elevated mRNA expression levels in normal tissues. CONCLUSIONS Our findings suggest that EML1 rs10151787 A>G and HIST1H4E rs2069018 T>C are independent prognostic biomarkers for CMSS.
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Affiliation(s)
- Yuanmin He
- Department of Dermatology, The Affiliated Hospital of Southwest Medical UniversityLuzhou 646000, Sichuan, China
- Duke Cancer Institute, Duke University Medical CenterDurham, NC 27710, USA
- Department of Population Health Sciences, Duke University School of MedicineDurham, NC 27710, USA
| | - Hongliang Liu
- Duke Cancer Institute, Duke University Medical CenterDurham, NC 27710, USA
- Department of Population Health Sciences, Duke University School of MedicineDurham, NC 27710, USA
| | - Sheng Luo
- Department of Biostatistics and Bioinformatics, Duke University School of MedicineDurham, NC 27710, USA
| | - Christopher I Amos
- Institute for Clinical and Translational Research, Baylor College of MedicineHouston, TX 77030, USA
| | - Jeffrey E Lee
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer CenterHouston, TX 77030, USA
| | - Keming Yang
- Department of Epidemiology, Richard M. Fairbanks School of Public Health, Indiana UniversityIndianapolis, IN 46202, USA
| | - Abrar A Qureshi
- Department of Dermatology, Rhode Island HospitalProvidence, RI 02901, USA
- Warren Alpert Medical School at Brown UniversityProvidence, RI 02901, USA
| | - Jiali Han
- Department of Epidemiology, Richard M. Fairbanks School of Public Health, Indiana UniversityIndianapolis, IN 46202, USA
- The Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical SchoolBoston, MA 02115, USA
| | - Qingyi Wei
- Duke Cancer Institute, Duke University Medical CenterDurham, NC 27710, USA
- Department of Population Health Sciences, Duke University School of MedicineDurham, NC 27710, USA
- Department of Medicine, Duke University School of MedicineDurham, NC 27710, USA
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28
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Magri K, Eftedal I, Petroni Magri V, Matity L, Azzopardi CP, Muscat S, Pace NP. Acute Effects on the Human Peripheral Blood Transcriptome of Decompression Sickness Secondary to Scuba Diving. Front Physiol 2021; 12:660402. [PMID: 34177613 PMCID: PMC8222921 DOI: 10.3389/fphys.2021.660402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/12/2021] [Indexed: 01/22/2023] Open
Abstract
Decompression sickness (DCS) develops due to inert gas bubble formation in bodily tissues and in the circulation, leading to a wide range of potentially serious clinical manifestations. Its pathophysiology remains incompletely understood. In this study, we aim to explore changes in the human leukocyte transcriptome in divers with DCS compared to closely matched unaffected controls after uneventful diving. Cases (n = 7) were divers developing the typical cutis marmorata rash after diving with a confirmed clinical diagnosis of DCS. Controls (n = 6) were healthy divers who surfaced from a ≥25 msw dive without decompression violation or evidence of DCS. Blood was sampled at two separate time points-within 8 h of dive completion and 40-44 h later. Transcriptome analysis by RNA-Sequencing followed by bioinformatic analysis was carried out to identify differentially expressed genes and relate their function to biological pathways. In DCS cases, we identified enrichment of transcripts involved in acute inflammation, activation of innate immunity and free radical scavenging pathways, with specific upregulation of transcripts related to neutrophil function and degranulation. DCS-induced transcriptomic events were reversed at the second time point following exposure to hyperbaric oxygen. The observed changes are consistent with findings from animal models of DCS and highlight a continuum between the responses elicited by uneventful diving and diving complicated by DCS. This study sheds light on the inflammatory pathophysiology of DCS and the associated immune response. Such data may potentially be valuable in the search for novel treatments targeting this disease.
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Affiliation(s)
- Kurt Magri
- Hyperbaric Unit, Department of Medicine, Mater Dei Hospital, Msida, Malta
| | - Ingrid Eftedal
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, NTNU Norwegian University of Science and Technology, Trondheim, Norway
- Faculty of Nursing and Health Sciences, Nord University, Bodø, Norway
| | - Vanessa Petroni Magri
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Lyubisa Matity
- Hyperbaric Unit, Department of Medicine, Mater Dei Hospital, Msida, Malta
| | | | - Stephen Muscat
- Hyperbaric Unit, Department of Medicine, Mater Dei Hospital, Msida, Malta
| | - Nikolai Paul Pace
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
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29
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Sweet DR, Lam C, Jain MK. Evolutionary Protection of Krüppel-Like Factors 2 and 4 in the Development of the Mature Hemovascular System. Front Cardiovasc Med 2021; 8:645719. [PMID: 34079826 PMCID: PMC8165158 DOI: 10.3389/fcvm.2021.645719] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/21/2021] [Indexed: 02/02/2023] Open
Abstract
A properly functioning hemovascular system, consisting of circulating innate immune cells and endothelial cells (ECs), is essential in the distribution of nutrients to distant tissues while ensuring protection from invading pathogens. Professional phagocytes (e.g., macrophages) and ECs have co-evolved in vertebrates to adapt to increased physiological demands. Intercellular interactions between components of the hemovascular system facilitate numerous functions in physiology and disease in part through the utilization of shared signaling pathways and factors. Krüppel-like factors (KLFs) 2 and 4 are two such transcription factors with critical roles in both cellular compartments. Decreased expression of either factor in myeloid or endothelial cells increases susceptibility to a multitude of inflammatory diseases, underscoring the essential role for their expression in maintaining cellular quiescence. Given the close evolutionary relationship between macrophages and ECs, along with their shared utilization of KLF2 and 4, we hypothesize that KLF genes evolved in such a way that protected their expression in myeloid and endothelial cells. Within this Perspective, we review the roles of KLF2 and 4 in the hemovascular system and explore evolutionary trends in their nucleotide composition that suggest a coordinated protection that corresponds with the development of mature myeloid and endothelial systems.
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Affiliation(s)
- David R Sweet
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH, United States.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States.,Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
| | - Cherry Lam
- Department of Biology, New York University, New York, NY, United States
| | - Mukesh K Jain
- Case Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH, United States.,Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
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30
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Lora J, Weskamp G, Li TM, Maretzky T, Shola DTN, Monette S, Lichtenthaler SF, Lu TT, Yang C, Blobel CP. Targeted truncation of the ADAM17 cytoplasmic domain in mice results in protein destabilization and a hypomorphic phenotype. J Biol Chem 2021; 296:100733. [PMID: 33957124 PMCID: PMC8191336 DOI: 10.1016/j.jbc.2021.100733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 04/21/2021] [Accepted: 04/28/2021] [Indexed: 12/28/2022] Open
Abstract
A disintegrin and metalloprotease 17 (ADAM17) is a cell-surface metalloprotease that serves as the principle sheddase for tumor necrosis factor α (TNFα), interleukin-6 receptor (IL-6R), and several ligands of the epidermal growth factor receptor (EGFR), regulating these crucial signaling pathways. ADAM17 activation requires its transmembrane domain, but not its cytoplasmic domain, and little is known about the role of this domain in vivo. To investigate, we used CRISPR-Cas9 to mutate the endogenous Adam17 locus in mice to produce a mutant ADAM17 lacking its cytoplasmic domain (Adam17Δcyto). Homozygous Adam17Δcyto animals were born at a Mendelian ratio and survived into adulthood with slightly wavy hair and curled whiskers, consistent with defects in ADAM17/EGFR signaling. At birth, Adam17Δcyto mice resembled Adam17−/− mice in that they had open eyes and enlarged semilunar heart valves, but they did not have bone growth plate defects. The deletion of the cytoplasmic domain resulted in strongly decreased ADAM17 protein levels in all tissues and cells examined, providing a likely cause for the hypomorphic phenotype. In functional assays, Adam17Δcyto mouse embryonic fibroblasts and bone-marrow-derived macrophages had strongly reduced ADAM17 activity, consistent with the reduced protein levels. Nevertheless, ADAM17Δcyto could be stimulated by PMA, a well-characterized posttranslational activator of ADAM17, corroborating that the cytoplasmic domain of endogenous ADAM17 is not required for its rapid response to PMA. Taken together, these results provide the first evidence that the cytoplasmic domain of ADAM17 plays a pivotal role in vivo in regulating ADAM17 levels and function.
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Affiliation(s)
- Jose Lora
- Physiology, Biophysics and Systems Biology Program, Weill Cornell Medicine, New York, New York, USA; Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York, USA
| | - Gisela Weskamp
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York, USA
| | - Thomas M Li
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, New York, USA
| | - Thorsten Maretzky
- Inflammation Program and Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Dorjee T N Shola
- CRISPR and Genome Editing Resource Center, Rockefeller University, New York, New York, USA
| | - Sébastien Monette
- Tri-Institutional Laboratory of Comparative Pathology, Sloan-Kettering Institute, New York, New York, USA
| | - Stefan F Lichtenthaler
- German Center for Neurodegenerative Diseases (DZNE), Technical University of Munich, Munich, Germany; Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Technical University of Munich, Munich, Germany; Institute for Advanced Study, Technical University of Munich, Garching, Germany
| | - Theresa T Lu
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, New York, USA; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York, USA
| | - Chingwen Yang
- CRISPR and Genome Editing Resource Center, Rockefeller University, New York, New York, USA
| | - Carl P Blobel
- Physiology, Biophysics and Systems Biology Program, Weill Cornell Medicine, New York, New York, USA; Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York, USA; Institute for Advanced Study, Technical University of Munich, Garching, Germany; Department of Medicine, Weill Cornell Medicine, New York, New York, USA; Department of Biophysics, Physiology and Systems Biology, Weill Cornell Medicine, New York, New York, USA.
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31
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Carnevalli LS, Ghadially H, Barry ST. Therapeutic Approaches Targeting the Natural Killer- Myeloid Cell Axis in the Tumor Microenvironment. Front Immunol 2021; 12:633685. [PMID: 33953710 PMCID: PMC8092119 DOI: 10.3389/fimmu.2021.633685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/29/2021] [Indexed: 01/21/2023] Open
Abstract
Immunotherapy has transformed cancer treatment by promoting durable clinical responses in a proportion of patients; however, treatment still fails in many patients. Innate immune cells play a key role in the response to immunotherapy. Crosstalk between innate and adaptive immune systems drives T-cell activation but also limits immunotherapy response, as myeloid cells are commonly associated with resistance. Hence, innate cells have both negative and positive effects within the tumor microenvironment (TME), and despite investment in early clinical trials targeting innate cells, they have seen limited success. Suppressive myeloid cells facilitate metastasis and immunotherapy resistance through TME remodeling and inhibition of adaptive immune cells. Natural killer (NK) cells, in contrast, secrete inflammatory cytokines and directly kill transformed cells, playing a key immunosurveillance role in early tumor development. Myeloid and NK cells show reciprocal crosstalk, influencing myeloid cell functional status or antigen presentation and NK effector function, respectively. Crosstalk between myeloid cells and the NK immune network in the TME is especially important in the context of therapeutic intervention. Here we discuss how myeloid and NK cell interactions shape anti-tumor responses by influencing an immunosuppressive TME and how this may influence outcomes of treatment strategies involving drugs that target myeloid and NK cells.
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MESH Headings
- Animals
- Antineoplastic Agents, Immunological/adverse effects
- Antineoplastic Agents, Immunological/therapeutic use
- Cell Communication/drug effects
- Humans
- Immune Checkpoint Inhibitors/adverse effects
- Immune Checkpoint Inhibitors/therapeutic use
- Immunity, Cellular/drug effects
- Immunity, Humoral/drug effects
- Immunotherapy
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Lymphocytes, Tumor-Infiltrating/drug effects
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Myeloid-Derived Suppressor Cells/drug effects
- Myeloid-Derived Suppressor Cells/immunology
- Myeloid-Derived Suppressor Cells/metabolism
- Neoplasms/immunology
- Neoplasms/metabolism
- Neoplasms/pathology
- Neoplasms/therapy
- Tumor Escape/drug effects
- Tumor Microenvironment/drug effects
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Affiliation(s)
| | | | - Simon T. Barry
- Early Oncology, Research and Development, AstraZeneca, Cambridge, United Kingdom
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32
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Chen H, Lin X, Liu H, Huang C, Li R, Ai J, Wei J, Xiao S. HMGB1 Translocation is Associated with Tumor-Associated Myeloid Cells and Involved in the Progression of Fibroblastic Sarcoma. Pathol Oncol Res 2021; 27:608582. [PMID: 34257571 PMCID: PMC8262203 DOI: 10.3389/pore.2021.608582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/26/2021] [Indexed: 11/13/2022]
Abstract
The morphological variability and genetic complexity of fibroblastic sarcoma makes its diagnosis and treatment a challenge. High-mobility group box 1 protein (HMGB1), which functions as a DNA chaperone and a prototypical damage-associated molecular pattern, plays a paradoxical role in cancer. However, the expression pattern and role of HMGB1 in fibroblastic sarcomas is ill defined. By immunostaining of 95 tissue microarray cores of fibroblastic sarcomas, HMGB1 was found to be expressed in most tumor tissues. Nuclear HMGB1 translocation to cytoplasm was observed both in tumor cells and vascular endothelial cells. A visible number of tumor-associated myeloid cells including CD68+ and CD163+ macrophages and CD33+ myeloid cells were also detected in most tumor tissues. HMGB1 translocation was not only associated with CD68, CD163, and CD33 density, but also with disease progression. These results imply that HMGB1, an important regulator of the tumor microenvironment, is associated with tumor-associated myeloid cells and involved in the progression of fibroblastic sarcomas; HMGB1 may serve as a promising prognostic biomarker and a potential therapeutic target for fibroblastic sarcoma.
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Affiliation(s)
- Huoying Chen
- Prenatal Diagnosis Center, Guangdong Second Provincial General Hospital, Guangdong Provincial Emergency Hospital, Guangzhou, China.,Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Xiaoying Lin
- Prenatal Diagnosis Center, Guangdong Second Provincial General Hospital, Guangdong Provincial Emergency Hospital, Guangzhou, China
| | - Hongbo Liu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Cheng Huang
- Prenatal Diagnosis Center, Guangdong Second Provincial General Hospital, Guangdong Provincial Emergency Hospital, Guangzhou, China
| | - Rong Li
- Prenatal Diagnosis Center, Guangdong Second Provincial General Hospital, Guangdong Provincial Emergency Hospital, Guangzhou, China
| | - Jie Ai
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Jiaxue Wei
- Prenatal Diagnosis Center, Guangdong Second Provincial General Hospital, Guangdong Provincial Emergency Hospital, Guangzhou, China
| | - Shengjun Xiao
- Department of Pathology, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
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33
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McBride MA, Patil TK, Bohannon JK, Hernandez A, Sherwood ER, Patil NK. Immune Checkpoints: Novel Therapeutic Targets to Attenuate Sepsis-Induced Immunosuppression. Front Immunol 2021; 11:624272. [PMID: 33613563 PMCID: PMC7886986 DOI: 10.3389/fimmu.2020.624272] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/16/2020] [Indexed: 12/11/2022] Open
Abstract
Sepsis is a leading cause of death in intensive care units and survivors develop prolonged immunosuppression and a high incidence of recurrent infections. No definitive therapy exists to treat sepsis and physicians rely on supportive care including antibiotics, intravenous fluids, and vasopressors. With the rising incidence of antibiotic resistant microbes, it is becoming increasingly critical to discover novel therapeutics. Sepsis-induced leukocyte dysfunction and immunosuppression is recognized as an important contributor towards increased morbidity and mortality. Pre-clinical and clinical studies show that specific cell surface inhibitory immune checkpoint receptors and ligands including PD-1, PD-L1, CTLA4, BTLA, TIM3, OX40, and 2B4 play important roles in the pathophysiology of sepsis by mediating a fine balance between host immune competency and immunosuppression. Pre-clinical studies targeting the inhibitory effects of these immune checkpoints have demonstrated reversal of leukocyte dysfunction and improved host resistance of infection. Measurement of immune checkpoint expression on peripheral blood leukocytes may serve as a means of stratifying patients to direct individualized therapy. This review focuses on advances in our understanding of the role of immune checkpoints in the host response to infections, and the potential clinical application of therapeutics targeting the inhibitory immune checkpoint pathways for the management of septic patients.
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Affiliation(s)
- Margaret A. McBride
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Tazeen K. Patil
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Julia K. Bohannon
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Antonio Hernandez
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Edward R. Sherwood
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Naeem K. Patil
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, United States
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34
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Ding ZC, Aboelella NS, Bryan L, Shi H, Zhou G. The Monocytes That Repopulate in Mice After Cyclophosphamide Treatment Acquire a Neutrophil Precursor Gene Signature and Immunosuppressive Activity. Front Immunol 2021; 11:594540. [PMID: 33569051 PMCID: PMC7868404 DOI: 10.3389/fimmu.2020.594540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/07/2020] [Indexed: 12/21/2022] Open
Abstract
Cyclophosphamide (CTX) is a major component of the chemotherapy conditioning regimens used in the clinic to prepare cancer patients for hematopoietic stem cell transplantation or adoptive T cell therapy. Previous studies have shown that CTX given at nonmyeloablative doses in mice and patients leads to expansion of myeloid cells within which the monocytic subset exhibits immunosuppressive activity. However, the ontogeny and gene expression signature of these CTX-induced monocytes are not well-defined. Here, we report that the expansion of myeloid cells is a default process intrinsic to hematopoietic recovery after chemotherapy. During this process, the monocytes repopulated in mice acquire immunosuppressive activity, which can persist long after cessation of chemotherapy. Moreover, monocytes acquire a gene signature characteristic of neutrophil precursors, marked by increased proliferative capability and elevated expressions of multiple primary and secondary granules. We provide evidence that CTX-induced myeloid cell expansion is regulated by DNA methyltransferase 1 (Dnmt1) and dependent on chemotherapy-induced microbial translocation. These findings help advance our understanding of the differentiation, heterogeneity, and function of myeloid cells repopulating after chemotherapy.
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Affiliation(s)
- Zhi-Chun Ding
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Nada S Aboelella
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Locke Bryan
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Huidong Shi
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States
| | - Gang Zhou
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, United States.,Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, United States
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35
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Filippou PS, Karagiannis GS. Editorial: Revisiting the Metastatic Cascade-Putting Myeloid Cells Into Context. Front Oncol 2021; 10:631278. [PMID: 33425772 PMCID: PMC7786308 DOI: 10.3389/fonc.2020.631278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 11/27/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Panagiota S Filippou
- School of Health & Life Sciences, Teesside University, Middlesbrough, United Kingdom.,National Horizons Centre, Teesside University, Darlington, United Kingdom
| | - George S Karagiannis
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY, United States.,Integrated Imaging Program, Albert Einstein College of Medicine, Bronx, NY, United States.,Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, United States
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36
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Kellar GG, Barrow KA, Rich LM, Debley JS, Wight TN, Ziegler SF, Reeves SR. Loss of versican and production of hyaluronan in lung epithelial cells are associated with airway inflammation during RSV infection. J Biol Chem 2021; 296:100076. [PMID: 33187989 PMCID: PMC7949086 DOI: 10.1074/jbc.ra120.016196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/10/2020] [Accepted: 11/13/2020] [Indexed: 12/21/2022] Open
Abstract
Airway inflammation is a critical feature of lower respiratory tract infections caused by viruses such as respiratory syncytial virus (RSV). A growing body of literature has demonstrated the importance of extracellular matrix changes such as the accumulation of hyaluronan (HA) and versican in the subepithelial space in promoting airway inflammation; however, whether these factors contribute to airway inflammation during RSV infection remains unknown. To test the hypothesis that RSV infection promotes inflammation via altered HA and versican production, we studied an ex vivo human bronchial epithelial cell (BEC)/human lung fibroblast (HLF) coculture model. RSV infection of BEC/HLF cocultures led to decreased hyaluronidase expression by HLFs, increased accumulation of HA, and enhanced adhesion of U937 cells as would be expected with increased HA. HLF production of versican was not altered following RSV infection; however, BEC production of versican was significantly downregulated following RSV infection. In vivo studies with epithelial-specific versican-deficient mice [SPC-Cre(+) Vcan-/-] demonstrated that RSV infection led to increased HA accumulation compared with control mice, which also coincided with decreased hyaluronidase expression in the lung. SPC-Cre(+) Vcan-/- mice demonstrated enhanced recruitment of monocytes and neutrophils in bronchoalveolar lavage fluid and increased neutrophils in the lung compared with SPC-Cre(-) RSV-infected littermates. Taken together, these data demonstrate that altered extracellular matrix accumulation of HA occurs following RSV infection and may contribute to airway inflammation. In addition, loss of epithelial expression of versican promotes airway inflammation during RSV infection further demonstrating that versican's role in inflammatory regulation is complex and dependent on the microenvironment.
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Affiliation(s)
- Gerald G Kellar
- Department of Defense, United States Army, Washington, USA; Benaroya Research Institute, Seattle, Washington, USA; Department of Immunology, University of Washington, Seattle, Washington, USA
| | - Kaitlyn A Barrow
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, Washington, USA
| | - Lucille M Rich
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, Washington, USA
| | - Jason S Debley
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, Washington, USA; Division of Pulmonary and Sleep Medicine, Department of Pediatrics, University of Washington, Seattle, Washington, USA
| | | | - Steven F Ziegler
- Benaroya Research Institute, Seattle, Washington, USA; Department of Immunology, University of Washington, Seattle, Washington, USA
| | - Stephen R Reeves
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, Washington, USA; Division of Pulmonary and Sleep Medicine, Department of Pediatrics, University of Washington, Seattle, Washington, USA.
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37
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Kwack KH, Lamb NA, Bard JE, Kramer ED, Zhang L, Abrams SI, Kirkwood KL. Discovering Myeloid Cell Heterogeneity in Mandibular Bone - Cell by Cell Analysis. Front Physiol 2021; 12:731549. [PMID: 34658914 PMCID: PMC8514701 DOI: 10.3389/fphys.2021.731549] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 09/06/2021] [Indexed: 01/28/2023] Open
Abstract
The myeloid-derived bone marrow progenitor populations from different anatomical locations are known to have diverse osteoclastogenesis potential. Specifically, myeloid progenitors from the tibia and femur have increased osteoclast differentiation potential compared to myeloid progenitors from the alveolar process. In this study, we explored the differences in the myeloid lineage progenitor cell populations in alveolar (mandibular) bone versus long (femur) bone using flow cytometry and high-throughput single cell RNA sequencing (scRNA-seq) to provide a comprehensive transcriptional landscape. Results indicate that mandibular bone marrow-derived cells exhibit consistent deficits in myeloid differentiation, including significantly fewer myeloid-derived suppressor cell (MDSC)-like populations (CD11b+Ly6C+, CD11b+Ly6G+), as well as macrophages (CD11b+F4/80+). Although significantly fewer in number, MDSCs from mandibular bone exhibited increased immunosuppressive activity compared to MDSCs isolated from long bone. Using flow cytometry panels specific for bone marrow progenitors, analysis of hematopoietic stem cells showed no defects in mandibular bone marrow in LSK (Lin-Sca1+cKit+) cell and LK (Lin-Sca1-cKit+) cell populations. While there was no significant difference in granulocyte progenitors, the granulocyte-monocyte progenitors and monocyte progenitor population were significantly decreased in the mandibular bone marrow. T-lymphocyte subsets were not significantly different between mandibular and femoral bone, except for CD4+CD25+Foxp3+ regulatory T lymphocytes, which were significantly increased in the mandible. In addition, B lymphocytes were significantly increased in mandible. Single cell RNA sequencing from mandible and femur BM revealed distinct differences in transcriptomic profiles in myeloid populations establishing previously unappreciated aspects of mandibular bone marrow populations. These analyses reveal site-specific differences in the myeloid progenitor cellular composition and transcriptional programs providing a deeper appreciation of the complex differences in myeloid cell heterogeneity from different anatomical bone marrow sites.
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Affiliation(s)
- Kyu Hwan Kwack
- Department of Oral Biology, University at Buffalo, The State University of New York, Buffalo, NY, United States
| | - Natalie A. Lamb
- Genomics and Bioinformatics Core, New York State Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY, United States
| | - Jonathan E. Bard
- Genomics and Bioinformatics Core, New York State Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY, United States
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, United States
| | - Elliot D. Kramer
- Department of Medicine, University at Buffalo, Buffalo, NY, United States
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Lixia Zhang
- Department of Oral Biology, University at Buffalo, The State University of New York, Buffalo, NY, United States
| | - Scott I. Abrams
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Keith L. Kirkwood
- Department of Oral Biology, University at Buffalo, The State University of New York, Buffalo, NY, United States
- Department of Head and Neck, Plastic and Reconstructive Surgery, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
- *Correspondence: Keith L. Kirkwood,
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Lee SJ, Wang W, Jin L, Lu X, Gao L, Chen Y, Liu T, Emery D, Vukmanic E, Liu Y, Kaplan HJ, Dean DC. Rod photoreceptor clearance due to misfolded rhodopsin is linked to a DAMP-immune checkpoint switch. J Biol Chem 2021; 296:100102. [PMID: 33214223 PMCID: PMC7949052 DOI: 10.1074/jbc.ra120.016053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/13/2020] [Accepted: 11/19/2020] [Indexed: 01/19/2023] Open
Abstract
Chronic endoplasmic reticulum stress resulting from misfolding of the visual pigment rhodopsin (RHO) can lead to loss of rod photoreceptors, which initiates retinitis pigmentosa, characterized initially by diminished nighttime and peripheral vision. Cone photoreceptors depend on rods for glucose transport, which the neurons use for assembly of visual pigment-rich structures; as such, loss of rods also leads to a secondary loss of cone function, diminishing high-resolution color vision utilized for tasks including reading, driving, and facial recognition. If dysfunctional rods could be maintained to continue to serve this secondary cone preservation function, it might benefit patients with retinitis pigmentosa, but the mechanisms by which rods are removed are not fully established. Using pigs expressing mutant RHO, we find that induction of a danger-associated molecular pattern (DAMP) "eat me" signal on the surface of mutant rods is correlated with targeting the live cells for (PrCR) by retinal myeloid cells. Glucocorticoid therapy leads to replacement of this DAMP with a "don't eat me" immune checkpoint on the rod surface and inhibition of PrCR. Surviving rods then continue to promote glucose transport to cones, maintaining their viability.
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Affiliation(s)
- Sang Joon Lee
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Ophthalmology, Kosin University College of Medicine, Seo-gu, Busan, Korea
| | - Wei Wang
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA
| | - Lei Jin
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China
| | - Xiaoqin Lu
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Medicine, University of Louisville Health Sciences Center, Louisville, Kentucky, USA
| | - Lei Gao
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yao Chen
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China
| | - Tingting Liu
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China
| | - Douglas Emery
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Medicine, University of Louisville Health Sciences Center, Louisville, Kentucky, USA
| | - Eric Vukmanic
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Medicine, University of Louisville Health Sciences Center, Louisville, Kentucky, USA
| | - Yongqing Liu
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Medicine, University of Louisville Health Sciences Center, Louisville, Kentucky, USA
| | - Henry J Kaplan
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA
| | - Douglas C Dean
- Department of Ophthalmology and Visual Sciences, University of Louisville Health Sciences Center, Louisville, Kentucky, USA; Department of Medicine, University of Louisville Health Sciences Center, Louisville, Kentucky, USA.
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Han N, Pan Z, Huang Z, Chang Y, Hou F, Liu G, Yang R, Bi Y. Effects of Myeloid Hif-1β Deletion on the Intestinal Microbiota in Mice under Environmental Hypoxia. Infect Immun 2020; 89:e00474-20. [PMID: 33106294 DOI: 10.1128/IAI.00474-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/21/2020] [Indexed: 01/30/2023] Open
Abstract
External environmental factors can cause an imbalance in intestinal flora. For people living in the extremes of a plateau climate, lack of oxygen is a primary health challenge that leads to a series of reactions. We wondered how intestinal microorganisms might change in a simulated plateau environment and what changes might occur in the host organism and intestinal microorganisms in the absence of hypoxia-related factors. In this study, mice carrying a knockout of hypoxia-inducible factor 1β (Hif-1β) in myeloid cells and wild-type mice were raised in a composite hypoxic chamber to simulate a plateau environment at 5,000 m of elevation for 14 days. The mice carrying the myeloid Hif-1β deletion displayed aggravated hypoxic phenotypes in comparison to and significantly greater weight loss and significantly higher cardiac index values than the wild-type group. The levels of some cytokines increased in the hypoxic environment. Analysis of 16S rRNA sequencing results showed that hypoxia had a significant effect on the gut microbiota in both wild-type and Hif-1β-deficient mice, especially on the first day. The levels of members of the Bacteroidaceae family increased continuously from day 1 to day 14 in Hif-1β deletion mice, and they represented an obviously different group of bacteria at day 14 compared with the wild-type mice. Butyrate-producing bacteria, such as Butyricicoccus, were found in wild-type mice only after 14 days in the hypoxic environment. In conclusion, hypoxia caused heart enlargement, greater weight loss, and obvious microbial imbalance in myeloid Hif-1β-deficient mice. This study revealed genetic and microecological pathways for research on mechanisms of hypoxia.
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Abstract
Cancer immunotherapy has shifted the paradigm in cancer therapy by revitalizing immune responses against tumor cells. Specifically, in primary tumors cancer cells evolve in an immunosuppressive microenvironment, which protects them from immune attack. However, during tumor progression, some cancer cells leave the protective tumor mass, disseminating and seeding secondary organs. These initial disseminated tumor cells (DTCs) should potentially be susceptible to recognition by the immune system in the new host tissues. Although Natural Killer or T cells eliminate some of these DTCs, a fraction escape anti-tumor immunity and survive, thus giving rise to metastatic colonization. How DTCs interact with immune cells and the underpinnings that regulate imperfect immune responses during tumor dissemination remain poorly understood. Uncovering such mechanisms of immune evasion may contribute to the development of immunotherapy specifically targeting DTCs. Here we review current knowledge about systemic and site-specific immune-cancer crosstalk in the early steps of metastasis formation. Moreover, we highlight how conventional cancer therapies can shape the pre-metastatic niche enabling immune escape of newly arrived DTCs.
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Affiliation(s)
- Julien Schaller
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02115, USA;
- Department of Fundamental Oncology, University of Lausanne–Lausanne University Hospital, 1011 Lausanne, Switzerland
| | - Judith Agudo
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02115, USA;
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
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Lumb FE, Doonan J, Corbet M, Pineda MA, M Harnett M, Harnett W. Development of Acanthocheilonema viteae in Meriones shawi: Absence of microfilariae and production of active ES-62. Parasite Immunol 2020; 43:e12803. [PMID: 33091157 PMCID: PMC7988569 DOI: 10.1111/pim.12803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 12/27/2022]
Abstract
AIMS ES-62 is a well-studied anti-inflammatory molecule secreted by L4-adult stage Acanthocheilonema viteae. We maintain the life cycle of A viteae using Meriones libycus as the definitive host. Here, we investigated whether the full life cycle could be maintained, and functional ES-62 produced, in a related jird species-Meriones shawi. METHODS AND RESULTS Adult worms were produced in comparable numbers in the two species, but very few microfilariae (MF) were observed in the M shawi bloodstream. M shawi ES-62 produced ex vivo was functional and protective in a mouse model of arthritis. Myeloid-derived cells from naïve and infected jirds of both species were compared with respect to ROS production and osteoclast generation, and some differences between the two species in both the absence and presence of infection were observed. CONCLUSIONS The life cycle of A viteae cannot be successfully completed in M shawi jirds but L3 stage worms develop to adulthood and produce functional ES-62. Preliminary investigation into jird immune responses suggests that infection can differentially modulate myeloid responses in the two species. However, species-specific reagents are required to understand the complex interplay between A viteae and its host and to explain the lack of circulating MF in infected M shawi jirds.
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Affiliation(s)
- Felicity E Lumb
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - James Doonan
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Marlene Corbet
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Miguel A Pineda
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Margaret M Harnett
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - William Harnett
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
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Abstract
Significance: Abdominal aortic aneurysm (AAA) is a potentially fatal condition, featuring the possibility of high-mortality rupture. To date, prophylactic surgery by means of open surgical repair or endovascular aortic repair at specific thresholds is considered standard therapy. Both surgical options hold different risk profiles of short- and long-term morbidity and mortality. Targeting early stages of AAA development to decelerate disease progression is desirable. Recent Advances: Understanding the pathomechanisms that initiate formation, maintain growth, and promote rupture of AAA is crucial to developing new medical therapeutic options. Inflammatory cells, in particular macrophages, have been investigated for their contribution to AAA disease for decades, whereas evidence on lymphocytes, mast cells, and neutrophils is sparse. Recently, there has been increasing interest in noncoding RNAs (ncRNAs) and their involvement in disease development, including AAA. Critical Issues: The current evidence on myeloid cells and ncRNAs in AAA largely originates from small animal models, making clinical extrapolation difficult. Although it is feasible to collect surgical human AAA samples, these tissues reflect end-stage disease, preventing examination of critical mechanisms behind early AAA formation. Future Directions: Gaining more insight into how myeloid cells and ncRNAs contribute to AAA disease, particularly in early stages, might suggest nonsurgical AAA treatment options. The utilization of large animal models might be helpful in this context to help bridge translational results to humans.
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Affiliation(s)
- Christoph Knappich
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Joshua M Spin
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Hans-Henning Eckstein
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Philip S Tsao
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Lars Maegdefessel
- Department for Vascular and Endovascular Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.,Department of Medicine, Karolinska Institute, Stockholm, Sweden
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43
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Eikmans M, van der Zwan A, Claas FHJ, van der Hoorn ML, Heidt S. Got your mother in a whirl: The role of maternal T cells and myeloid cells in pregnancy. HLA 2020; 96:561-579. [PMID: 32841539 DOI: 10.1111/tan.14055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 07/09/2020] [Accepted: 07/29/2020] [Indexed: 12/22/2022]
Abstract
Appropriate development of the placenta is required for healthy pregnancy to occur. After implantation of the fertilized blastocyst, fetal trophoblasts invade the endometrium and myometrium of the mother's uterus to establish placentation. In this process, fetal trophoblasts encounter maternal immune cells. In this review, we focus on the role of maternal T cells and myeloid cells (macrophages, dendritic cells) in pregnancy and their interaction with trophoblasts. To retain immunologic tolerization, trophoblasts evade immune recognition by T cells and produce factors that modulate their phenotype and function. On top of that, the local environment at the maternal-fetal interface favors expansion of regulatory T cells. Macrophages and dendritic cells are essential in maintaining a healthy pregnancy. They produce soluble factors and act as antigen-presenting cells, thereby interacting with T cells. Herein, M2 macrophages, immature dendritic cells, CD4+ Th2 cells, and regulatory T cells represent an axis that maintains a local immune tolerant environment. We consider outstanding issues concerning these cell types and their pathways, which need to be addressed in future investigations. Data from recent single-cell sequencing experiments of the placental bed, to study heterogeneity of maternal immune cells and to predict cell-cell interactions, are discussed. Novel ways for long-term culturing of primary trophoblasts allow for cell-cell interaction studies in a functional way. Future directions should include study of the functionality of currently known and newly identified decidual immune cell subsets in healthy and complicated pregnancies, and their interaction with and modulation by trophoblast cells.
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Affiliation(s)
- Michael Eikmans
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anita van der Zwan
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | - Frans H J Claas
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Sebastiaan Heidt
- Department of Immunology, Leiden University Medical Center, Leiden, The Netherlands
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44
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Cirovic B, de Bree LCJ, Groh L, Blok BA, Chan J, van der Velden WJFM, Bremmers MEJ, van Crevel R, Händler K, Picelli S, Schulte-Schrepping J, Klee K, Oosting M, Koeken VACM, van Ingen J, Li Y, Benn CS, Schultze JL, Joosten LAB, Curtis N, Netea MG, Schlitzer A. BCG Vaccination in Humans Elicits Trained Immunity via the Hematopoietic Progenitor Compartment. Cell Host Microbe 2020; 28:322-334.e5. [PMID: 32544459 PMCID: PMC7295478 DOI: 10.1016/j.chom.2020.05.014] [Citation(s) in RCA: 215] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/16/2020] [Accepted: 05/12/2020] [Indexed: 01/13/2023]
Abstract
Induction of trained immunity by Bacille-Calmette-Guérin (BCG) vaccination mediates beneficial heterologous effects, but the mechanisms underlying its persistence and magnitude remain elusive. In this study, we show that BCG vaccination in healthy human volunteers induces a persistent transcriptional program connected to myeloid cell development and function within the hematopoietic stem and progenitor cell (HSPC) compartment in the bone marrow. We identify hepatic nuclear factor (HNF) family members 1a and b as crucial regulators of this transcriptional shift. These findings are corroborated by higher granulocyte numbers in BCG-vaccinated infants, HNF1 SNP variants that correlate with trained immunity, and elevated serum concentrations of the HNF1 target alpha-1 antitrypsin. Additionally, transcriptomic HSPC remodeling was epigenetically conveyed to peripheral CD14+ monocytes, displaying an activated transcriptional signature three months after BCG vaccination. Taken together, transcriptomic, epigenomic, and functional reprogramming of HSPCs and peripheral monocytes is a hallmark of BCG-induced trained immunity in humans.
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Affiliation(s)
- Branko Cirovic
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - L Charlotte J de Bree
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands; Research Center for Vitamins and Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark; Odense Patient Data Explorative Network, University of Southern Denmark/Odense University Hospital, Odense, Denmark
| | - Laszlo Groh
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands
| | - Bas A Blok
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands; Research Center for Vitamins and Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark; Odense Patient Data Explorative Network, University of Southern Denmark/Odense University Hospital, Odense, Denmark
| | - Joyce Chan
- Department of Paediatrics, The University of Melbourne & Murdoch Children's Research Institute, The Royal Children's Hospital Melbourne, Parkville, Australia
| | | | - M E J Bremmers
- Department of Haematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Reinout van Crevel
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands
| | - Kristian Händler
- Single Cell Genomics and Epigenomics Unit at the German Center for Neurodegenerative Diseases and the University of Bonn, 53175 Bonn, Germany
| | - Simone Picelli
- Single Cell Genomics and Epigenomics Unit at the German Center for Neurodegenerative Diseases and the University of Bonn, 53175 Bonn, Germany
| | - Jonas Schulte-Schrepping
- Genomics and Immunoregulation, Life & Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Kathrin Klee
- Genomics and Immunoregulation, Life & Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Marije Oosting
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands
| | - Valerie A C M Koeken
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands
| | - Jakko van Ingen
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Yang Li
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands; Centre for Individualised Infection Medicine (CiiM) & TWINCORE, joint ventures between the Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), 30625 Hannover, Germany
| | - Christine S Benn
- Research Center for Vitamins and Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark; Odense Patient Data Explorative Network, University of Southern Denmark/Odense University Hospital, Odense, Denmark
| | - Joachim L Schultze
- Single Cell Genomics and Epigenomics Unit at the German Center for Neurodegenerative Diseases and the University of Bonn, 53175 Bonn, Germany; Genomics and Immunoregulation, Life & Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands
| | - Nigel Curtis
- Department of Paediatrics, The University of Melbourne & Murdoch Children's Research Institute, The Royal Children's Hospital Melbourne, Parkville, Australia
| | - Mihai G Netea
- Department of Internal Medicine, Radboud Institute of Molecular Life Sciences (RIMLS) and Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre, 6526 GA Nijmegen, the Netherlands; Immunology and Metabolism, Life & Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany.
| | - Andreas Schlitzer
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany; Single Cell Genomics and Epigenomics Unit at the German Center for Neurodegenerative Diseases and the University of Bonn, 53175 Bonn, Germany.
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45
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Affiliation(s)
- Shuai Jiang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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46
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Lei A, He Y, Yang Q, Li X, Li R. Role of myeloid cells in the regulation of group 2 innate lymphoid cell-mediated allergic inflammation. Immunology 2020; 161:18-24. [PMID: 32609880 DOI: 10.1111/imm.13232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/15/2020] [Accepted: 06/20/2020] [Indexed: 12/11/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) are an important component of the innate immune system that execute important effector functions at barrier surfaces, such as lung and skin. Like T helper type 2 cells, ILC2s are able to release high amounts of type 2 cytokines that are essential in inducing allergic inflammation and eliminating helminth infections. The past few years have contributed to our better understanding of the interactions between ILC2s and other cells of the immune system via soluble factors or in a cell-cell contact manner. Myeloid cells, including mononuclear leukocytes and polymorphonuclear leukocytes, are excellent sensors of tissue damage and infection and can influence ILC2 responses in the process of allergic inflammation. In this review, we summarize recent insights on how myeloid cell subsets regulate ILC2 activation with focus on soluble factors in the context of allergic inflammation.
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Affiliation(s)
- Aihua Lei
- Institute of Pathogenic Biology, Hengyang Medical College, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, China
| | - Yumei He
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Qiong Yang
- Chronic Disease Laboratory, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, China
| | - Xiaofang Li
- Institute of Pathogenic Biology, Hengyang Medical College, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, China
| | - Ranhui Li
- Institute of Pathogenic Biology, Hengyang Medical College, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, China
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47
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Bai R, Sun D, Chen M, Shi X, Luo L, Yao Z, Liu Y, Ge X, Gao X, Hu GF, Zhou W, Sheng J, Xu Z. Myeloid cells protect intestinal epithelial barrier integrity through the angiogenin/plexin-B2 axis. EMBO J 2020; 39:e103325. [PMID: 32510170 DOI: 10.15252/embj.2019103325] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 03/29/2020] [Accepted: 04/06/2020] [Indexed: 12/15/2022] Open
Abstract
Communication between myeloid cells and epithelium plays critical role in maintaining intestinal epithelial barrier integrity. Myeloid cells interact with intestinal epithelial cells (IECs) by producing various mediators; however, the molecules mediating their crosstalk remain incompletely understood. Here, we report that deficiency of angiogenin (Ang) in mouse myeloid cells caused impairment of epithelial barrier integrity, leading to high susceptibility to DSS-induced colitis. Mechanistically, myeloid cell-derived angiogenin promoted IEC survival and proliferation through plexin-B2-mediated production of tRNA-derived stress-induced small RNA (tiRNA) and transcription of ribosomal RNA (rRNA), respectively. Moreover, treatment with recombinant angiogenin significantly attenuated the severity of experimental colitis. In human samples, the expression of angiogenin was significantly down-regulated in patients with inflammatory bowel disease (IBD). Collectively, we identified, for the first time to our knowledge, a novel mediator of myeloid cell-IEC crosstalk in maintaining epithelial barrier integrity, suggesting that angiogenin may serve as a new preventive agent and therapeutic target for IBD.
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Affiliation(s)
- Rongpan Bai
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China
| | - Desen Sun
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Muxiong Chen
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoliang Shi
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liang Luo
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhengrong Yao
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yaxin Liu
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaolong Ge
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiangwei Gao
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guo-Fu Hu
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA
| | - Wei Zhou
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jinghao Sheng
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China.,Program in Molecular and Cellular Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhengping Xu
- Institute of Environmental Medicine, and Cancer Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China.,Program in Molecular and Cellular Biology, Zhejiang University School of Medicine, Hangzhou, China
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48
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Abstract
Myeloid cells are key components of the tumor microenvironment and critical regulators of disease progression. These innate immune cells are usually short-lived and require constant replenishment. Emerging evidence indicates that tumors alter the host hematopoietic system and induce the biased differentiation of myeloid cells to tip the balance of the systemic immune activities toward tumor-promoting functions. Altered myelopoiesis is not restricted to the bone marrow and also occurs in extramedullary organs. In this review, we outline the recent advances in the field of cancer-associated myelopoiesis, with a focus on the spleen, the major site of extramedullary hematopoiesis in the cancer setting. We discuss the functional specialization, distinct mechanisms, and clinical relevance of cancer-associated myeloid cell generation from early progenitors in the spleen and its potential as a novel therapeutic target.
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Affiliation(s)
- Chong Wu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Qiaomin Hua
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Limin Zheng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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49
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Omahdi Z, Horikawa Y, Nagae M, Toyonaga K, Imamura A, Takato K, Teramoto T, Ishida H, Kakuta Y, Yamasaki S. Structural insight into the recognition of pathogen-derived phosphoglycolipids by C-type lectin receptor DCAR. J Biol Chem 2020; 295:5807-5817. [PMID: 32139512 PMCID: PMC7186165 DOI: 10.1074/jbc.ra120.012491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/02/2020] [Indexed: 01/08/2023] Open
Abstract
The C-type lectin receptors (CLRs) form a family of pattern recognition receptors that recognize numerous pathogens, such as bacteria and fungi, and trigger innate immune responses. The extracellular carbohydrate-recognition domain (CRD) of CLRs forms a globular structure that can coordinate a Ca2+ ion, allowing receptor interactions with sugar-containing ligands. Although well-conserved, the CRD fold can also display differences that directly affect the specificity of the receptors for their ligands. Here, we report crystal structures at 1.8-2.3 Å resolutions of the CRD of murine dendritic cell-immunoactivating receptor (DCAR, or Clec4b1), the CLR that binds phosphoglycolipids such as acylated phosphatidyl-myo-inositol mannosides (AcPIMs) of mycobacteria. Using mutagenesis analysis, we identified critical residues, Ala136 and Gln198, on the surface surrounding the ligand-binding site of DCAR, as well as an atypical Ca2+-binding motif (Glu-Pro-Ser/EPS168-170). By chemically synthesizing a water-soluble ligand analog, inositol-monophosphate dimannose (IPM2), we confirmed the direct interaction of DCAR with the polar moiety of AcPIMs by biolayer interferometry and co-crystallization approaches. We also observed a hydrophobic groove extending from the ligand-binding site that is in a suitable position to interact with the lipid portion of whole AcPIMs. These results suggest that the hydroxyl group-binding ability and hydrophobic groove of DCAR mediate its specific binding to pathogen-derived phosphoglycolipids such as mycobacterial AcPIMs.
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Affiliation(s)
- Zakaria Omahdi
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan; Laboratory of Molecular Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Suita 565-0871, Japan; Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuto Horikawa
- Laboratory of Structural Biology, Graduate School of System Life Sciences, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masamichi Nagae
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan; Laboratory of Molecular Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Suita 565-0871, Japan; Department of Pharmaceutical Sciences, University of Tokyo, Bunkyo-Ku, Tokyo 113-0033, Japan
| | - Kenji Toyonaga
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan; Laboratory of Molecular Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Suita 565-0871, Japan
| | - Akihiro Imamura
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, Gifu 501-1193, Japan; United Graduate School of Agricultural Science, Gifu University, Gifu 501-1193, Japan
| | - Koichi Takato
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, Gifu 501-1193, Japan
| | - Takamasa Teramoto
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hideharu Ishida
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, Gifu 501-1193, Japan; United Graduate School of Agricultural Science, Gifu University, Gifu 501-1193, Japan; Center for Highly Advanced Integration of Nano and Life Sciences, Gifu University, Gifu 501-1193, Japan
| | - Yoshimitsu Kakuta
- Laboratory of Structural Biology, Graduate School of System Life Sciences, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan; Laboratory of Molecular Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Suita 565-0871, Japan; Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Division of Molecular Design, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba 260-8673, Japan.
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50
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Weskamp G, Tüshaus J, Li D, Feederle R, Maretzky T, Swendemann S, Falck-Pedersen E, McIlwain DR, Mak TW, Salmon JE, Lichtenthaler SF, Blobel CP. ADAM17 stabilizes its interacting partner inactive Rhomboid 2 (iRhom2) but not inactive Rhomboid 1 (iRhom1). J Biol Chem 2020; 295:4350-4358. [PMID: 32060096 PMCID: PMC7105298 DOI: 10.1074/jbc.ra119.011136] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 02/04/2020] [Indexed: 11/06/2022] Open
Abstract
The metalloprotease ADAM17 (a disintegrin and metalloprotease 17) is a key regulator of tumor necrosis factor α (TNFα), interleukin 6 receptor (IL-6R), and epidermal growth factor receptor (EGFR) signaling. ADAM17 maturation and function depend on the seven-membrane-spanning inactive rhomboid-like proteins 1 and 2 (iRhom1/2 or Rhbdf1/2). Most studies to date have focused on overexpressed iRhom1 and -2, so only little is known about the properties of the endogenous proteins. Here, we show that endogenous iRhom1 and -2 can be cell surface-biotinylated on mouse embryonic fibroblasts (mEFs), revealing that endogenous iRhom1 and -2 proteins are present on the cell surface and that iRhom2 also is present on the surface of lipopolysaccharide-stimulated primary bone marrow-derived macrophages. Interestingly, very little, if any, iRhom2 was detectable in mEFs or bone marrow-derived macrophages lacking ADAM17, suggesting that iRhom2 is stabilized by ADAM17. By contrast, the levels of iRhom1 were slightly increased in the absence of ADAM17 in mEFs, indicating that its stability does not depend on ADAM17. These findings support a model in which iRhom2 and ADAM17 are obligate binding partners and indicate that iRhom2 stability requires the presence of ADAM17, whereas iRhom1 is stable in the absence of ADAM17.
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Affiliation(s)
- Gisela Weskamp
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York 10021
| | - Johanna Tüshaus
- Institute for Advanced Study, Technical University Munich, 85748 Garching, Germany; Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University Munich, 81675 Munich, Germany; German Center for Neurodegenerative Diseases (DZNE), 81377 Munich, Germany
| | - Daniel Li
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York 10021
| | - Regina Feederle
- German Center for Neurodegenerative Diseases (DZNE), 81377 Munich, Germany; Institute for Diabetes and Obesity, Monoclonal Antibody Core Facility, Helmholtz Zentrum Munich, German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Thorsten Maretzky
- Inflammation Program and Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242
| | - Steven Swendemann
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York 10021
| | - Erik Falck-Pedersen
- Department of Biochemistry, Cellular and Molecular Biology, Weill Cornell Medicine, New York, New York 10021
| | - David R McIlwain
- Baxter Laboratory in Stem Cell Biology, Department of Microbiology and Immunology, Stanford University, Stanford, California 94305
| | - Tak W Mak
- Campbell Family Institute for Breast Cancer Research, Ontario Cancer Institute, University Health Network, Toronto, Ontario M5G 2M9, Canada
| | - Jane E Salmon
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, New York 10021; Department of Medicine, Weill Cornell Medicine, New York, New York 10021
| | - Stefan F Lichtenthaler
- Institute for Advanced Study, Technical University Munich, 85748 Garching, Germany; Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Technical University Munich, 81675 Munich, Germany; German Center for Neurodegenerative Diseases (DZNE), 81377 Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), 81377 Munich, Germany
| | - Carl P Blobel
- Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, New York 10021; Institute for Advanced Study, Technical University Munich, 85748 Garching, Germany; Department of Medicine, Weill Cornell Medicine, New York, New York 10021; Department of Physiology, Biophysics and Systems Biology, Weill Cornell Medicine, New York, New York 10021.
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