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Lodge-Tulloch NA, Paré JF, Couture C, Bernier E, Cotechini T, Girard S, Graham CH. Maternal Innate Immune Reprogramming After Complicated Pregnancy. Am J Reprod Immunol 2024; 92:e13908. [PMID: 39119763 DOI: 10.1111/aji.13908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/19/2024] [Accepted: 07/05/2024] [Indexed: 08/10/2024] Open
Abstract
PROBLEM Preeclampsia (PE) and fetal growth restriction (FGR) are often associated with maternal inflammation and an increased risk of cardiovascular and metabolic disease in the affected mothers. The mechanism responsible for this increased risk of subsequent disease may involve reprogramming of innate immune cells, characterized by epigenetic modifications. METHOD OF STUDY Circulating monocytes from women with PE, FGR, or uncomplicated pregnancies (control) were isolated before labor. Cytokine release from monocytes following exposure to lipopolysaccharide (LPS) and the presence of lysine 4-trimethylated histone 3 (H3K4me3) within TNF promoter sequences were evaluated. Single-cell transcriptomic profiles of circulating monocytes from women with PE or uncomplicated pregnancies were assessed. RESULTS Monocytes from women with PE or FGR exhibited increased IL-10 secretion and decreased IL-1β and GM-CSF secretion in response to LPS. While TNFα secretion was not significantly different in cultures of control monocytes versus those from complicated pregnancies with or without LPS exposure, monocytes from complicated pregnancies had significantly decreased levels of H3K4me3 associated with TNF promoter sequences. Cluster quantification and pathway analysis of differentially expressed genes revealed an increased proportion of anti-inflammatory myeloid cells and a lower proportion of inflammatory non-classical monocytes among the circulating monocyte population in women with PE. CONCLUSIONS Monocytes from women with PE and FGR exhibit an immune tolerance phenotype before initiation of labor. Further investigation is required to determine whether this tolerogenic phenotype persists after the affected pregnancy and contributes to increased risk of subsequent disease.
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Affiliation(s)
| | - Jean-François Paré
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Camille Couture
- Department of Obstetrics and Gynecology, Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA
- Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
- Sainte-Justine Hospital Research Center, Montreal, Quebec, Canada
| | - Elsa Bernier
- Department of Obstetrics and Gynecology, Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA
- Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
- Sainte-Justine Hospital Research Center, Montreal, Quebec, Canada
| | - Tiziana Cotechini
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Sylvie Girard
- Department of Obstetrics and Gynecology, Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA
- Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
- Department of Obstetrics and Gynecology, Université de Montréal, Montreal, Quebec, Canada
| | - Charles H Graham
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
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2
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DeWolf SE, Hawkes AA, Kurian SM, Gorial DE, Hepokoski ML, Almeida SS, Posner IR, McKay DB. Human pulmonary microvascular endothelial cells respond to DAMPs from injured renal tubular cells. Pulm Circ 2024; 14:e12379. [PMID: 38962184 PMCID: PMC11220341 DOI: 10.1002/pul2.12379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 07/05/2024] Open
Abstract
Acute kidney injury (AKI) causes distant organ dysfunction through yet unknown mechanisms, leading to multiorgan failure and death. The lungs are one of the most common extrarenal organs affected by AKI, and combined lung and kidney injury has a mortality as high as 60%-80%. One mechanism that has been implicated in lung injury after AKI involves molecules released from injured kidney cells (DAMPs, or damage-associated molecular patterns) that promote a noninfectious inflammatory response by binding to pattern recognition receptors (PRRs) constitutively expressed on the pulmonary endothelium. To date there are limited data investigating the role of PRRs and DAMPs in the pulmonary endothelial response to AKI. Understanding these mechanisms holds great promise for therapeutics aimed at ameliorating the devastating effects of AKI. In this study, we stimulate primary human microvascular endothelial cells with DAMPs derived from injured primary renal tubular epithelial cells (RTECs) as an ex-vivo model of lung injury following AKI. We show that DAMPs derived from injured RTECs cause activation of Toll-Like Receptor and NOD-Like Receptor signaling pathways as well as increase human primary pulmonary microvascular endothelial cell (HMVEC) cytokine production, cell signaling activation, and permeability. We further show that cytokine production in HMVECs in response to DAMPs derived from RTECs is reduced by the inhibition of NOD1 and NOD2, which may have implications for future therapeutics. This paper adds to our understanding of PRR expression and function in pulmonary HMVECs and provides a foundation for future work aimed at developing therapeutic strategies to prevent lung injury following AKI.
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Affiliation(s)
- Sean E. DeWolf
- Department of Pulmonary and Critical Care MedicineUniversity of California San DiegoSan DiegoCaliforniaUSA
- Department of ImmunologyThe Scripps Research InstituteLa JollaCaliforniaUSA
| | - Alana A. Hawkes
- Department of ImmunologyThe Scripps Research InstituteLa JollaCaliforniaUSA
| | - Sunil M. Kurian
- Scripps Clinic Bio‐Repository & Bio‐Informatics Core, Scripps HealthLa JollaCaliforniaUSA
- Department of SurgeryScripps Clinic and Green HospitalLa JollaCaliforniaUSA
| | - Diana E. Gorial
- Department of ImmunologyThe Scripps Research InstituteLa JollaCaliforniaUSA
| | - Mark L. Hepokoski
- Department of Pulmonary and Critical Care MedicineUniversity of California San DiegoSan DiegoCaliforniaUSA
- Department of Pulmonary and Critical Care MedicineVeterans AdministrationSan DiegoCaliforniaUSA
| | | | - Isabella R. Posner
- Department of ImmunologyThe Scripps Research InstituteLa JollaCaliforniaUSA
| | - Dianne B. McKay
- Department of ImmunologyThe Scripps Research InstituteLa JollaCaliforniaUSA
- Department of SurgeryScripps Clinic and Green HospitalLa JollaCaliforniaUSA
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3
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Orsenigo F, Stewart A, Hammer CP, Clarke E, Simpkin D, Attia H, Rockall T, Gordon S, Martinez FO. Unifying considerations and evidence of macrophage activation mosaicism through human CSF1R and M1/M2 genes. Cell Rep 2024; 43:114352. [PMID: 38870011 DOI: 10.1016/j.celrep.2024.114352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/02/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024] Open
Abstract
Addressing the mononuclear phagocyte system (MPS) and macrophage M1/M2 activation is important in diagnosing hematological disorders and inflammatory pathologies and designing therapeutic tools. CSF1R is a reliable marker to identify all circulating MPS cells and tissue macrophages in humans using a single surface protein. CSF1R permits the quantification and isolation of monocyte and dendritic cell (DC) subsets in conjunction with CD14, CD16, and CD1c and is stable across the lifespan and sexes in the absence of overt pathology. Beyond cell detection, measuring M1/M2 activation in humans poses challenges due to response heterogeneity, transient signaling, and multiple regulation steps for transcripts and proteins. MPS cells respond in a conserved manner to M1/M2 pathways such as interleukin-4 (IL-4), steroids, interferon-γ (IFNγ), and lipopolysaccharide (LPS), for which we propose an ad hoc modular gene expression tool. Signature analysis highlights macrophage activation mosaicism in experimental samples, an emerging concept that points to mixed macrophage activation states in pathology.
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Affiliation(s)
- Federica Orsenigo
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK
| | - Alexander Stewart
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK; Virology Department, Animal and Plant Health Agency, APHA-Weybridge, KT15 3NB Addlestone, UK
| | - Clare P Hammer
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK; Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Emma Clarke
- Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Daniel Simpkin
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK
| | - Hossameldin Attia
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK; Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Timothy Rockall
- Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Siamon Gordon
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan; Sir William Dunn School of Pathology, University of Oxford, OX13RE Oxford, UK
| | - Fernando O Martinez
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK.
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4
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Li C, Cai C, Xu D, Chen X, Song J. TREM1: Activation, signaling, cancer and therapy. Pharmacol Res 2024; 204:107212. [PMID: 38749377 DOI: 10.1016/j.phrs.2024.107212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/12/2024] [Accepted: 05/09/2024] [Indexed: 06/01/2024]
Abstract
Triggering receptor expressed on myeloid cells 1 (TREM1) is a cell surface receptor expressed on neutrophils, monocytes and some tissue macrophages, where it functions as an immunoregulator that controls myeloid cell responses. The activation of TREM1 is suggested to be an upregulation-based, ligands-induced and structural multimerization-mediated process, in which damage- and pathogen-associated molecular patterns play important roles. Activated TREM1 initiates an array of downstream signaling pathways that ultimately result in the production of pro-inflammatory cytokines and chemokines, whereby it functions as an amplifier of inflammation and is implicated in the pathogenesis of many inflammation-associated diseases. Over the past decade, there has been growing evidence for the involvement of TREM1 overactivation in tumor stroma inflammation and cancer progression. Indeed, it was shown that TREM1 promotes tumor progression, immunosuppression, and resistance to therapy by activating tumor-infiltrating myeloid cells. TREM1-deficiency or blockade provide protection against tumors and reverse the resistance to anti-PD-1/PD-L1 therapy and arginine-deprivation therapy in preclinical models. Here, we first review the structure, activation modes and signaling pathways of TREM1 and emphasize the role of soluble TREM1 as a biomarker of infection and cancer. We then focus on the role of TREM1 in cancer and systematically summarize its expression patterns, upregulation mechanisms and functions in tumor development and progression. Lastly, we discuss the therapeutic prospects of TREM1 inhibition, via effective pharmacological inhibitors, in treating cancer and other diseases.
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Affiliation(s)
- Chenyang Li
- Hepatic Surgery Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Clinical Medicine Research Centre for Hepatic Surgery of Hubei Province, Wuhan, Hubei 430030, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei 430030, China
| | - Chujun Cai
- Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Key Laboratory of Cancer Invasion and Metastasis(Ministry of Education), Hubei Key Laboratory of Tumor Invasion and Metastasis, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Dafeng Xu
- Hepatic Surgery Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Clinical Medicine Research Centre for Hepatic Surgery of Hubei Province, Wuhan, Hubei 430030, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei 430030, China
| | - Xiaoping Chen
- Hepatic Surgery Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Clinical Medicine Research Centre for Hepatic Surgery of Hubei Province, Wuhan, Hubei 430030, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei 430030, China; Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, Hubei 430030, China; Key Laboratory of Organ Transplantation, National Health Commission, Wuhan, Hubei 430030, China; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei 430030, China.
| | - Jia Song
- Hepatic Surgery Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; Clinical Medicine Research Centre for Hepatic Surgery of Hubei Province, Wuhan, Hubei 430030, China; Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei 430030, China.
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5
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Caldarelli M, Rio P, Marrone A, Ocarino F, Chiantore M, Candelli M, Gasbarrini A, Gambassi G, Cianci R. Gut-Brain Axis: Focus on Sex Differences in Neuroinflammation. Int J Mol Sci 2024; 25:5377. [PMID: 38791415 PMCID: PMC11120930 DOI: 10.3390/ijms25105377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
In recent years, there has been a growing interest in the concept of the "gut-brain axis". In addition to well-studied diseases associated with an imbalance in gut microbiota, such as cancer, chronic inflammation, and cardiovascular diseases, research is now exploring the potential role of gut microbial dysbiosis in the onset and development of brain-related diseases. When the function of the intestinal barrier is altered by dysbiosis, the aberrant immune system response interacts with the nervous system, leading to a state of "neuroinflammation". The gut microbiota-brain axis is mediated by inflammatory and immunological mechanisms, neurotransmitters, and neuroendocrine pathways. This narrative review aims to illustrate the molecular basis of neuroinflammation and elaborate on the concept of the gut-brain axis by virtue of analyzing the various metabolites produced by the gut microbiome and how they might impact the nervous system. Additionally, the current review will highlight how sex influences these molecular mechanisms. In fact, sex hormones impact the brain-gut microbiota axis at different levels, such as the central nervous system, the enteric nervous one, and enteroendocrine cells. A deeper understanding of the gut-brain axis in human health and disease is crucial to guide diagnoses, treatments, and preventive interventions.
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Affiliation(s)
- Mario Caldarelli
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Pierluigi Rio
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Andrea Marrone
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Francesca Ocarino
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Monica Chiantore
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Marcello Candelli
- Department of Emergency, Anesthesiological and Reanimation Sciences, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Antonio Gasbarrini
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Giovanni Gambassi
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
| | - Rossella Cianci
- Department of Translational Medicine and Surgery, Catholic University of Rome, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
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6
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He JY, Kim YJ, Mennillo E, Rusu I, Bain J, Rao AA, Andersen C, Law K, Yang H, Tsui J, Shen A, Davidson B, Kushnoor D, Shi Y, Fan F, Cheung A, Zhang L, Fong L, Combes AJ, Pisco AO, Kattah MG, Oh DY. Dysregulation of CD4 + and CD8 + resident memory T, myeloid, and stromal cells in steroid-experienced, checkpoint inhibitor colitis. J Immunother Cancer 2024; 12:e008628. [PMID: 38642938 PMCID: PMC11033653 DOI: 10.1136/jitc-2023-008628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND Colitis caused by checkpoint inhibitors (CPI) is frequent and is treated with empiric steroids, but CPI colitis mechanisms in steroid-experienced or refractory disease are unclear. METHODS Using colon biopsies and blood from predominantly steroid-experienced CPI colitis patients, we performed multiplexed single-cell transcriptomics and proteomics to nominate contributing populations. RESULTS CPI colitis biopsies showed enrichment of CD4+resident memory (RM) T cells in addition to CD8+ RM and cytotoxic CD8+ T cells. Matching T cell receptor (TCR) clonotypes suggested that both RMs are progenitors that yield cytotoxic effectors. Activated, CD38+ HLA-DR+ CD4+ RM and cytotoxic CD8+ T cells were enriched in steroid-experienced and a validation data set of steroid-naïve CPI colitis, underscoring their pathogenic potential across steroid exposure. Distinct from ulcerative colitis, CPI colitis exhibited perturbed stromal metabolism (NAD+, tryptophan) impacting epithelial survival and inflammation. Endothelial cells in CPI colitis after anti-TNF and anti-cytotoxic T-lymphocyte-associated antigen 4 (anti-CTLA-4) upregulated the integrin α4β7 ligand molecular vascular addressin cell adhesion molecule 1 (MAdCAM-1), which may preferentially respond to vedolizumab (anti-α4β7). CONCLUSIONS These findings nominate CD4+ RM and MAdCAM-1+ endothelial cells for targeting in specific subsets of CPI colitis patients.
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Affiliation(s)
- Jun Yan He
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Yang-Joon Kim
- Chan Zuckerberg Biohub, San Francisco, California, USA
| | - Elvira Mennillo
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Iulia Rusu
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Jared Bain
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Arjun A Rao
- CoLabs, University of California, San Francisco, San Francisco, California, USA
| | | | - Karen Law
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Hai Yang
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Jessica Tsui
- CoLabs, University of California, San Francisco, San Francisco, California, USA
| | - Alan Shen
- CoLabs, University of California, San Francisco, San Francisco, California, USA
| | - Brittany Davidson
- CoLabs, University of California, San Francisco, San Francisco, California, USA
| | - Divyashree Kushnoor
- CoLabs, University of California, San Francisco, San Francisco, California, USA
| | - Yimin Shi
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Frances Fan
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Alexander Cheung
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Li Zhang
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Lawrence Fong
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Alexis J Combes
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
- CoLabs, University of California, San Francisco, San Francisco, California, USA
- Department of Pathology, University of California, San Francisco, San Francisco, California, USA
- ImmunoX Initiative, University of California, San Francisco, San Francisco, California, USA
| | | | - Michael G Kattah
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - David Y Oh
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
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Zou X, Ye S, Tan Y. Potential disease biomarkers for diabetic retinopathy identified through Mendelian randomization analysis. Front Endocrinol (Lausanne) 2024; 14:1339374. [PMID: 38274229 PMCID: PMC10808752 DOI: 10.3389/fendo.2023.1339374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
Background Diabetic retinopathy (DR), a leading cause of vision loss, has limited options for effective prevention and treatment. This study aims to utilize genomics and proteomics data to identify potential drug targets for DR. Methods We utilized plasma protein quantitative trait loci data from the Atherosclerosis Risk in Communities Study and the Icelandic Decoding Genetics Study for discovery and replication, respectively. Genetic associations with DR, including its subtypes, were derived from the FinnGen study. Mendelian Randomization (MR) analysis estimated associations between protein levels and DR risk, complemented by colocalization analysis to examine shared causal variants. Results Our MR analysis identified significant associations of specific plasma proteins with DR and proliferative DR (PDR). Elevated genetically predicted levels of WARS (OR = 1.16; 95% CI = 0.095-0.208, FDR = 1.31×10-4) and SIRPG (OR = 1.15; 95% CI = 0.071-0.201, FDR = 1.46×10-2) were associated with higher DR risk, while increased levels of ALDOC (OR = 1.56; 95% CI = 0.246-0.637, FDR = 5.48×10-3) and SIRPG (OR = 1.15; 95% CI = 0.068-0.208, FDR = 4.73×10-2) were associated with higher PDR risk. These findings were corroborated by strong colocalization evidence. Conclusions Our study highlights WARS, SIRPG, and ALDOC as significant proteins associated with DR and PDR, providing a basis for further exploration in drug development. Additional studies are needed to validate these proteins as disease biomarkers across diverse populations.
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Affiliation(s)
- Xuyan Zou
- Changsha Aier Eye Hospital, Aier Eye Hospital Group, Changsha, China
| | - Suna Ye
- Senzhen Aier Eye Hospital, Jinan University, Shenzhen, China
| | - Yao Tan
- Department of Ophthalmology, The Third Xiangya Hospital, Central South University, Changsha, China
- Postdoctoral Station of Clinical Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
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8
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Sun S, Fan Z, Liu X, Wang L, Ge Z. Microglia TREM1-mediated neuroinflammation contributes to central sensitization via the NF-κB pathway in a chronic migraine model. J Headache Pain 2024; 25:3. [PMID: 38177990 PMCID: PMC10768449 DOI: 10.1186/s10194-023-01707-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/20/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Neuroinflammation, mediated by the activation of microglia, contributes to central sensitization, which is associated with the development of chronic migraine (CM). TREM1 receptors amplify the inflammatory response. However, their relationship to CM is unclear. Thus, this study endeavoured to elucidate the exact role of TREM1 in CM. METHODS Nitroglycerin (NTG) was repeatedly administered intraperitoneally to establish the CM model. Mechanical and thermal sensitivities were assessed using von Frey filaments and hot plate assays. Using Western blotting, TREM1, NF-κB pathway, NLRP3 inflammasome components, and proinflammatory cytokines were all detected. Immunofluorescence was used to examine the cellular distribution of TREM1 and NLRP3, the number of microglia, immunoreactivity, and morphological changes. We examined the effects of TREM1 antagonists (LR12) and NF-κB inhibitors (PDTC) on pain behaviour, as well as the production of c-fos and CGRP. Additionally, we investigated whether LR12 and PDTC affect the activation of microglia and the NLRP3 inflammasome. We synthesized siRNA and TREM1-overexpressing plasmids to transfect BV2 cells treated with LPS and normal BV2 cells and treated TREM1-overexpressing BV2 cells with PDTC. The NF-κB pathway, NLRP3 inflammasome components, and proinflammatory cytokines were quantified using Western blotting. RESULTS Following NTG administration, the expression of TREM1 was significantly upregulated and exclusively localized in microglia in the TNC, and was well co-localized with NLRP3. Furthermore, activation of the classical NF-κB pathway was observed. Pre-treatment with LR12 and PDTC effectively attenuated mechanical hypersensitivity, suppressed the expression of c-fos and CGRP, and inhibited NF-κB activity in CM mice. Additionally, inhibition of TREM1 and NF-κB activity mitigated NTG-induced microglia and NLRP3 activation, as well as proinflammatory cytokines production. In vitro, knockdown of TREM1 resulted in attenuated activation of the NF-κB pathway following lipopolysaccharide (LPS) treatment and reduced expression of NLRP3 inflammasome components as well as proinflammatory cytokines. After TREM1 overexpression, the NF-κB pathway was activated, NLRP3 inflammasome components and proinflammatory cytokines were upregulated, and PDTC reversed this phenomenon. CONCLUSIONS Our findings suggest that TREM1 regulates microglia and NLRP3 activation via the NF-κB pathway, thereby contributing to central sensitization and implicating its involvement in chronic migraine pathogenesis.
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Affiliation(s)
- Songtang Sun
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China
| | - Zhenzhen Fan
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China
| | - Xuejiao Liu
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China
| | - Longde Wang
- Expert Workstation of Academician Wang Longde, Lanzhou University Second Hospital, Lanzhou, 730000, China
| | - Zhaoming Ge
- Department of Neurology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, 730000, China.
- Gansu Provincial Neurology Clinical Medical Research Center, Lanzhou University Second Hospital, Lanzhou, 730000, China.
- Expert Workstation of Academician Wang Longde, Lanzhou University Second Hospital, Lanzhou, 730000, China.
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9
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Kim YT, Huh JW, Choi YH, Yoon HK, Nguyen TT, Chun E, Jeong G, Park S, Ahn S, Lee WK, Noh YW, Lee KS, Ahn HS, Lee C, Lee SM, Kim KS, Suh GJ, Jeon K, Kim S, Jin M. Highly secreted tryptophanyl tRNA synthetase 1 as a potential theranostic target for hypercytokinemic severe sepsis. EMBO Mol Med 2024; 16:40-63. [PMID: 38177528 PMCID: PMC10883277 DOI: 10.1038/s44321-023-00004-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 01/06/2024] Open
Abstract
Despite intensive clinical and scientific efforts, the mortality rate of sepsis remains high due to the lack of precise biomarkers for patient stratification and therapeutic guidance. Secreted human tryptophanyl-tRNA synthetase 1 (WARS1), an endogenous ligand for Toll-like receptor (TLR) 2 and TLR4 against infection, activates the genes that signify the hyperinflammatory sepsis phenotype. High plasma WARS1 levels stratified the early death of critically ill patients with sepsis, along with elevated levels of cytokines, chemokines, and lactate, as well as increased numbers of absolute neutrophils and monocytes, and higher Sequential Organ Failure Assessment (SOFA) scores. These symptoms were recapitulated in severely ill septic mice with hypercytokinemia. Further, injection of WARS1 into mildly septic mice worsened morbidity and mortality. We created an anti-human WARS1-neutralizing antibody that suppresses proinflammatory cytokine expression in marmosets with endotoxemia. Administration of this antibody into severe septic mice attenuated cytokine storm, organ failure, and early mortality. With antibiotics, the antibody almost completely prevented fatalities. These data imply that blood-circulating WARS1-guided anti-WARS1 therapy may provide a novel theranostic strategy for life-threatening systemic hyperinflammatory sepsis.
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Affiliation(s)
- Yoon Tae Kim
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
| | - Jin Won Huh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yun Hui Choi
- R&D Center, MirimGENE, Incheon, Republic of Korea
| | | | | | - Eunho Chun
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
| | - Geunyeol Jeong
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea
| | - Sunyoung Park
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Republic of Korea
| | - Sungwoo Ahn
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB, Canada
| | - Won-Kyu Lee
- New Drug Development Center, Osong Medical Innovation Foundation, Cheongju, Republic of Korea
| | - Young-Woock Noh
- New Drug Development Center, Osong Medical Innovation Foundation, Cheongju, Republic of Korea
| | - Kyoung Sun Lee
- Non-Clinical Evaluation Center, Osong Medical Innovation Foundation, Cheongju, Republic of Korea
| | - Hee-Sung Ahn
- Convergence Medicine Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea
| | - Cheolju Lee
- Chemical & Biological Integrative Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Sang Min Lee
- Department of Internal Medicine, Gil Medical Center, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Kyung Su Kim
- Department of Emergency Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Gil Joon Suh
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kyeongman Jeon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sunghoon Kim
- Medicinal Bioconvergence Research Center, Institute for Artificial Intelligence and Biomedical Research, The interdisciplinary graduate program in integrative biotechnology, College of Pharmacy & College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon, Republic of Korea
| | - Mirim Jin
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Republic of Korea.
- R&D Center, MirimGENE, Incheon, Republic of Korea.
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Republic of Korea.
- Department of Microbiology, College of Medicine, Gachon University, Incheon, Republic of Korea.
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10
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Jin M, Fang J, Wang JJ, Shao X, Xu SW, Liu PQ, Ye WC, Liu ZP. Regulation of toll-like receptor (TLR) signaling pathways in atherosclerosis: from mechanisms to targeted therapeutics. Acta Pharmacol Sin 2023; 44:2358-2375. [PMID: 37550526 PMCID: PMC10692204 DOI: 10.1038/s41401-023-01123-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 06/04/2023] [Indexed: 08/09/2023] Open
Abstract
Atherosclerosis, one of the life-threatening cardiovascular diseases (CVDs), has been demonstrated to be a chronic inflammatory disease, and inflammatory and immune processes are involved in the origin and development of the disease. Toll-like receptors (TLRs), a class of pattern recognition receptors that trigger innate immune responses by identifying pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs), regulate numerous acute and chronic inflammatory diseases. Recent studies reveal that TLRs have a vital role in the occurrence and development of atherosclerosis, including the initiation of endothelial dysfunction, interaction of various immune cells, and activation of a number of other inflammatory pathways. We herein summarize some other inflammatory signaling pathways, protein molecules, and cellular responses associated with TLRs, such as NLRP3, Nrf2, PCSK9, autophagy, pyroptosis and necroptosis, which are also involved in the development of AS. Targeting TLRs and their regulated inflammatory events could be a promising new strategy for the treatment of atherosclerotic CVDs. Novel drugs that exert therapeutic effects on AS through TLRs and their related pathways are increasingly being developed. In this article, we comprehensively review the current knowledge of TLR signaling pathways in atherosclerosis and actively seek potential therapeutic strategies using TLRs as a breakthrough point in the prevention and therapy of atherosclerosis.
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Affiliation(s)
- Mei Jin
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 511436, China
| | - Jian Fang
- Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), Guangzhou, 510800, China
| | - Jiao-Jiao Wang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 511436, China
| | - Xin Shao
- Department of Food Science and Engineering, Jinan University, Guangzhou, 511436, China
| | - Suo-Wen Xu
- Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China
| | - Pei-Qing Liu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 511436, China.
- National-Local Joint Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Wen-Cai Ye
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 511436, China.
| | - Zhi-Ping Liu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 511436, China.
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11
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Peixoto PM, Bromfield JJ, Ribeiro ES, Santos JEP, Thatcher WW, Bisinotto RS. Transcriptome changes associated with elongation of bovine conceptuses II: Differentially expressed transcripts in the endometrium on day 17 after insemination. J Dairy Sci 2023; 106:9763-9777. [PMID: 37641338 DOI: 10.3168/jds.2023-23399] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/15/2023] [Indexed: 08/31/2023]
Abstract
The objective was to characterize endometrial transcriptome on d 17 of gestation in dairy cows according to conceptus length. Nonlactating Holstein cows (n = 48) were slaughtered 17 d after AI and the uterine horn ipsilateral to the corpus luteum (CL) was flushed with saline solution. Recovered conceptuses were classified as small (1.2-6.9 cm; n = 9), medium (10.5-16.0 cm; n = 9), or large (18.0-26.4 cm; n = 10). Samples of intercaruncular endometrium dissected from the caudal, intermediate, and cranial portions of the uterine horn ipsilateral to the pregnancy were pooled for analyses. Total mRNA was extracted from endometrial tissue and subjected to transcriptome analyses using the Affymetrix Gene Chip Bovine array. Data were normalized using the GCRMA method and analyzed by robust regression using the Linear Models for Microarray library within Bioconductor in R. Transcripts with P ≤ 0.05 after adjustment for false discovery rate and fold change ≥1.5 were considered differentially expressed. Functional analyses were conducted using the Ingenuity Pathway Analysis platform. Comparisons between endometria of cows carrying large versus small (LvsS), large versus medium (LvsM), and medium versus small (MvsS) conceptuses yielded a total of 235, 21, and 94 differentially expressed transcripts, respectively. Top canonical pathways included the antigen presentation pathway and Th1/Th2 activation pathways, both for LvsS and MvsS. Interferon-α and -γ were identified as activated upstream regulators, primarily based on differently expressed transcripts such as IDO1, ISG20, WARS, LGALS9, IFI44, and PSMB9 (LvsS and MvsS). For LvsS, regulator analyses revealed predicted activation of FOXO1, IFN, NFACTC2, IL-12, IL-6, and IL-18, whereas it depicted inhibition of IL10RA and ZBTB1. Changes in these regulators were associated with a downstream activation of leukocytes, as well as quantity and expansion of T lymphocytes. Canonical pathways associated with the comparison LvsM included cell cycle G2/M DNA damage checkpoint regulation, cell cycle control of chromosomal replication. Moreover, tretinoin was predicted, as activated in upstream analysis for the same comparison. In conclusion, most of the differently expressed transcripts in the endometrium on d 17 of gestation were identified between cows carrying small conceptuses compared with counterparts carrying medium and large conceptuses and were involved with pathways associated with modulation of the immune response.
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Affiliation(s)
- P M Peixoto
- Department of Large Animal Clinical Sciences, D. H. Barron Reproductive, and Perinatal Biology Research Program, University of Florida, Gainesville, FL 32610
| | - J J Bromfield
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, FL 32608
| | - E S Ribeiro
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - J E P Santos
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, FL 32608
| | - W W Thatcher
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville, FL 32608
| | - R S Bisinotto
- Department of Large Animal Clinical Sciences, D. H. Barron Reproductive, and Perinatal Biology Research Program, University of Florida, Gainesville, FL 32610.
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12
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Taylor AH, Konje JC, Ayakannu T. Identification of Potentially Novel Molecular Targets of Endometrial Cancer Using a Non-Biased Proteomic Approach. Cancers (Basel) 2023; 15:4665. [PMID: 37760635 PMCID: PMC10527058 DOI: 10.3390/cancers15184665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
The present study was aimed at identifying novel proteins in endometrial cancer (EC), employing proteomic analysis of tissues obtained after surgery. A differential MS-based proteomic analysis was conducted from whole tissues dissected from biopsies from post-menopausal women, histologically confirmed as endometrial cancer (two endometrioid and two serous; n = 4) or normal atrophic endometrium (n = 4), providing 888 differentially expressed proteins with 246 of these previously documented elsewhere as expressed in EC and 372 proteins not previously demonstrated to be expressed in EC but associated with other types of cancer. Additionally, 33 proteins not recorded previously in PubMed as being expressed in any forms of cancer were also identified, with only 26 of these proteins having a publication associated with their expression patterns or putative functions. The putative functions of the 26 proteins (GRN, APP, HEXA, CST3, CAD, QARS, SIAE, WARS, MYH8, CLTB, GOLIM4, SCARB2, BOD1L1, C14orf142, C9orf142, CCDC13, CNPY4, FAM169A, HN1L, PIGT, PLCL1, PMFBP1, SARS2, SCPEP1, SLC25A24 and ZC3H4) in other tissues point towards and provide a basis for further investigation of these previously unrecognised novel EC proteins. The developmental biology, disease, extracellular matrix, homeostatic, immune, metabolic (both RNA and protein), programmed cell death, signal transduction, molecular transport, transcriptional networks and as yet uncharacterised pathways indicate that these proteins are potentially involved in endometrial carcinogenesis and thus may be important in EC diagnosis, prognostication and treatment and thus are worthy of further investigation.
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Affiliation(s)
- Anthony H. Taylor
- Reproductive Sciences Section, Department of Cancer Studies & Molecular Medicine, University of Leicester, Leicester LE1 7RH, UK; (A.H.T.); (J.C.K.)
- Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 7RH, UK
| | - Justin C. Konje
- Reproductive Sciences Section, Department of Cancer Studies & Molecular Medicine, University of Leicester, Leicester LE1 7RH, UK; (A.H.T.); (J.C.K.)
- Department of Health Sciences, University of Leicester, Leicester LE1 7RH, UK
- Weill Cornell Medicine-Qatar, Al Rayyan, Doha P.O. Box 24144, Qatar
| | - Thangesweran Ayakannu
- Reproductive Sciences Section, Department of Cancer Studies & Molecular Medicine, University of Leicester, Leicester LE1 7RH, UK; (A.H.T.); (J.C.K.)
- Department of Obstetrics & Gynaecology, Taylor’s University, Subang Jaya 47500, Selangor, Malaysia
- Sunway Medical Centre, Bandar Sunway, Subang Jaya 47500, Selangor, Malaysia
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13
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Ner-Gaon H, Peleg R, Gazit R, Reiner-Benaim A, Shay T. Mapping the splicing landscape of the human immune system. Front Immunol 2023; 14:1116392. [PMID: 37711610 PMCID: PMC10499523 DOI: 10.3389/fimmu.2023.1116392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 08/14/2023] [Indexed: 09/16/2023] Open
Abstract
Most human genes code for more than one transcript. Different ratios of transcripts of the same gene can be found in different cell types or states, indicating differential use of transcription start sites or differential splicing. Such differential transcript use (DTUs) events provide an additional layer of regulation and protein diversity. With the exceptions of PTPRC and CIITA, there are very few reported cases of DTU events in the immune system. To rigorously map DTUs between different human immune cell types, we leveraged four publicly available RNA sequencing datasets. We identified 282 DTU events between five human healthy immune cell types that appear in at least two datasets. The patterns of the DTU events were mostly cell-type-specific or lineage-specific, in the context of the five cell types tested. DTUs correlated with the expression pattern of potential regulators, namely, splicing factors and transcription factors. Of the several immune related conditions studied, only sepsis affected the splicing of more than a few genes and only in innate immune cells. Taken together, we map the DTUs landscape in human peripheral blood immune cell types, and present hundreds of genes whose transcript use changes between cell types or upon activation.
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Affiliation(s)
- Hadas Ner-Gaon
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ronnie Peleg
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Roi Gazit
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Anat Reiner-Benaim
- Department of Epidemiology, Biostatistics and Community Health Sciences, School of Public Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Tal Shay
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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14
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Völkel S, Tarawneh TS, Sacher L, Bhagwat AM, Karim I, Mack HID, Wiesmann T, Beutel B, Hoyer J, Keller C, Renz H, Burchert A, Neubauer A, Graumann J, Skevaki C, Mack EKM. Serum proteomics hint at an early T-cell response and modulation of SARS-CoV-2-related pathogenic pathways in COVID-19-ARDS treated with Ruxolitinib. Front Med (Lausanne) 2023; 10:1176427. [PMID: 37293294 PMCID: PMC10244732 DOI: 10.3389/fmed.2023.1176427] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/24/2023] [Indexed: 06/10/2023] Open
Abstract
Background Acute respiratory distress syndrome (ARDS) in corona virus disease 19 (COVID-19) is triggered by hyperinflammation, thus providing a rationale for immunosuppressive treatments. The Janus kinase inhibitor Ruxolitinib (Ruxo) has shown efficacy in severe and critical COVID-19. In this study, we hypothesized that Ruxo's mode of action in this condition is reflected by changes in the peripheral blood proteome. Methods This study included 11 COVID-19 patients, who were treated at our center's Intensive Care Unit (ICU). All patients received standard-of-care treatment and n = 8 patients with ARDS received Ruxo in addition. Blood samples were collected before (day 0) and on days 1, 6, and 10 of Ruxo treatment or, respectively, ICU admission. Serum proteomes were analyzed by mass spectrometry (MS) and cytometric bead array. Results Linear modeling of MS data yielded 27 significantly differentially regulated proteins on day 1, 69 on day 6 and 72 on day 10. Only five factors (IGLV10-54, PSMB1, PGLYRP1, APOA5, WARS1) were regulated both concordantly and significantly over time. Overrepresentation analysis revealed biological processes involving T-cells only on day 1, while a humoral immune response and complement activation were detected at day 6 and day 10. Pathway enrichment analysis identified the NRF2-pathway early under Ruxo treatment and Network map of SARS-CoV-2 signaling and Statin inhibition of cholesterol production at later time points. Conclusion Our results indicate that the mechanism of action of Ruxo in COVID-19-ARDS can be related to both known effects of this drug as a modulator of T-cells and the SARS-CoV-2-infection.
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Affiliation(s)
- Sara Völkel
- Institute of Laboratory Medicine, Philipps-University Marburg, Marburg, Germany
| | - Thomas S. Tarawneh
- Department of Hematology, Oncology and Immunology, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
| | - Laura Sacher
- Institute of Laboratory Medicine, Philipps-University Marburg, Marburg, Germany
| | - Aditya M. Bhagwat
- Institute of Translational Proteomics, Philipps-University Marburg, Marburg, Germany
| | - Ihab Karim
- Department of Hematology, Oncology and Immunology, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
| | - Hildegard I. D. Mack
- Institute for Biomedical Aging Research, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria
| | - Thomas Wiesmann
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, Diakonie-Klinikum Schwäbisch Hall, Schwäbisch Hall, Germany
| | - Björn Beutel
- Department of Pulmonary and Critical Care Medicine, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
- German Center for Lung Research (DZL), Member of the Universities of Gießen and Marburg Lung Center, Gießen, Germany
| | - Joachim Hoyer
- Department of Nephrology, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
| | - Christian Keller
- Institute of Virology, Philipps-University Marburg, Marburg, Germany
| | - Harald Renz
- Institute of Laboratory Medicine, Philipps-University Marburg, Marburg, Germany
- German Center for Lung Research (DZL), Member of the Universities of Gießen and Marburg Lung Center, Gießen, Germany
| | - Andreas Burchert
- Department of Hematology, Oncology and Immunology, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
| | - Andreas Neubauer
- Department of Hematology, Oncology and Immunology, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
| | - Johannes Graumann
- Institute of Translational Proteomics, Philipps-University Marburg, Marburg, Germany
- Biomolecular Mass Spectrometry, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Chrysanthi Skevaki
- Institute of Laboratory Medicine, Philipps-University Marburg, Marburg, Germany
- German Center for Lung Research (DZL), Member of the Universities of Gießen and Marburg Lung Center, Gießen, Germany
| | - Elisabeth K. M. Mack
- Department of Hematology, Oncology and Immunology, University Hospital Gießen and Marburg, Philipps-University Marburg, Marburg, Germany
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15
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Liu P, Liu X, Zhang L, Yan G, Zhang H, Xu D, Wu Y, Zhang G, Wang P, Zeng Q, Wang X. ALA-PDT augments intense inflammation in the treatment of acne vulgaris by COX2/TREM1 mediated M1 macrophage polarization. Biochem Pharmacol 2023; 208:115403. [PMID: 36592708 DOI: 10.1016/j.bcp.2022.115403] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022]
Abstract
Severe acne vulgaris is a common chronic inflammatory skin disease worldwide. 5-Aminolaevulinic acid photodynamic therapy (ALA-PDT) is effective and safe for severe acne. However, the mechanism is not fully understood. Intense acute inflammatory response at 24 h after ALA-PDT is reported positively correlated to the effectiveness. Inflammation regulation influence the progression or outcome of diseases. ALA-PDT may exert its therapeutic effect by augmenting intense inflammation and break the chronic inflammation. This study was set out to explore the mechanism of ALA-PDT augmenting intense acute inflammation in the treatment of acne. As a result, transcriptome microarrays analysis of severe acne patients showed that ALA-PDT significantly up-regulated expression of various inflammation-related genes, especially TREM1 and PTGS2, which were further confirmed by a C.acnes induced acne-like mouse ear model. The subsequent experiments demonstrated that ALA-PDT could trigger pro-inflammatory M1 polarization of macrophages in vitro and in vivo. Additionally, the crosstalk between keratinocytes and macrophages studied by a transwell co-culture system indicated that PGE2 secreted by ALA-PDT treated HaCaT cells could promote THP-1 macrophages M1 polarization by COX2/PGE2/TLR4/TREM1 axis to augment inflammation. Our study provides a novel insight that ALA-PDT could amplify inflammation by COX2/TREM1 mediated macrophages M1 polarization for the treatment of acne. It is hoped that this research will decipher the mechanism of ALA-PDT for the treatment of acne and provide a theoretical basis for optimizing the clinical ALA-PDT management.
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Affiliation(s)
- Pei Liu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Xiaojing Liu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Linglin Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Guorong Yan
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Haiyan Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Detian Xu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Yun Wu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Guolong Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Peiru Wang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Qingyu Zeng
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
| | - Xiuli Wang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
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16
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Nguyen TTT, Choi YH, Lee WK, Ji Y, Chun E, Kim YH, Lee JE, Jung HS, Suh JH, Kim S, Jin M. Tryptophan-dependent and -independent secretions of tryptophanyl- tRNA synthetase mediate innate inflammatory responses. Cell Rep 2023; 42:111905. [PMID: 36640342 DOI: 10.1016/j.celrep.2022.111905] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 09/29/2022] [Accepted: 12/09/2022] [Indexed: 12/31/2022] Open
Abstract
While cytoplasmic tryptophanyl-tRNA synthetase (WARS1) ligates tryptophan (Trp) to its cognate tRNAs for protein synthesis, it also plays a role as an innate immune activator in extracellular space. However, its secretion mechanism remains elusive. Here, we report that in response to stimuli, WARS1 can be secreted via two distinct pathways: via Trp-dependent secretion of naked protein and via Trp-independent plasma-membrane-derived vesicles (PMVs). In the direct pathway, Trp binding to WARS1 induces a "closed" conformation, generating a hydrophobic surface and basic pocket. The Trp-bound WARS1 then binds stable phosphatidylinositol (4,5)-biphosphate and inner plasma membrane leaflet, passing across the membrane. In the PMV-mediated secretion, WARS1 recruits calpain 2, which is activated by calcium. WARS1 released from PMVs induces inflammatory responses in vivo. These results provide insights into the secretion mechanisms of WARS1 and improve our understanding of how WARS1 is involved in the control of local and systemic inflammation upon infection.
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Affiliation(s)
- Tram Thuy Thuy Nguyen
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Korea
| | - Yun Hui Choi
- Department of Microbiology, College of Medicine, Gachon University, Incheon 21999, Korea; Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
| | - Won-Kyu Lee
- New Drug Development Center, Osong Medical Innovation Foundation, Cheongju 28160, Korea
| | - Yeounjung Ji
- Department of Microbiology, College of Medicine, Gachon University, Incheon 21999, Korea; Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea
| | - Eunho Chun
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Korea
| | - Yi Hyo Kim
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Korea
| | - Joo-Eun Lee
- Department of Biochemistry, Kangwon National University, Chuncheon 24341, Korea
| | - Hyun Suk Jung
- Department of Biochemistry, Kangwon National University, Chuncheon 24341, Korea
| | - Ji Hun Suh
- Medicinal Bioconvergence Research Center, Institute for Artificial Intelligence and Biomedical Research, College of Pharmacy & College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea
| | - Sunghoon Kim
- Medicinal Bioconvergence Research Center, Institute for Artificial Intelligence and Biomedical Research, College of Pharmacy & College of Medicine, Gangnam Severance Hospital, Yonsei University, Incheon 21983, Korea
| | - Mirim Jin
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Korea; Department of Microbiology, College of Medicine, Gachon University, Incheon 21999, Korea; Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Korea.
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17
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Mao Y, Yu J, Da J, Yu F, Zha Y. Acteoside alleviates UUO-induced inflammation and fibrosis by regulating the HMGN1/TLR4/TREM1 signaling pathway. PeerJ 2023; 11:e14765. [PMID: 36691481 PMCID: PMC9864189 DOI: 10.7717/peerj.14765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/27/2022] [Indexed: 01/20/2023] Open
Abstract
PURPOSE Acteoside (Act), a phenylethanoid compound that was first isolated from mullein, has been widely used for the investigation of anti-inflammatory and anti-fibrotic effect. However, the mechanism of Act against unilateral ureteral obstruction (UUO)-mediated renal injury is largely unknown. Therefore, this study aimed to explore the effects of Act on UUO rats and possible mechanisms. METHODS A total of 20 Sprague-Dawley (SD) rats were divided randomly into three groups (n ≥ 6): (i) sham-operated group (Sham); (ii) UUO group (UUO+Saline); and (iii) UUO + Act 40 mg/kg/day, (UUO+Act); Continuous gavage administration for 2 weeks postoperatively, while the rats in Sham and UUO+saline groups were given equal amounts of saline. All rats were sacrificed after 14 days, the urine and blood samples were collected for biochemical analysis, the renal tissues were collected for pathological staining and immunohistochemistry. Correlations between individual proteins were analyzed by Pearson correlation analysis. RESULTS The results of renal function indexes and histopathological staining showed that Act could improve renal function by reducing serum creatinine, blood urea nitrogen and urine protein at the same time, Act could alleviate renal inflammation and fibrosis. In addition, the results of immunohistochemistry showed that Act could reduce the expression of inflammation and kidney injury-related proteins F4/80, Mcp-1, KIM-1 proteins, as well as the expression of fibrosis-related protein α-SMA and β-catenin. More importantly, Act can also reduce the expression of HMGN1, TLR4 and TREM-1 proteins. CONCLUSION These data demonstrate that Act can ameliorate UUO-induced renal inflammation and fibrosis in rats probably through triggering HMGN1/TLR4/TREM-1 pathway.
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Affiliation(s)
- Yan Mao
- School of Medicine, Guizhou University, Guiyang, Guizhou, China
- Department of Nephrology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
| | - Jiali Yu
- School of Medicine, Guizhou University, Guiyang, Guizhou, China
- Department of Nephrology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
| | - Jingjing Da
- School of Medicine, Guizhou University, Guiyang, Guizhou, China
- Department of Nephrology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
| | - Fuxun Yu
- School of Medicine, Guizhou University, Guiyang, Guizhou, China
- Department of Nephrology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
- NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
| | - Yan Zha
- School of Medicine, Guizhou University, Guiyang, Guizhou, China
- Department of Nephrology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
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Molecular and spatial heterogeneity of microglia in Rasmussen encephalitis. Acta Neuropathol Commun 2022; 10:168. [PMID: 36411471 PMCID: PMC9677917 DOI: 10.1186/s40478-022-01472-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/22/2022] Open
Abstract
Rasmussen encephalitis (RE) is a rare childhood neurological disease characterized by progressive unilateral loss of function, hemispheric atrophy and drug-resistant epilepsy. Affected brain tissue shows signs of infiltrating cytotoxic T-cells, microglial activation, and neuronal death, implicating an inflammatory disease process. Recent studies have identified molecular correlates of inflammation in RE, but cell-type-specific mechanisms remain unclear. We used single-nucleus RNA-sequencing (snRNA-seq) to assess gene expression across multiple cell types in brain tissue resected from two children with RE. We found transcriptionally distinct microglial populations enriched in RE compared to two age-matched individuals with unaffected brain tissue and two individuals with Type I focal cortical dysplasia (FCD). Specifically, microglia in RE tissues demonstrated increased expression of genes associated with cytokine signaling, interferon-mediated pathways, and T-cell activation. We extended these findings using spatial proteomic analysis of tissue from four surgical resections to examine expression profiles of microglia within their pathological context. Microglia that were spatially aggregated into nodules had increased expression of dynamic immune regulatory markers (PD-L1, CD14, CD11c), T-cell activation markers (CD40, CD80) and were physically located near distinct CD4+ and CD8+ lymphocyte populations. These findings help elucidate the complex immune microenvironment of RE.
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Oviductal Extracellular Vesicles Enhance Porcine In Vitro Embryo Development by Modulating the Embryonic Transcriptome. Biomolecules 2022; 12:biom12091300. [PMID: 36139139 PMCID: PMC9496104 DOI: 10.3390/biom12091300] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/29/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
Oviductal extracellular vesicles (oEVs) have been identified as important components of the oviductal fluid (OF) and have been pointed to as key modulators of gamete/embryo-maternal interactions. Here, we determined the functional impact of oEVs on embryo development and the embryonic transcriptome in porcine. Experiment 1 examined the effect of oEVs and OF on embryo development. In vitro-produced embryos were cultured with oEVs or OF for 2 or 7 days using an in vitro sequential system or without supplementation (control). Experiment 2 analyzed transcriptomic alterations of EV-treated embryos versus control and the oEVs RNA cargo by RNA-sequencing. Two days of EV treatment enhanced embryo development over time when compared to other treatments. Different RNA expression profiles between embryos treated with EVs for two or seven days and untreated controls were obtained, with 54 and 59 differentially expressed (DE) genes and six and seven DE miRNAs, respectively. In oEV RNA cargo, 12,998 RNAs and 163 miRNAs were identified. Integrative analyses pointed to specific oEV components that might act as modulators of the embryonic transcriptome, such as S100A11, ANXA2 or miR-21-5p. Overall, the findings suggested that oEVs could be a potential strategy to improve porcine IVP outcomes, particularly by using two days of EV treatment.
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Sasaki M, Shimoyama Y, Kodama Y, Ishikawa T. Tryptophanyl tRNA Synthetase from Human Macrophages Infected by Porphyromonas gingivalis Induces a Proinflammatory Response Associated with Atherosclerosis. Pathogens 2021; 10:1648. [PMID: 34959604 PMCID: PMC8708850 DOI: 10.3390/pathogens10121648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/15/2021] [Accepted: 12/19/2021] [Indexed: 11/16/2022] Open
Abstract
Porphyromonas gingivalis is the most common microorganism associated with adult periodontal disease, causing inflammation around the subgingival lesion. In this study, we investigated tryptophanyl tRNA synthase (WRS) production by THP-1 cells infected with P. gingivalis. Cytokine production, leukocyte adhesion molecules, and low-density lipoprotein receptor (LDLR) expressions in cultured cells were examined. WRS was detected in THP-1 cell culture supernatants stimulated with P. gingivalis from 1 to 24 h, and apparent production was observed after 4 h. No change in WRS mRNA expression was observed from 1 to 6 h in THP-1 cells, whereas its expression was significantly increased 12 h after stimulation with P. gingivalis. Lactate dehydrogenase (LDH) activity was observed from 4 to 24 h. The TNF-α, IL-6, IL-8, and CXCL2 levels of THP-1 cells were upregulated after treatment with recombinant WRS (rWRS) and were significantly reduced when THP-1 cells were treated with C29. The MCP-1, ICAM-1, and VCAM-1 levels in human umbilical vein endothelial cells were upregulated following treatment with rWRS, and TAK242 suppressed these effects. Additionally, unmodified LDLR, macrophage scavenger receptor A, and lectin-like oxidized LDLRs were upregulated in THP-1 cells treated with rWRS. These results suggest that WRS from macrophages infected with P. gingivalis is associated with atherosclerosis.
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Affiliation(s)
- Minoru Sasaki
- Department of Microbiology, Division of Molecular Microbiology, Iwate Medical University, Morioka 028-3694, Japan; (Y.S.); (Y.K.); (T.I.)
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Soluble triggering receptor expressed on myeloid cells-1 as a serum biomarker of early neurologic deterioration and prognosis in acute supratentorial intracerebral hemorrhage. Clin Chim Acta 2021; 523:290-296. [PMID: 34655609 DOI: 10.1016/j.cca.2021.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Triggering receptor expressed on myeloid cells-1 (TREM-1) participates in neuroinflammation. We intended to ascertain whether serum soluble TREM-1 (sTREM-1) could be utilized as a biomarker of inflammation, severity, early neurologic deterioration (END) and outcome after primary intracerebral hemorrhage (ICH). METHODS Serum sTREM-1 levels were gauged in 104 ICH patients and 104 healthy controls. END was diagnosed when the National Institutes of Health Stroke Scale (NIHSS) score increased ≥ 4 points or death between admission and 24 h after admission. Patients with a modified Rankin scale score of > 2 at 3 months were considered to have poor outcome. RESULTS As compared to controls, patients exhibited significantly elevated serum sTREM-1 levels (median: 309.0 vs 67.9 pg/ml). Serum sTREM-1 concentrations were intimately correlated with NIHSS score (r = 0.574), hematoma volume (r = 0.554), blood leukocyte count (r = 0.529) and serum C-reactive protein concentrations (r = 0.509). Serum sTREM-1 concentrations > 309.0 pg/ml independently predicted END and poor outcome with odds ratio values of 4.054 and 4.721 respectively. Serum sTREM-1 concentrations distinguished END and poor outcome with areas under receiver operating characteristic curve of 0.789 and 0.813 respectively. CONCLUSION Serum sTREM-1 may represent a promising inflammatory biomarker for assessment of severity and prediction of END and poor outcome after ICH.
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