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Ziemann M, Abeysooriya M, Bora A, Lamon S, Kasu MS, Norris MW, Wong YT, Craig JM. Direction-aware functional class scoring enrichment analysis of infinium DNA methylation data. Epigenetics 2024; 19:2375022. [PMID: 38967555 PMCID: PMC11229754 DOI: 10.1080/15592294.2024.2375022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 06/26/2024] [Indexed: 07/06/2024] Open
Abstract
Infinium Methylation BeadChip arrays remain one of the most popular platforms for epigenome-wide association studies, but tools for downstream pathway analysis have their limitations. Functional class scoring (FCS) is a group of pathway enrichment techniques that involve the ranking of genes and evaluation of their collective regulation in biological systems, but the implementations described for Infinium methylation array data do not retain direction information, which is important for mechanistic understanding of genomic regulation. Here, we evaluate several candidate FCS methods that retain directional information. According to simulation results, the best-performing method involves the mean aggregation of probe limma t-statistics by gene followed by a rank-ANOVA enrichment test using the mitch package. This method, which we call 'LAM,' outperformed an existing over-representation analysis method in simulations, and showed higher sensitivity and robustness in an analysis of real lung tumour-normal paired datasets. Using matched RNA-seq data, we examine the relationship of methylation differences at promoters and gene bodies with RNA expression at the level of pathways in lung cancer. To demonstrate the utility of our approach, we apply it to three other contexts where public data were available. First, we examine the differential pathway methylation associated with chronological age. Second, we investigate pathway methylation differences in infants conceived with in vitro fertilization. Lastly, we analyse differential pathway methylation in 19 disease states, identifying hundreds of novel associations. These results show LAM is a powerful method for the detection of differential pathway methylation complementing existing methods. A reproducible vignette is provided to illustrate how to implement this method.
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Affiliation(s)
- Mark Ziemann
- Bioinformatics Working Group, Burnet Institute, Melbourne, Australia
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia
| | - Mandhri Abeysooriya
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
| | - Anusuiya Bora
- Bioinformatics Working Group, Burnet Institute, Melbourne, Australia
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia
| | - Séverine Lamon
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Geelong, Australia
| | - Mary Sravya Kasu
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia
| | - Mitchell W. Norris
- School of Life and Environmental Sciences, Deakin University, Geelong, Australia
| | - Yen Ting Wong
- School of Medicine, Deakin University, Geelong, Australia
- Murdoch Children’s Research Institute, Melbourne, Australia
| | - Jeffrey M. Craig
- School of Medicine, Deakin University, Geelong, Australia
- Murdoch Children’s Research Institute, Melbourne, Australia
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2
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Nomura S, Shimojima Y, Kishida D, Ichikawa T, Matsushima A, Sekijima Y. Low serum complements in idiopathic inflammatory myositis: clinical features and impact on the prognosis. Immunol Med 2024:1-9. [PMID: 38932558 DOI: 10.1080/25785826.2024.2370083] [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: 04/24/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024] Open
Abstract
This study investigated the clinical features and prognostic relevance of decreased serum complement levels in patients with idiopathic inflammatory myositis (IIM). The clinical information of IIM patients with less than normal serum complement levels (L-Com) and that of those with normal serum complement levels (N-Com) was compared. In patients with interstitial lung disease (ILD), regression analyses were used to investigate the implication of L-Com in their PaO2/FiO2 (P/F) ratio. Prognostic outcomes of ILD were evaluated using the log-rank test. Of 94 IIM patients, 26 with L-Com (median age, 56.0 years) and 68 with N-Com (56.5 years) were included. The prevalence of women was significantly higher in patients with L-Com (92.3%) than in those with N-Com (67.6%). ILD was observed in 17 (65.4%) patients with L-Com and in 46 (67.6%) with N-Com. Among patients with ILD, the P/F ratio was significantly lower in those with L-Com than in those with N-Com. Serum C3 levels were correlated with decreased P/F ratio. Inferior prognosis of ILD was significantly demonstrated in patients with L-Com, especially in those positive for anti-melanoma differentiation-associated protein 5 antibody. L-Com may be implicated in reduced arterial oxygen levels and a poorer prognosis in patients with IIM-related ILD.
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Affiliation(s)
- Shun Nomura
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Yasuhiro Shimojima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Dai Kishida
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Takanori Ichikawa
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Akira Matsushima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Yoshiki Sekijima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
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Barber AJ, Del Genio CL, Swain AB, Pizzi EM, Watson SC, Tapiavala VN, Zanazzi GJ, Gaur AB. Age, sex and Alzheimer's disease: a longitudinal study of 3xTg-AD mice reveals sex-specific disease trajectories and inflammatory responses mirrored in postmortem brains from Alzheimer's patients. Alzheimers Res Ther 2024; 16:134. [PMID: 38909241 PMCID: PMC11193202 DOI: 10.1186/s13195-024-01492-x] [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: 02/05/2024] [Accepted: 06/06/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND Aging and sex are major risk factors for developing late-onset Alzheimer's disease. Compared to men, women experience worse neuropathological burden and cognitive decline despite living longer with the disease. Similarly, male 3xTg-AD mice, developed to model Alzheimer's disease, no longer consistently exhibit standard Alzheimer's neuropathology yet experience higher rates of mortality - providing a unique opportunity to further elucidate this dichotomy. We hypothesized that sex differences in the biological aging process yield distinct pathological and molecular Alzheimer's disease signatures in males and females, which could be harnessed for therapeutic and biomarker development. METHODS We aged male and female, 3xTg-AD and B6129 control mice across their respective lifespans (n = 3-8 mice per sex, strain, and age group) and longitudinally assessed neuropathological hallmarks of Alzheimer's disease, markers of hepatic inflammation, splenic mass and morphology, as well as plasma cytokine levels. We conducted RNA sequencing analysis on bulk brain tissue and examined differentially expressed genes (DEGs) between 3xTg-AD and B6129 samples and across ages in each sex. We also examined DEGs between clinical Alzheimer's and control parahippocampal gyrus brain tissue samples from the Mount Sinai Brain Bank study in each sex. RESULTS 3xTg-AD females significantly outlived 3xTg-AD males and exhibited progressive Alzheimer's neuropathology, while 3xTg-AD males demonstrated progressive hepatic inflammation, splenomegaly, circulating inflammatory proteins, and minimal Alzheimer's neuropathological hallmarks. Instead, 3xTg-AD males experienced an accelerated upregulation of immune-related gene expression in the brain relative to females. Our clinical investigations revealed that individuals with Alzheimer's disease develop similar sex-specific alterations in neuronal and immune function. In diseased males of both species, we observed greater upregulation of complement-related gene expression, and lipopolysaccharide was predicted as the top upstream regulator of DEGs. CONCLUSIONS Our data demonstrate that chronic inflammation and complement activation are associated with increased mortality, indicating that age-related changes in immune response contribute to sex differences in Alzheimer's disease trajectories. We provide evidence that aging and transgene-driven disease progression trigger a widespread inflammatory response in 3xTg-AD males, which mimics the impact of lipopolysaccharide stimulation despite the absence of infection.
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Affiliation(s)
- Alicia J Barber
- Department of Neurology, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Carmen L Del Genio
- Department of Neurology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | | | - Elizabeth M Pizzi
- The Jackson Laboratory, Bar Harbor, ME, USA
- Neuroscience Program, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, USA
| | | | | | - George J Zanazzi
- Department of Pathology, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Arti B Gaur
- Department of Neurology, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA.
- Integrative Neuroscience at Dartmouth, Dartmouth College, Hanover, NH, USA.
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4
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Seo D, Lee CM, Apio C, Heo G, Timsina J, Kohlfeld P, Boada M, Orellana A, Fernandez MV, Ruiz A, Morris JC, Schindler SE, Park T, Cruchaga C, Sung YJ. Sex and aging signatures of proteomics in human cerebrospinal fluid identify distinct clusters linked to neurodegeneration. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.18.24309102. [PMID: 38947020 PMCID: PMC11213043 DOI: 10.1101/2024.06.18.24309102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Sex and age are major risk factors for chronic diseases. Recent studies examining age-related molecular changes in plasma provided insights into age-related disease biology. Cerebrospinal fluid (CSF) proteomics can provide additional insights into brain aging and neurodegeneration. By comprehensively examining 7,006 aptamers targeting 6,139 proteins in CSF obtained from 660 healthy individuals aged from 43 to 91 years old, we subsequently identified significant sex and aging effects on 5,097 aptamers in CSF. Many of these effects on CSF proteins had different magnitude or even opposite direction as those on plasma proteins, indicating distinctive CSF-specific signatures. Network analysis of these CSF proteins revealed not only modules associated with healthy aging but also modules showing sex differences. Through subsequent analyses, several modules were highlighted for their proteins implicated in specific diseases. Module 2 and 6 were enriched for many aging diseases including those in the circulatory systems, immune mechanisms, and neurodegeneration. Together, our findings fill a gap of current aging research and provide mechanistic understanding of proteomic changes in CSF during a healthy lifespan and insights for brain aging and diseases.
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Vacik Díaz R, Munsch G, Iglesias MJ, Pallares Robles A, Ibrahim-Kosta M, Nourse J, Khan E, Castoldi E, Saut N, Boland A, Germain M, Deleuze JF, Odeberg J, Morange PE, Danckwardt S, Tregouët DA, Goumidi L. Plasma levels of complement components C5 and C9 are associated with thrombin generation. J Thromb Haemost 2024:S1538-7836(24)00312-X. [PMID: 38838952 DOI: 10.1016/j.jtha.2024.04.026] [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: 09/11/2023] [Revised: 03/30/2024] [Accepted: 04/24/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND The thrombin generation assay (TGA) evaluates the potential of plasma to generate thrombin over time, providing a global picture of an individual's hemostatic balance. OBJECTIVES This study aimed to identify novel biological determinants of thrombin generation using a multiomics approach. METHODS Associations between TGA parameters and plasma levels of 377 antibodies targeting 236 candidate proteins for cardiovascular risk were tested using multiple linear regression analysis in 770 individuals with venous thrombosis from the Marseille Thrombosis Association (MARTHA) study. Proteins associated with at least 3 TGA parameters were selected for validation in an independent population of 536 healthy individuals (Etablissement Français du Sang Alpes-Méditerranée [EFS-AM]). Proteins with strongest associations in both groups underwent additional genetic analyses and in vitro experiments. RESULTS Eighteen proteins were associated (P < 1.33 × 10⁻4) with at least 3 TGA parameters in MARTHA, among which 13 demonstrated a similar pattern of associations in EFS-AM. Complement proteins C5 and C9 had the strongest associations in both groups. Ex vivo supplementation of platelet-poor plasma with purified C9 protein had a significant dose-dependent effect on TGA parameters. No effect was observed with purified C5. Several single nucleotide polymorphisms associated with C5 and C9 plasma levels were identified, with the strongest association for the C5 missense variant rs17611, which was associated with a decrease in C5 levels, endogenous thrombin potential, and peak in MARTHA. No association of this variant with TGA parameters was observed in EFS-AM. CONCLUSION This study identified complement proteins C5 and C9 as potential determinants of thrombin generation. Further studies are warranted to establish causality and elucidate the underlying mechanisms.
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Affiliation(s)
- Rocío Vacik Díaz
- Cardiovascular and Nutrition Research Center Centre de recherche en CardioVasculaire et Nutrition (C2VN), Aix-Marseille University, Institut national de la santé et de la recherche médicale 1263, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement 1260, Marseille, France; Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg, Mainz, Germany. https://twitter.com/RocioVacik
| | - Gaëlle Munsch
- Institut national de la santé et de la recherche médicale Unité Mixte de Recherche_S 1219, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
| | - Maria Jesus Iglesias
- Science for Life Laboratory, Kungliga Tekniska högskolan-Royal Institute of Technology, Stockholm, Sweden
| | - Alejandro Pallares Robles
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg, Mainz, Germany
| | - Manal Ibrahim-Kosta
- Cardiovascular and Nutrition Research Center Centre de recherche en CardioVasculaire et Nutrition (C2VN), Aix-Marseille University, Institut national de la santé et de la recherche médicale 1263, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement 1260, Marseille, France; Department of Hematology, Centre Hospitalier Universitaire Timone, Marseille, France
| | - Jamie Nourse
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg, Mainz, Germany
| | - Essak Khan
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg, Mainz, Germany
| | - Elisabetta Castoldi
- Department of Biochemistry, Cell Biochemistry of Thrombosis and Haemostasis, Maastricht University, Maastricht, the Netherlands
| | - Noémie Saut
- Department of Hematology, Centre Hospitalier Universitaire Timone, Marseille, France
| | - Anne Boland
- Commissariat à l'énergie atomique et aux énergies alternatives, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Marine Germain
- Institut national de la santé et de la recherche médicale Unité Mixte de Recherche_S 1219, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
| | - Jean-François Deleuze
- Commissariat à l'énergie atomique et aux énergies alternatives, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Jacob Odeberg
- Science for Life Laboratory, Kungliga Tekniska högskolan-Royal Institute of Technology, Stockholm, Sweden
| | - Pierre-Emmanuel Morange
- Cardiovascular and Nutrition Research Center Centre de recherche en CardioVasculaire et Nutrition (C2VN), Aix-Marseille University, Institut national de la santé et de la recherche médicale 1263, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement 1260, Marseille, France; Department of Hematology, Centre Hospitalier Universitaire Timone, Marseille, France
| | - Sven Danckwardt
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg, Mainz, Germany
| | - David-Alexandre Tregouët
- Institut national de la santé et de la recherche médicale Unité Mixte de Recherche_S 1219, Bordeaux Population Health Center, University of Bordeaux, Bordeaux, France
| | - Louisa Goumidi
- Cardiovascular and Nutrition Research Center Centre de recherche en CardioVasculaire et Nutrition (C2VN), Aix-Marseille University, Institut national de la santé et de la recherche médicale 1263, Institut national de recherche pour l'agriculture, l'alimentation et l'environnement 1260, Marseille, France.
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Szachowicz PJ, Wohlford-Lenane C, Heinen CJ, Ghimire S, Xue B, Boly TJ, Verma A, MašinoviĆ L, Bermick JR, Perlman S, Meyerholz DK, Pezzulo AA, Zhang Y, Smith RJ, McCray PB. A predominately pulmonary activation of complement in a mouse model of severe COVID-19. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.31.596892. [PMID: 38895461 PMCID: PMC11185570 DOI: 10.1101/2024.05.31.596892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Evidence from in vitro studies and observational human disease data suggest the complement system plays a significant role in SARS-CoV-2 pathogenesis, although how complement dysregulation develops in patients with severe COVID-19 is unknown. Here, using a mouse-adapted SARS-CoV-2 virus (SARS2-N501YMA30) and a mouse model of severe COVID-19, we identify significant serologic and pulmonary complement activation following infection. We observed C3 activation in airway and alveolar epithelia, and in pulmonary vascular endothelia. Our evidence suggests that while the alternative pathway is the primary route of complement activation, components of both the alternative and classical pathways are produced locally by respiratory epithelial cells following infection, and increased in primary cultures of human airway epithelia in response to cytokine exposure. This locally generated complement response appears to precede and subsequently drive lung injury and inflammation. Results from this mouse model recapitulate findings in humans, which suggest sex-specific variance in complement activation, with predilection for increased C3 activity in males, a finding that may correlate with more severe disease. Our findings indicate that complement activation is a defining feature of severe COVID-19 in mice and lay the foundation for further investigation into the role of complement in COVID-19.
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Affiliation(s)
- Peter J. Szachowicz
- Department of Internal Medicine, The University of Iowa, Division of Pulmonary, Critical Care, and Occupational Medicine, Iowa City, IA, 52242
| | | | - Cobey J. Heinen
- Molecular Otolaryngology and Renal Research Laboratories, Carver College of Medicine, University of Iowa, USA
| | - Shreya Ghimire
- Department of Internal Medicine, The University of Iowa, Division of Pulmonary, Critical Care, and Occupational Medicine, Iowa City, IA, 52242
| | - Biyun Xue
- Stead Family Department of Pediatrics, The University of Iowa, Iowa City, IA, 52242
| | - Timothy J. Boly
- Stead Family Department of Pediatrics, The University of Iowa, Iowa City, IA, 52242
| | - Abhishek Verma
- Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA, 52242
| | - Leila MašinoviĆ
- Department of Internal Medicine, The University of Iowa, Division of Pulmonary, Critical Care, and Occupational Medicine, Iowa City, IA, 52242
| | - Jennifer R. Bermick
- Stead Family Department of Pediatrics, The University of Iowa, Iowa City, IA, 52242
| | - Stanley Perlman
- Stead Family Department of Pediatrics, The University of Iowa, Iowa City, IA, 52242
- Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA, 52242
| | | | - Alejandro A. Pezzulo
- Department of Internal Medicine, The University of Iowa, Division of Pulmonary, Critical Care, and Occupational Medicine, Iowa City, IA, 52242
| | - Yuzhou Zhang
- Molecular Otolaryngology and Renal Research Laboratories, Carver College of Medicine, University of Iowa, USA
| | - Richard J.H. Smith
- Molecular Otolaryngology and Renal Research Laboratories, Carver College of Medicine, University of Iowa, USA
| | - Paul B. McCray
- Stead Family Department of Pediatrics, The University of Iowa, Iowa City, IA, 52242
- Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA, 52242
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7
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Salminen A, Kaarniranta K, Kauppinen A. Tissue fibroblasts are versatile immune regulators: An evaluation of their impact on the aging process. Ageing Res Rev 2024; 97:102296. [PMID: 38588867 DOI: 10.1016/j.arr.2024.102296] [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: 12/18/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
Fibroblasts are abundant stromal cells which not only control the integrity of extracellular matrix (ECM) but also act as immune regulators. It is known that the structural cells within tissues can establish an organ-specific immunity expressing many immune-related genes and closely interact with immune cells. In fact, fibroblasts can modify their immune properties to display both pro-inflammatory and immunosuppressive activities in a context-dependent manner. After acute insults, fibroblasts promote tissue inflammation although they concurrently recruit immunosuppressive cells to enhance the resolution of inflammation. In chronic pathological states, tissue fibroblasts, especially senescent fibroblasts, can display many pro-inflammatory and immunosuppressive properties and stimulate the activities of different immunosuppressive cells. In return, immunosuppressive cells, such as M2 macrophages and myeloid-derived suppressor cells (MDSC), evoke an excessive conversion of fibroblasts into myofibroblasts, thus aggravating the severity of tissue fibrosis. Single-cell transcriptome studies on fibroblasts isolated from aged tissues have confirmed that tissue fibroblasts express many genes coding for cytokines, chemokines, and complement factors, whereas they lose some fibrogenic properties. The versatile immune properties of fibroblasts and their close cooperation with immune cells indicate that tissue fibroblasts have a crucial role in the aging process and age-related diseases.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland.
| | - Kai Kaarniranta
- Department of Ophthalmology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland; Department of Ophthalmology, Kuopio University Hospital, P.O. Box 100, KYS FI-70029, Finland
| | - Anu Kauppinen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland
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8
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Davies LRL, Wang C, Steigler P, Bowman KA, Fischinger S, Hatherill M, Fisher M, Mbandi SK, Rodo M, Ottenhoff THM, Dockrell HM, Sutherland JS, Mayanja-Kizza H, Boom WH, Walzl G, Kaufmann SHE, Nemes E, Scriba TJ, Lauffenburger D, Alter G, Fortune SM. Age and sex influence antibody profiles associated with tuberculosis progression. Nat Microbiol 2024; 9:1513-1525. [PMID: 38658786 PMCID: PMC11153143 DOI: 10.1038/s41564-024-01678-x] [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: 10/12/2023] [Accepted: 03/20/2024] [Indexed: 04/26/2024]
Abstract
Antibody features vary with tuberculosis (TB) disease state. Whether clinical variables, such as age or sex, influence associations between Mycobacterium tuberculosis-specific antibody responses and disease state is not well explored. Here we profiled Mycobacterium tuberculosis-specific antibody responses in 140 TB-exposed South African individuals from the Adolescent Cohort Study. We identified distinct response features in individuals progressing to active TB from non-progressing, matched controls. A multivariate antibody score differentially associated with progression (SeroScore) identified progressors up to 2 years before TB diagnosis, earlier than that achieved with the RISK6 transcriptional signature of progression. We validated these antibody response features in the Grand Challenges 6-74 cohort. Both the SeroScore and RISK6 correlated better with risk of TB progression in adolescents compared with adults, and in males compared with females. This suggests that age and sex are important, underappreciated modifiers of antibody responses associated with TB progression.
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Affiliation(s)
- Leela R L Davies
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
- Brigham and Women's Hospital, Boston, MA, USA
| | - Chuangqi Wang
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Pia Steigler
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
- Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine and Division of Immunology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Kathryn A Bowman
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA
- Brigham and Women's Hospital, Boston, MA, USA
| | | | - Mark Hatherill
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Michelle Fisher
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Stanley Kimbung Mbandi
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Miguel Rodo
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Tom H M Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, the Netherlands
| | - Hazel M Dockrell
- Vaccines and Immunity Theme, Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Jayne S Sutherland
- Vaccines and Immunity Theme, Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Banjul, The Gambia
| | - Harriet Mayanja-Kizza
- Department of Medicine and Department of Microbiology, Makerere University, Kampala, Uganda
| | - W Henry Boom
- Tuberculosis Research Unit, Case Western Reserve University, Cleveland, OH, USA
| | - Gerhard Walzl
- Department of Science and Technology National Research Foundation Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Stefan H E Kaufmann
- Max Planck Institute for Infection Biology, Berlin, Germany
- Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Hagler Institute for Advanced Study, Texas A&M University, College Station, TX, USA
| | - Elisa Nemes
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Thomas J Scriba
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | | | - Galit Alter
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA, USA.
- Moderna Therapeutics, Cambridge, MA, USA.
| | - Sarah M Fortune
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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9
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Davies ML, Biryukov SS, Rill NO, Klimko CP, Hunter M, Dankmeyer JL, Miller JA, Shoe JL, Mlynek KD, Talyansky Y, Toothman RG, Qiu J, Bozue JA, Cote CK. Sex differences in immune protection in mice conferred by heterologous vaccines for pneumonic plague. Front Immunol 2024; 15:1397579. [PMID: 38835755 PMCID: PMC11148226 DOI: 10.3389/fimmu.2024.1397579] [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: 03/07/2024] [Accepted: 04/25/2024] [Indexed: 06/06/2024] Open
Abstract
Background Yersinia pestis is the etiological agent of plague, which can manifest as bubonic, septicemic, and/or pneumonic disease. Plague is a severe and rapidly progressing illness that can only be successfully treated with antibiotics initiated early after infection. There are no FDA-approved vaccines for plague, and some vaccine candidates may be less effective against pneumonic plague than bubonic plague. Y. pestis is not known to impact males and females differently in mechanisms of pathogenesis or severity of infection. However, one previous study reported sex-biased vaccine effectiveness after intranasal Y. pestis challenge. As part of developing a safe and effective vaccine, it is essential that potential sex differences are characterized. Methods In this study we evaluated novel vaccines in male and female BALB/c mice using a heterologous prime-boost approach and monitored survival, bacterial load in organs, and immunological correlates. Our vaccine strategy consisted of two subcutaneous immunizations, followed by challenge with aerosolized virulent nonencapsulated Y. pestis. Mice were immunized with a combination of live Y. pestis pgm- pPst-Δcaf1, live Y. pestis pgm- pPst-Δcaf1/ΔyopD, or recombinant F1-V (rF1-V) combined with adjuvants. Results The most effective vaccine regimen was initial priming with rF1-V, followed by boost with either of the live attenuated strains. However, this and other strategies were more protective in female mice. Males had higher bacterial burden and differing patterns of cytokine expression and serum antibody titers. Male mice did not demonstrate synergy between vaccination and antibiotic treatment as repeatedly observed in female mice. Conclusions This study provides new knowledge about heterologous vaccine strategies, sex differences in plague-vaccine efficacy, and the immunological factors that differ between male and female mice.
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Affiliation(s)
- Michael L Davies
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Sergei S Biryukov
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Nathaniel O Rill
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Christopher P Klimko
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Melissa Hunter
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Jennifer L Dankmeyer
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Jeremy A Miller
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Jennifer L Shoe
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Kevin D Mlynek
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Yuli Talyansky
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Ronald G Toothman
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Ju Qiu
- Regulated Research Administration: Biostatistics Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Joel A Bozue
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
| | - Christopher K Cote
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, United States
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10
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Ma L, Gilani A, Rubio-Navarro A, Cortada E, Li A, Reilly SM, Tang L, Lo JC. Adipsin and adipocyte-derived C3aR1 regulate thermogenic fat in a sex-dependent fashion. JCI Insight 2024; 9:e178925. [PMID: 38713526 DOI: 10.1172/jci.insight.178925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 04/26/2024] [Indexed: 05/09/2024] Open
Abstract
Thermogenesis in beige/brown adipose tissues can be leveraged to combat metabolic disorders such as type 2 diabetes and obesity. The complement system plays pleiotropic roles in metabolic homeostasis and organismal energy balance with canonical effects on immune cells and noncanonical effects on nonimmune cells. The adipsin/C3a/C3a receptor 1 (C3aR1) pathway stimulates insulin secretion and sustains pancreatic β cell mass. However, its role in adipose thermogenesis has not been defined. Here, we show that male Adipsin/Cfd-knockout mice exhibited increased energy expenditure and white adipose tissue (WAT) browning. In addition, male adipocyte-specific C3aR1-knockout mice exhibited enhanced WAT thermogenesis and increased respiration. In stark contrast, female adipocyte-specific C3aR1-knockout mice displayed decreased brown fat thermogenesis and were cold intolerant. Female mice expressed lower levels of Adipsin in thermogenic adipocytes and adipose tissues than males. C3aR1 was also lower in female subcutaneous adipose tissue than in males. Collectively, these results reveal sexual dimorphism in the adipsin/C3a/C3aR1 axis in regulating adipose thermogenesis and defense against cold stress. Our findings establish a potentially new role of the alternative complement pathway in adaptive thermogenesis and highlight sex-specific considerations in potential therapeutic targets for metabolic diseases.
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Affiliation(s)
- Lunkun Ma
- Division of Cardiology, Department of Medicine
- Weill Center for Metabolic Health; and
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Ankit Gilani
- Division of Cardiology, Department of Medicine
- Weill Center for Metabolic Health; and
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Alfonso Rubio-Navarro
- Division of Cardiology, Department of Medicine
- Weill Center for Metabolic Health; and
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Eric Cortada
- Division of Cardiology, Department of Medicine
- Weill Center for Metabolic Health; and
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Ang Li
- Division of Cardiology, Department of Medicine
- Weill Center for Metabolic Health; and
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Shannon M Reilly
- Division of Cardiology, Department of Medicine
- Weill Center for Metabolic Health; and
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - James C Lo
- Division of Cardiology, Department of Medicine
- Weill Center for Metabolic Health; and
- Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
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11
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Kelkar NS, Goldberg BS, Dufloo J, Bruel T, Schwartz O, Hessell AJ, Ackerman ME. Sex- and species-associated differences in complement-mediated immunity in humans and rhesus macaques. mBio 2024; 15:e0028224. [PMID: 38385704 PMCID: PMC10936177 DOI: 10.1128/mbio.00282-24] [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: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/23/2024] Open
Abstract
The complement system can be viewed as a "moderator" of innate immunity, "instructor" of humoral immunity, and "regulator" of adaptive immunity. While sex is known to affect humoral and cellular immune systems, its impact on complement in humans and rhesus macaques, a commonly used non-human primate model system, has not been well studied. To address this knowledge gap, we analyzed serum samples from 90 humans and 72 rhesus macaques for the abundance and activity of the complement system components. While sequences of cascade proteins were highly conserved, dramatically different levels were observed between species. Whereas the low levels detected in rhesus samples raised questions about the suitability of the test for use with macaque samples, differences in levels of complement proteins were observed in male and female humans. Levels of total and antibody-dependent deposition of C1q and C3b on a glycosylated antigen differed between humans and rhesus, suggesting differential recognition of glycans and balance between classical and alternative activation pathways. Functional differences in complement-mediated lysis of antibody-sensitized cells were observed in multiple assays and showed that human females frequently exhibited higher lytic activity than human males or rhesus macaques, which typically did not exhibit such sex-associated differences. Other differences between species and sexes were observed in more narrow contexts-for only certain antibodies, antigens, or assays. Collectively, these results expand knowledge of sex-associated differences in the complement system in humans, identifying differences absent from rhesus macaques.IMPORTANCEThe complement system is a critical part of host defense to many bacterial, fungal, and viral infections. In parallel, rich epidemiological, clinical, and biomedical research evidence demonstrates that sex is an important biological variable in immunity, and many sex-specific differences in immune system are intimately tied with disease outcomes. This study focuses on the intersection of these two factors to define the impact of sex on complement pathway components and activities. This work expands our knowledge of sex-associated differences in the complement system in humans and also identifies the differences that appear to be absent in rhesus macaques, a popular non-human primate model. Whereas differences between species suggest potential limitations in the ability of macaque model to recapitulate human biology, knowledge of sex-based differences in humans has the potential to inform clinical research and practice.
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Affiliation(s)
- Natasha S. Kelkar
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Dartmouth College, Hanover, New Hampshire, USA
| | | | - Jérémy Dufloo
- Institut Pasteur, Université de Paris, CNRS UMR3569, Virus and Immunity Unit, Paris, France
| | - Timothée Bruel
- Institut Pasteur, Université de Paris, CNRS UMR3569, Virus and Immunity Unit, Paris, France
- Vaccine Research Institute, Créteil, France
| | - Olivier Schwartz
- Institut Pasteur, Université de Paris, CNRS UMR3569, Virus and Immunity Unit, Paris, France
- Vaccine Research Institute, Créteil, France
| | - Ann J. Hessell
- Division of Pathobiology and Immunology, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, Oregon, USA
| | - Margaret E. Ackerman
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Dartmouth College, Hanover, New Hampshire, USA
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire, USA
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12
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Charalampous C, Dasari S, McPhail E, Theis JD, Vrana JA, Dispenzieri A, Leung N, Muchtar E, Gertz M, Ramirez-Alvarado M, Kourelis T. A proteomic atlas of kidney amyloidosis provides insights into disease pathogenesis. Kidney Int 2024; 105:484-495. [PMID: 38096952 PMCID: PMC10922603 DOI: 10.1016/j.kint.2023.11.023] [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: 03/28/2023] [Revised: 10/04/2023] [Accepted: 11/05/2023] [Indexed: 01/18/2024]
Abstract
The mechanisms of tissue damage in kidney amyloidosis are not well described. To investigate this further, we used laser microdissection-mass spectrometry to identify proteins deposited in amyloid plaques (expanded proteome) and proteins overexpressed in plaques compared to controls (plaque-specific proteome). This study encompassed 2650 cases of amyloidosis due to light chain (AL), heavy chain (AH), leukocyte chemotactic factor-2-type (ALECT2), secondary (AA), fibrinogen (AFib), apo AIV (AApoAIV), apo CII (AApoCII) and 14 normal/disease controls. We found that AFib, AA, and AApoCII have the most distinct proteomes predominantly driven by increased complement pathway proteins. Clustering of cases based on the expanded proteome identified two ALECT2 and seven AL subtypes. The main differences within the AL and ALECT2 subtypes were driven by complement proteins and, for AL only, 14-3-3 family proteins (a family of structurally similar phospho-binding proteins that regulate major cellular functions) widely implicated in kidney tissue dysfunction. The kidney AL plaque-specific proteome consisted of 24 proteins, including those implicated in kidney damage (α1 antitrypsin and heat shock protein β1). Hierarchical clustering of AL cases based on their plaque-specific proteome identified four clusters, of which one was associated with improved kidney survival and was characterized by higher overall proteomic content and 14-3-3 proteins but lower levels of light chains and most signature proteins. Thus, our results suggest that there is significant heterogeneity across and within amyloid types, driven predominantly by complement proteins, and that the plaque protein burden does not correlate with amyloid toxicity.
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Affiliation(s)
| | - Surendra Dasari
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Ellen McPhail
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jason D Theis
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Julie A Vrana
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Nelson Leung
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | - Eli Muchtar
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | - Morie Gertz
- Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
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13
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Evans DS, Young D, Tanaka T, Basisty N, Bandinelli S, Ferrucci L, Campisi J, Schilling B. Proteomic Analysis of the Senescence-Associated Secretory Phenotype: GDF-15, IGFBP-2, and Cystatin-C Are Associated With Multiple Aging Traits. J Gerontol A Biol Sci Med Sci 2024; 79:glad265. [PMID: 37982669 PMCID: PMC10876076 DOI: 10.1093/gerona/glad265] [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: 03/30/2023] [Indexed: 11/21/2023] Open
Abstract
Cellular senescence, a hallmark of aging, results in a senescence-associated secretory phenotype (SASP) with an increased production of proinflammatory cytokines, growth factors, and proteases. Evidence from nonhuman models demonstrates that SASP contributes to tissue dysfunction and pathological effects of aging. However, there are relatively few human studies on the relationship between SASP and aging-related health outcomes. Proteins from the SASP Atlas were measured in plasma using aptamer-based proteomics (SomaLogic). Regression models were used to identify SASP protein associations with aging-related traits representing multiple aspects of physiology in 1 201 participants from 2 human cohort studies (BLSA/GESTALT and InCHIANTI). Traits examined were fasting glucose, C-reactive protein, interleukin-6, alkaline phosphatase, blood urea nitrogen, albumin, red blood cell distribution width, waist circumference, systolic and diastolic blood pressure, gait speed, and grip strength. Study results were combined with a fixed-effect inverse-variance weighted meta-analysis. In the meta-analysis, 28 of 77 SASP proteins were significantly associated with age. Of the 28 age-associated SASP proteins, 18 were significantly associated with 1 or more clinical traits, and 7 SASP proteins were significantly associated with 3 or more traits. Growth/differentiation factor 15, Insulin-like growth factor-binding protein 2, and Cystatin-C showed significant associations with inflammatory markers and measures of physical function (grip strength or gait speed). These results support the relevance of SASP proteins to human aging, identify specific traits that are potentially affected by SASP, and prioritize specific SASP proteins for their utility as biomarkers of human aging.
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Affiliation(s)
- Daniel S Evans
- California Pacific Medical Center Research Institute, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - Danielle Young
- California Pacific Medical Center Research Institute, San Francisco, California, USA
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - Toshiko Tanaka
- Longitudinal Studies Section, Translational Gerontology Branch, NIA, NIH, Baltimore, Maryland, USA
| | - Nathan Basisty
- Longitudinal Studies Section, Translational Gerontology Branch, NIA, NIH, Baltimore, Maryland, USA
| | | | - Luigi Ferrucci
- Longitudinal Studies Section, Translational Gerontology Branch, NIA, NIH, Baltimore, Maryland, USA
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, California, USA
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14
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Canup B, Rogers P, Paredes A, Manheng W, Lyn-Cook B, Fahmi T. Investigation of sex-based differences in the immunotoxicity of silver nanoparticles. Nanotoxicology 2024; 18:134-159. [PMID: 38444264 DOI: 10.1080/17435390.2024.2323070] [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: 11/14/2023] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
The growing application of silver nanoparticles (AgNPs) in consumer, healthcare, and industrial products has raised concern over potential health implications due to increasing exposure. The evaluation of the immune response to nanomaterials is one of the key criteria to assess their biocompatibility. There are well-recognized sex-based differences in innate and adaptive immune responses. However, there is limited information available using human models. The aim was to investigate the potential sex-based differences in immune functions after exposure to AgNPs using human peripheral blood mononuclear cells (PBMCs) and plasma from healthy donors. These functions include inflammasome activation, cytokine expression, leukocyte proliferation, chemotaxis, plasma coagulation, and complement activation. AgNPs were characterized by dynamic light scattering and transmission electron microscopy. Inflammasome activation by AgNPs was measured after 6- and 24-hours incubations. AgNPs-induced inflammasome activation was significantly higher in the females, especially for the 6-hour exposure. No sex-based differences were observed for Ag ions controls. Younger donors exhibited significantly more inflammasome activation than older donors after 24-hours exposure. IL-10 was significantly suppressed in males and females after exposure. AgNPs suppressed leukocyte proliferation similarly in males and females. No chemoattractant effects, no alterations in plasma coagulation, or activation of the complement were observed after AgNPs exposure. In conclusion, the results highlight that there are distinct sex-based differences in inflammasome activation after exposure to AgNPs in human PBMCs. The results highlight the importance of considering sex-based differences in inflammasome activation induced by exposure to AgNPs in any future biocompatibility assessment for products containing AgNPs.
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Affiliation(s)
- Brandon Canup
- Division of Biochemical Toxicology, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Paul Rogers
- Division of Bioinformatics and Biostatistics, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Angel Paredes
- Nanotechnology Core Facility, Office of Scientific Coordination, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Wimolnut Manheng
- Division of Hematology Oncology Toxicology, Office of Oncologic Diseases, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Beverly Lyn-Cook
- Division of Biochemical Toxicology, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Tariq Fahmi
- Division of Biochemical Toxicology, Office of Research, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
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15
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Raue U, Begue G, Minchev K, Jemiolo B, Gries KJ, Chambers T, Rubenstein A, Zaslavsky E, Sealfon SC, Trappe T, Trappe S. Fast and slow muscle fiber transcriptome dynamics with lifelong endurance exercise. J Appl Physiol (1985) 2024; 136:244-261. [PMID: 38095016 PMCID: PMC11219013 DOI: 10.1152/japplphysiol.00442.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/24/2023] [Accepted: 12/05/2023] [Indexed: 01/26/2024] Open
Abstract
We investigated fast and slow muscle fiber transcriptome exercise dynamics among three groups of men: lifelong exercisers (LLE, n = 8, 74 ± 1 yr), old healthy nonexercisers (OH, n = 9, 75 ± 1 yr), and young exercisers (YE, n = 8, 25 ± 1 yr). On average, LLE had exercised ∼4 day·wk-1 for ∼8 h·wk-1 over 53 ± 2 years. Muscle biopsies were obtained pre- and 4 h postresistance exercise (3 × 10 knee extensions at 70% 1-RM). Fast and slow fiber size and function were assessed preexercise with fast and slow RNA-seq profiles examined pre- and postexercise. LLE fast fiber size was similar to OH, which was ∼30% smaller than YE (P < 0.05) with contractile function variables among groups, resulting in lower power in LLE (P < 0.05). LLE slow fibers were ∼30% larger and more powerful compared with YE and OH (P < 0.05). At the transcriptome level, fast fibers were more responsive to resistance exercise compared with slow fibers among all three cohorts (P < 0.05). Exercise induced a comprehensive biological response in fast fibers (P < 0.05) including transcription, signaling, skeletal muscle cell differentiation, and metabolism with vast differences among the groups. Fast fibers from YE exhibited a growth and metabolic signature, with LLE being primarily metabolic, and OH showing a strong stress-related response. In slow fibers, only LLE exhibited a biological response to exercise (P < 0.05), which was related to ketone and lipid metabolism. The divergent exercise transcriptome signatures provide novel insight into the molecular regulation in fast and slow fibers with age and exercise and suggest that the ∼5% weekly exercise time commitment of the lifelong exercisers provided a powerful investment for fast and slow muscle fiber metabolic health at the molecular level.NEW & NOTEWORTHY This study provides the first insights into fast and slow muscle fiber transcriptome dynamics with lifelong endurance exercise. The fast fibers were more responsive to exercise with divergent transcriptome signatures among young exercisers (growth and metabolic), lifelong exercisers (metabolic), and old healthy nonexercisers (stress). Only lifelong exercisers had a biological response in slow fibers (metabolic). These data provide novel insights into fast and slow muscle fiber health at the molecular level with age and exercise.
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Affiliation(s)
- Ulrika Raue
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Gwenaelle Begue
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Kiril Minchev
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Bozena Jemiolo
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Kevin J Gries
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Toby Chambers
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Aliza Rubenstein
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Elena Zaslavsky
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Stuart C Sealfon
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Todd Trappe
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Scott Trappe
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
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16
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Meuleman MS, Duval A, Grunenwald A, Rezola Artero M, Dermani M, Peliconi J, Revel M, Vieira-Martins P, Courbebaisse M, Parfait B, Lebeaux D, Friedlander G, Roumenina L, Chauvet S, Frémeaux-Bacchi V, Dragon-Durey MA. Usefulness and analytical performances of complement multiplex assay for measuring complement biomarkers in plasma. Clin Chim Acta 2024; 554:117750. [PMID: 38176523 DOI: 10.1016/j.cca.2023.117750] [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: 11/20/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
INTRODUCTION The complement system is involved in numerous diseases, through diverse mechanisms and degree of activation. With the emergence of complement targeting therapeutic, simple and accessible tools to evaluate the extent of complement activation are strongly needed. METHODS We evaluated two multiplex panels, measuring complement activation fragments (C4a, C3a, C5a, Bb, Ba, sC5b9) and intact components or regulators (C1q, C2, C3, C4, C5, FD, FP, FH, FI). The specificity of each measurement was assessed by using complement proteins depleted sera and plasma collected from patients with complement deficiencies. Normal values distribution was estimated using 124 plasma samples from healthy donors and complement activation profile was assessed in plasma collected from 31 patients with various complement-mediated disorders. RESULTS We observed good inter-assay variation. All tested protein deficiencies were accurately detected. We established assay-specific reference values for each analyte. Except for C3, C4 and C4a, the majority of the measurements were in good agreement with references methods or published data. CONCLUSION Our study substantiates the utility of the Complement Multiplex assay as a tool for measuring complement activation and deficiencies. Quantifying complement cleavage fragments in patients exhibiting classical or alternative pathway activation allowed evaluating the activation state of the whole cascade.
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Affiliation(s)
- Marie-Sophie Meuleman
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France; Laboratory of Immunology, Georges Pompidou European Hospital, APHP, Paris, France
| | - Anna Duval
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France; Department of Nephrology, Strasbourg University Hospital, Strasbourg, France
| | - Anne Grunenwald
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France; Department of Nephrology, Poissy Intercommunal Hospital, Poissy, France
| | - Mikel Rezola Artero
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France
| | - Mohamed Dermani
- Laboratory of Immunology, Georges Pompidou European Hospital, APHP, Paris, France
| | - Julie Peliconi
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France
| | - Margot Revel
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France
| | - Paula Vieira-Martins
- Laboratory of Immunology, Georges Pompidou European Hospital, APHP, Paris, France
| | - Marie Courbebaisse
- Paris Cité University, Physiology Department, European Georges-Pompidou Hospital, APHP, INSERM U1151, Paris, France
| | - Béatrice Parfait
- Centre de Ressources Biologiques - site Cochin, Fédération des CRB/PRB, DMU BioPhyGen, AP-HP.Centre-Université Paris Cité, Hôpital Cochin, Paris, France
| | - David Lebeaux
- Institut Pasteur, Université Paris Cité, CNRS UMR 6047, Genetics of Biofilms Laboratory, 75015 Paris, France; Service de Microbiologie, Unité Mobile d'Infectiologie, AP-HP, Hôpital Européen Georges Pompidou, 20 rue Leblanc, 75015 Paris, France
| | | | - Lubka Roumenina
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France
| | - Sophie Chauvet
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France; Paris Cité University, Paris, France; Department of Nephrology, Georges Pompidou European Hospital, APHP, Paris, France
| | - Véronique Frémeaux-Bacchi
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France; Laboratory of Immunology, Georges Pompidou European Hospital, APHP, Paris, France
| | - Marie-Agnès Dragon-Durey
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université Paris Cité, Inflammation, Complement and Cancer Team, Paris, France; Laboratory of Immunology, Georges Pompidou European Hospital, APHP, Paris, France; Paris Cité University, Paris, France.
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17
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Wen L, Bi D, Shen Y. Complement-mediated synapse loss in Alzheimer's disease: mechanisms and involvement of risk factors. Trends Neurosci 2024; 47:135-149. [PMID: 38129195 DOI: 10.1016/j.tins.2023.11.010] [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: 06/20/2023] [Revised: 10/25/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
The complement system is increasingly recognized as a key player in the synapse loss and cognitive impairments observed in Alzheimer's disease (AD). In particular, the process of complement-dependent synaptic pruning through phagocytosis is over-activated in AD brains, driving detrimental excessive synapse elimination and contributing to synapse loss, which is the strongest neurobiological correlate of cognitive impairments in AD. Herein we review recent advances in characterizing complement-mediated synapse loss in AD, summarize the underlying mechanisms, and discuss the possible involvement of AD risk factors such as aging and various risk genes. We conclude with an overview of key questions that remain to be addressed.
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Affiliation(s)
- Lang Wen
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China
| | - Danlei Bi
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China; Anhui Province Key Laboratory of Biomedical Aging Research, University of Science and Technology of China, Hefei, 230026, China; Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230026, China; CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, University of Science and Technology of China, Hefei, 230026, China; Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Yong Shen
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China; Anhui Province Key Laboratory of Biomedical Aging Research, University of Science and Technology of China, Hefei, 230026, China; CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, University of Science and Technology of China, Hefei, 230026, China; Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.
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18
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Asteris PG, Gandomi AH, Armaghani DJ, Tsoukalas MZ, Gavriilaki E, Gerber G, Konstantakatos G, Skentou AD, Triantafyllidis L, Kotsiou N, Braunstein E, Chen H, Brodsky R, Touloumenidou T, Sakellari I, Alkayem NF, Bardhan A, Cao M, Cavaleri L, Formisano A, Guney D, Hasanipanah M, Khandelwal M, Mohammed AS, Samui P, Zhou J, Terpos E, Dimopoulos MA. Genetic justification of COVID-19 patient outcomes using DERGA, a novel data ensemble refinement greedy algorithm. J Cell Mol Med 2024; 28:e18105. [PMID: 38339761 PMCID: PMC10863978 DOI: 10.1111/jcmm.18105] [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: 06/12/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 02/12/2024] Open
Abstract
Complement inhibition has shown promise in various disorders, including COVID-19. A prediction tool including complement genetic variants is vital. This study aims to identify crucial complement-related variants and determine an optimal pattern for accurate disease outcome prediction. Genetic data from 204 COVID-19 patients hospitalized between April 2020 and April 2021 at three referral centres were analysed using an artificial intelligence-based algorithm to predict disease outcome (ICU vs. non-ICU admission). A recently introduced alpha-index identified the 30 most predictive genetic variants. DERGA algorithm, which employs multiple classification algorithms, determined the optimal pattern of these key variants, resulting in 97% accuracy for predicting disease outcome. Individual variations ranged from 40 to 161 variants per patient, with 977 total variants detected. This study demonstrates the utility of alpha-index in ranking a substantial number of genetic variants. This approach enables the implementation of well-established classification algorithms that effectively determine the relevance of genetic variants in predicting outcomes with high accuracy.
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Affiliation(s)
- Panagiotis G. Asteris
- Computational Mechanics Laboratory, School of Pedagogical and Technological EducationAthensGreece
| | - Amir H. Gandomi
- Faculty of Engineering & ITUniversity of Technology SydneySydneyNew South WalesAustralia
- University Research and Innovation Center (EKIK), Óbuda UniversityBudapestHungary
| | - Danial J. Armaghani
- School of Civil and Environmental EngineeringUniversity of Technology SydneySydneyNew South WalesAustralia
| | - Markos Z. Tsoukalas
- Computational Mechanics Laboratory, School of Pedagogical and Technological EducationAthensGreece
| | - Eleni Gavriilaki
- 2nd Propedeutic Department of Internal MedicineAristotle University of ThessalonikiThessalonikiGreece
| | - Gloria Gerber
- Hematology DivisionJohns Hopkins UniversityBaltimoreUSA
| | - Gerasimos Konstantakatos
- Computational Mechanics Laboratory, School of Pedagogical and Technological EducationAthensGreece
| | - Athanasia D. Skentou
- Computational Mechanics Laboratory, School of Pedagogical and Technological EducationAthensGreece
| | - Leonidas Triantafyllidis
- Computational Mechanics Laboratory, School of Pedagogical and Technological EducationAthensGreece
| | - Nikolaos Kotsiou
- 2nd Propedeutic Department of Internal MedicineAristotle University of ThessalonikiThessalonikiGreece
| | | | - Hang Chen
- Hematology DivisionJohns Hopkins UniversityBaltimoreUSA
| | | | | | - Ioanna Sakellari
- Hematology Department – BMT UnitG Papanicolaou HospitalThessalonikiGreece
| | | | - Abidhan Bardhan
- Civil Engineering DepartmentNational Institute of Technology PatnaPatnaIndia
| | - Maosen Cao
- Department of Engineering MechanicsHohai UniversityNanjingChina
| | - Liborio Cavaleri
- Department of Civil, Environmental, Aerospace and Materials EngineeringUniversity of PalermoPalermoItaly
| | - Antonio Formisano
- Department of Structures for Engineering and ArchitectureUniversity of Naples “Federico II”NaplesItaly
| | - Deniz Guney
- Engineering FacultySan Diego State UniversitySan DiegoCaliforniaUSA
| | - Mahdi Hasanipanah
- Department of Geotechnics and Transportation, Faculty of Civil EngineeringUniversiti Teknologi MalaysiaJohor BahruMalaysia
| | - Manoj Khandelwal
- Institute of Innovation, Science and SustainabilityFederation University AustraliaBallaratVictoriaAustralia
| | | | - Pijush Samui
- Civil Engineering DepartmentNational Institute of Technology PatnaPatnaIndia
| | - Jian Zhou
- School of Resources and Safety EngineeringCentral South UniversityChangshaChina
| | - Evangelos Terpos
- Department of Clinical Therapeutics, Medical School, Faculty of MedicineNational Kapodistrian University of AthensAthensGreece
| | - Meletios A. Dimopoulos
- Department of Clinical Therapeutics, Medical School, Faculty of MedicineNational Kapodistrian University of AthensAthensGreece
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19
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Mastellos DC, Hajishengallis G, Lambris JD. A guide to complement biology, pathology and therapeutic opportunity. Nat Rev Immunol 2024; 24:118-141. [PMID: 37670180 DOI: 10.1038/s41577-023-00926-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2023] [Indexed: 09/07/2023]
Abstract
Complement has long been considered a key innate immune effector system that mediates host defence and tissue homeostasis. Yet, growing evidence has illuminated a broader involvement of complement in fundamental biological processes extending far beyond its traditional realm in innate immunity. Complement engages in intricate crosstalk with multiple pattern-recognition and signalling pathways both in the extracellular and intracellular space. Besides modulating host-pathogen interactions, this crosstalk guides early developmental processes and distinct cell trajectories, shaping tissue immunometabolic and regenerative programmes in different physiological systems. This Review provides a guide to the system-wide functions of complement. It highlights illustrative paradigm shifts that have reshaped our understanding of complement pathobiology, drawing examples from evolution, development of the central nervous system, tissue regeneration and cancer immunity. Despite its tight spatiotemporal regulation, complement activation can be derailed, fuelling inflammatory tissue pathology. The pervasive contribution of complement to disease pathophysiology has inspired a resurgence of complement therapeutics with major clinical developments, some of which have challenged long-held dogmas. We thus highlight major therapeutic concepts and milestones in clinical complement intervention.
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Affiliation(s)
| | - George Hajishengallis
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - John D Lambris
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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20
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Ricardo-da-Silva FY, Armstrong-Jr R, Ramos MMDA, Vidal-Dos-Santos M, Jesus Correia C, Ottens PJ, Moreira LFP, Leuvenink HGD, Breithaupt-Faloppa AC. Male versus female inflammatory response after brain death model followed by ex vivo lung perfusion. Biol Sex Differ 2024; 15:11. [PMID: 38287395 PMCID: PMC10826050 DOI: 10.1186/s13293-024-00581-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 01/02/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Ex vivo lung perfusion (EVLP) is a useful tool for assessing lung grafts quality before transplantation. Studies indicate that donor sex is as an important factor for transplant outcome, as females present higher inflammatory response to brain death (BD) than males. Here, we investigated sex differences in the lungs of rats subjected to BD followed by EVLP. METHODS Male and female Wistar rats were subjected to BD, and as controls sham animals. Arterial blood was sampled for gas analysis. Heart-lung blocks were kept in cold storage (1 h) and normothermic EVLP carried out (4 h), meanwhile ventilation parameters were recorded. Perfusate was sampled for gas analysis and IL-1β levels. Leukocyte infiltration, myeloperoxidase presence, IL-1β gene expression, and long-term release in lung culture (explant) were evaluated. RESULTS Brain dead females presented a low lung function after BD, compared to BD-males; however, at the end of the EVLP period oxygenation capacity decreased in all BD groups. Overall, ventilation parameters were maintained in all groups. After EVLP lung infiltrate was higher in brain dead females, with higher neutrophil content, and accompanied by high IL-1β levels, with increased gene expression and concentration in the culture medium (explant) 24 h after EVLP. Female rats presented higher lung inflammation after BD than male rats. Despite maintaining lung function and ventilation mechanics parameters for 4 h, EVLP was not able to alter this profile. CONCLUSION In this context, further studies should focus on therapeutic measures to control inflammation in donor or during EVLP to increase lung quality.
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Affiliation(s)
- Fernanda Yamamoto Ricardo-da-Silva
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), HC-FMUSP, Instituto Do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 2º Andar, Sala 2146, São Paulo, 01246-903, Brazil
| | - Roberto Armstrong-Jr
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), HC-FMUSP, Instituto Do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 2º Andar, Sala 2146, São Paulo, 01246-903, Brazil
- Department of Surgery, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Mayara Munhoz de Assis Ramos
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), HC-FMUSP, Instituto Do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 2º Andar, Sala 2146, São Paulo, 01246-903, Brazil
- Department of Surgery, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Marina Vidal-Dos-Santos
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), HC-FMUSP, Instituto Do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 2º Andar, Sala 2146, São Paulo, 01246-903, Brazil
- Department of Surgery, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Cristiano Jesus Correia
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), HC-FMUSP, Instituto Do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 2º Andar, Sala 2146, São Paulo, 01246-903, Brazil
| | - Petra J Ottens
- Department of Surgery, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Luiz Felipe Pinho Moreira
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), HC-FMUSP, Instituto Do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 2º Andar, Sala 2146, São Paulo, 01246-903, Brazil
| | - Henri G D Leuvenink
- Department of Surgery, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Ana Cristina Breithaupt-Faloppa
- Laboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), HC-FMUSP, Instituto Do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 2º Andar, Sala 2146, São Paulo, 01246-903, Brazil.
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21
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Noce D, Foco L, Orth-Höller D, König E, Barbieri G, Pietzner M, Ghasemi-Semeskandeh D, Coassin S, Fuchsberger C, Gögele M, Del Greco M F, De Grandi A, Summerer M, Wheeler E, Langenberg C, Lass-Flörl C, Pramstaller PP, Kronenberg F, Würzner R, Pattaro C. Genetic determinants of complement activation in the general population. Cell Rep 2024; 43:113611. [PMID: 38159276 DOI: 10.1016/j.celrep.2023.113611] [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: 09/30/2022] [Revised: 09/08/2023] [Accepted: 12/07/2023] [Indexed: 01/03/2024] Open
Abstract
Complement is a fundamental innate immune response component. Its alterations are associated with severe systemic diseases. To illuminate the complement's genetic underpinnings, we conduct genome-wide association studies of the functional activity of the classical (CP), lectin (LP), and alternative (AP) complement pathways in the Cooperative Health Research in South Tyrol study (n = 4,990). We identify seven loci, encompassing 13 independent, pathway-specific variants located in or near complement genes (CFHR4, C7, C2, MBL2) and non-complement genes (PDE3A, TNXB, ABO), explaining up to 74% of complement pathways' genetic heritability and implicating long-range haplotypes associated with LP at MBL2. Two-sample Mendelian randomization analyses, supported by transcriptome- and proteome-wide colocalization, confirm known causal pathways, establish within-complement feedback loops, and implicate causality of ABO on LP and of CFHR2 and C7 on AP. LP causally influences collectin-11 and KAAG1 levels and the risk of mouth ulcers. These results build a comprehensive resource to investigate the role of complement in human health.
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Affiliation(s)
- Damia Noce
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy; Institute of Hygiene & Medical Microbiology, Department of Hygiene, Microbiology and Public Health, Medical University of Innsbruck, Schöpfstr. 41, 6020 Innsbruck, Austria
| | - Luisa Foco
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy
| | - Dorothea Orth-Höller
- Institute of Hygiene & Medical Microbiology, Department of Hygiene, Microbiology and Public Health, Medical University of Innsbruck, Schöpfstr. 41, 6020 Innsbruck, Austria; MB-LAB - Clinical Microbiology Laboratory, Franz-Fischer-Str. 7b, 6020 Innsbruck, Austria
| | - Eva König
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy
| | - Giulia Barbieri
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy; Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Maik Pietzner
- Computational Medicine, Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Berlin, Germany; MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Dariush Ghasemi-Semeskandeh
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy; Department of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands
| | - Stefan Coassin
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Schöpfstr. 41, 6020 Innsbruck, Austria
| | - Christian Fuchsberger
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy
| | - Martin Gögele
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy
| | - Fabiola Del Greco M
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy
| | - Alessandro De Grandi
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy
| | - Monika Summerer
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Schöpfstr. 41, 6020 Innsbruck, Austria
| | - Eleanor Wheeler
- MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Claudia Langenberg
- Computational Medicine, Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Cornelia Lass-Flörl
- Institute of Hygiene & Medical Microbiology, Department of Hygiene, Microbiology and Public Health, Medical University of Innsbruck, Schöpfstr. 41, 6020 Innsbruck, Austria
| | - Peter Paul Pramstaller
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy
| | - Florian Kronenberg
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Schöpfstr. 41, 6020 Innsbruck, Austria.
| | - Reinhard Würzner
- Institute of Hygiene & Medical Microbiology, Department of Hygiene, Microbiology and Public Health, Medical University of Innsbruck, Schöpfstr. 41, 6020 Innsbruck, Austria.
| | - Cristian Pattaro
- Institute for Biomedicine (affiliated to the University of Lübeck), Eurac Research, Via Volta 21, 39100 Bolzano, Italy.
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22
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Rajamanickam A, Kumar NP, Venkataraman A, Varadarjan P, Selladurai E, Sankaralingam T, Thiruvengadam K, Selvam R, Thimmaiah A, Natarajan S, Ramaswamy G, Putlibai S, Sadasivam K, Sundaram B, Hissar S, Ranganathan UD, Babu S. Sex-specific differences in systemic immune responses in MIS-C children. Sci Rep 2024; 14:1720. [PMID: 38243064 PMCID: PMC10799056 DOI: 10.1038/s41598-024-52116-1] [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: 06/12/2023] [Accepted: 01/14/2024] [Indexed: 01/21/2024] Open
Abstract
Multisystem Inflammatory Syndrome in Children (MIS-C) is a rare manifestation of Severe Acute Respiratory Syndrome-CoronaVirus-2 (SARS-CoV-2) infection that can result in increased morbidity and mortality. Mounting evidence describes sex disparities in the clinical outcomes of coronavirus disease 2019 (COVID-19). However, there is a lack of information on sex-specific differences in immune responses in MIS-C. This study is an observational and cross-sectional study and we wanted to examine immune parameters such as cytokines, chemokines, acute phase proteins (APPs), growth factors, microbial translocation markers (MTMs), complement components and matrix metalloproteinases (MMPs) in MIS-C children, based on sex. Male children were associated with heightened levels of pro-inflammatory cytokines-IFNγ, IL-2, TNFα, IL-1α, IL-1β, IL-6, IL-12, G-CSF and GM-CSF, chemokines-CCL2, CCL11, CXCL1, CXCL8 and CXCL10, acute phase proteins-α-2M, CRP, growth factors VEGF and TGFα, microbial translocation markers- iFABP, LBP, EndoCAb, complement components-C1q, MBL and C3 and matrix metalloproteinases MMP-8 and MMP-9 compared to female children with MIS-C. These results indicate that the heightened immune response in males is a characteristic feature of MIS-C. These findings might explain the differential disease pathogenesis in males compared to females with MIS-C and facilitate a deeper understanding of this disease.
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Affiliation(s)
- Anuradha Rajamanickam
- National Institutes of Health-National Institute for Research in Tuberculosis - International Center for Excellence in Research, Chennai, India.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Syed Hissar
- National Institute for Research in Tuberculosis, Chennai, India
| | | | - Subash Babu
- National Institutes of Health-National Institute for Research in Tuberculosis - International Center for Excellence in Research, Chennai, India
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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23
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Laffer B, Lenders M, Ehlers-Jeske E, Heidenreich K, Brand E, Köhl J. Complement activation and cellular inflammation in Fabry disease patients despite enzyme replacement therapy. Front Immunol 2024; 15:1307558. [PMID: 38304433 PMCID: PMC10830671 DOI: 10.3389/fimmu.2024.1307558] [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: 10/04/2023] [Accepted: 01/03/2024] [Indexed: 02/03/2024] Open
Abstract
Defective α-galactosidase A (AGAL/GLA) due to missense or nonsense mutations in the GLA gene results in accumulation of the glycosphingolipids globotriaosylceramide (Gb3) and its deacylated derivate globotriaosylsphingosine (lyso-Gb3) in cells and body fluids. The aberrant glycosphingolipid metabolism leads to a progressive lysosomal storage disorder, i. e. Fabry disease (FD), characterized by chronic inflammation leading to multiorgan damage. Enzyme replacement therapy (ERT) with agalsidase-alfa or -beta is one of the main treatment options facilitating cellular Gb3 clearance. Proteome studies have shown changes in complement proteins during ERT. However, the direct activation of the complement system during FD has not been explored. Here, we demonstrate strong activation of the complement system in 17 classical male FD patients with either missense or nonsense mutations before and after ERT as evidenced by high C3a and C5a serum levels. In contrast to the strong reduction of lyso-Gb3 under ERT, C3a and C5a markedly increased in FD patients with nonsense mutations, most of whom developed anti-drug antibodies (ADA), whereas FD patients with missense mutations, which were ADA-negative, showed heterogenous C3a and C5a serum levels under treatment. In addition to the complement activation, we found increased IL-6, IL-10 and TGF-ß1 serum levels in FD patients. This increase was most prominent in patients with missense mutations under ERT, most of whom developed mild nephropathy with decreased estimated glomerular filtration rate. Together, our findings demonstrate strong complement activation in FD independent of ERT therapy, especially in males with nonsense mutations and the development of ADAs. In addition, our data suggest kidney cell-associated production of cytokines, which have a strong potential to drive renal damage. Thus, chronic inflammation as a driver of organ damage in FD seems to proceed despite ERT and may prove useful as a target to cope with progressive organ damage.
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Affiliation(s)
- Björn Laffer
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Malte Lenders
- Department of Internal Medicine D, University Hospital Münster, Münster, Germany
| | - Elvira Ehlers-Jeske
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | | | - Eva Brand
- Department of Internal Medicine D, University Hospital Münster, Münster, Germany
| | - Jörg Köhl
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
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24
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Mellors J, Carroll M. Direct enhancement of viral neutralising antibody potency by the complement system: a largely forgotten phenomenon. Cell Mol Life Sci 2024; 81:22. [PMID: 38200235 PMCID: PMC10781860 DOI: 10.1007/s00018-023-05074-2] [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: 09/28/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 01/12/2024]
Abstract
Neutralisation assays are commonly used to assess vaccine-induced and naturally acquired immune responses; identify correlates of protection; and inform important decisions on the screening, development, and use of therapeutic antibodies. Neutralisation assays are useful tools that provide the gold standard for measuring the potency of neutralising antibodies, but they are not without limitations. Common methods such as the heat-inactivation of plasma samples prior to neutralisation assays, or the use of anticoagulants such as EDTA for blood collection, can inactivate the complement system. Even in non-heat-inactivated samples, the levels of complement activity can vary between samples. This can significantly impact the conclusions regarding neutralising antibody potency. Restoration of the complement system in these samples can be achieved using an exogenous source of plasma with preserved complement activity or with purified complement proteins. This can significantly enhance the neutralisation titres for some antibodies depending on characteristics such as antibody isotype and the epitope they bind, enable neutralisation with otherwise non-neutralising antibodies, and demonstrate a better relationship between in vitro and in vivo findings. In this review, we discuss the evidence for complement-mediated enhancement of antibody neutralisation against a range of viruses, explore the potential mechanisms which underpin this enhancement, highlight current gaps in the literature, and provide a brief summary of considerations for adopting this approach in future research applications.
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Affiliation(s)
- Jack Mellors
- Centre for Human Genetics and the Pandemic Sciences Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
| | - Miles Carroll
- Centre for Human Genetics and the Pandemic Sciences Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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25
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Faria B, Gaya da Costa M, Meter-Arkema AH, Berger SP, Lima C, Pêgo C, van den Born J, Franssen CF, Daha MR, Pestana M, Seelen MA, Poppelaars F. Systemic and local complement activation in peritoneal dialysis patients via conceivably distinct pathways. Perit Dial Int 2024; 44:37-47. [PMID: 37794761 DOI: 10.1177/08968608231198984] [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] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Despite several advantages compared to haemodialysis (HD), peritoneal dialysis (PD) remains an underused dialysis technique due to its high technique failure rate related to membrane fibrosis and peritonitis events. Previous work has suggested a harmful role for the complement system in these processes, highlighting the need for a more comprehensive examination in PD. METHODS Plasma levels of C1q, mannose-binding lectin (MBL), Properdin, Factor D, C3d/C3-ratio and soluble membrane attack complex (sC5b-9) were determined in PD patients (n = 55), HD patients (n = 41), non-dialysis chronic kidney disease (CKD) patients (n = 15) and healthy controls (n = 14). Additionally, C1q, MBL, Properdin, Factor D and sC5b-9 levels were assessed in the peritoneal dialysis fluid (PDF). In a subgroup, interleukin-6, matrix metalloproteinase-2 (MMP-2), myeloperoxidase (MPO) and elastase were measured in the PDF. RESULTS PD patients had significantly higher systemic levels of sC5b-9 compared to healthy controls, CKD and HD patients (p < 0.001). Plasma levels of C1q and C3d/C3-ratios were significantly associated with systemic sC5b-9 levels (p < 0.001). Locally, sC5b-9 was detected in the PDF of all PD patients, and levels were approximately 33% of those in matched plasma, but they did not correlate. In the PDF, only Properdin levels remained significantly associated with PDF sC5b-9 levels in multivariate analysis (p < 0.001). Additionally, PDF levels of sC5b-9 positively correlated with elastase, MPO and MMP-2 levels in the PDF (p < 0.01). CONCLUSIONS Our data reveal both systemic and local complement activation in PD patients. Furthermore, these two processes seem independent considering the involvement of different pathways and the lack of correlation.
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Affiliation(s)
- Bernardo Faria
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
- Nephrology and Infectious Disease R&D Group, INEB, Institute of Investigation and Innovation in Health (i3S), University of Porto, Portugal
- Department of Medicine, Faculty of Medicine, University of Porto, Portugal
| | - Mariana Gaya da Costa
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
- Department of Anesthesiology, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Anita H Meter-Arkema
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Stefan P Berger
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Carla Lima
- Division of Nephrology, Hospital São Teotônio, Viseu, Portugal
| | - Catia Pêgo
- Division of Nephrology, Hospital São Teotônio, Viseu, Portugal
| | - Jacob van den Born
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Casper Fm Franssen
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Mohamed R Daha
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
- Department of Nephrology, Leiden University Medical Center, University of Leiden, The Netherlands
| | - Manuel Pestana
- Nephrology and Infectious Disease R&D Group, INEB, Institute of Investigation and Innovation in Health (i3S), University of Porto, Portugal
- Department of Medicine, Faculty of Medicine, University of Porto, Portugal
| | - Marc A Seelen
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Felix Poppelaars
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
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Reeve J. De-stabilizing innate immunity in COVID-19: effects of its own positive feedback and erratic viraemia on the alternative pathway of complement. ROYAL SOCIETY OPEN SCIENCE 2024; 11:221597. [PMID: 38234438 PMCID: PMC10791537 DOI: 10.1098/rsos.221597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 12/08/2023] [Indexed: 01/19/2024]
Abstract
Complement provides powerful, fast responses in the human circulation to SARS-CoV-2 (COVID-19 virus) infection of the lower respiratory tract. COVID-19 effects were investigated in a revised human in silico Mass Action model of complement's alternative pathway (AP) responses. Bursts of newly circulating virions increased the fission of Complement protein C3 into C3a and C3b via stimulation of the lectin pathway or inhibited complement factor H. Viral reproduction sub-models incorporated smoothly exponential or step-wise exponential growth. Starting complement protein concentrations were drawn randomly from published normal male or female ranges and each infection model run for 10 days. C3 and factor B (FB) syntheses driven by Lectin Pathway stimulation led to declining plasma C3 and increasing FB concentrations. The C3-convertase concentration, a driver of viral elimination, could match viral growth over three orders of magnitude but near-complete exhaustion of circulating C3 was more prevalent with step-wise than with 'smooth' increases in viral stimulation. C3 exhaustion could be prolonged. Type 2 Diabetes and hypertension led to greatly increased peak C3-convertase concentrations, as did short-term variability of COVID-19 viraemia, pulmonary capillary clotting and secondary acidosis. Positive feedback in the AP greatly extends its response range at the expense of stability.
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Affiliation(s)
- Jonathan Reeve
- Senior Research Fellow, Nuffield Department of Orthopaedics, Rheumatological and Musculoskeletal Sciences, University of Oxford Botnar Research Centre, Windmill Road, Oxford OX3 7LD, UK
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27
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Barber AJ, del Genio CL, Swain AB, Pizzi EM, Watson SC, Tapiavala VN, Zanazzi GJ, Gaur AB. Age, Sex and Alzheimer's disease: A longitudinal study of 3xTg-AD mice reveals sex-specific disease trajectories and inflammatory responses mirrored in postmortem brains from Alzheimer's patients. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.23.573209. [PMID: 38187539 PMCID: PMC10769453 DOI: 10.1101/2023.12.23.573209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Background Aging and sex are major risk factors for developing late-onset Alzheimer's disease. Compared to men, women are not only nearly twice as likely to develop Alzheimer's, but they also experience worse neuropathological burden and cognitive decline despite living longer with the disease. It remains unclear how and when sex differences in biological aging emerge and contribute to Alzheimer's disease pathogenesis. We hypothesized that these differences lead to distinct pathological and molecular Alzheimer's disease signatures in males and females, which could be harnessed for therapeutic and biomarker development. Methods We aged male and female, 3xTg-AD and B6129 (WT) control mice across their respective lifespans while longitudinally collecting brain, liver, spleen, and plasma samples (n=3-8 mice per sex, strain, and age group). We performed histological analyses on all tissues and assessed neuropathological hallmarks of Alzheimer's disease, markers of hepatic inflammation, as well as splenic mass and morphology. Additionally, we measured concentrations of cytokines, chemokines, and growth factors in the plasma. We conducted RNA sequencing (RNA-Seq) analysis on bulk brain tissue and examined differentially expressed genes (DEGs) between 3xTg-AD and WT samples and across ages in each sex. We also examined DEGs between clinical Alzheimer's and control parahippocampal gyrus brain tissue samples from the Mount Sinai Brain Bank (MSBB) study in each sex. Results 3xTg-AD females significantly outlived 3xTg-AD males and exhibited progressive Alzheimer's neuropathology, while 3xTg-AD males demonstrated progressive hepatic inflammation, splenomegaly, circulating inflammatory proteins, and next to no Alzheimer's neuropathological hallmarks. Instead, 3xTg-AD males experienced an accelerated upregulation of immune-related gene expression in the brain relative to females, further suggesting distinct inflammatory disease trajectories between the sexes. Clinical investigations revealed that 3xTg-AD brain aging phenotypes are not an artifact of the animal model, and individuals with Alzheimer's disease develop similar sex-specific alterations in canonical pathways related to neuronal signaling and immune function. Interestingly, we observed greater upregulation of complement-related gene expression, and lipopolysaccharide (LPS) was predicted as the top upstream regulator of DEGs in diseased males of both species. Conclusions Our data demonstrate that chronic inflammation and complement activation are associated with increased mortality, revealing that age-related changes in immune response act as a primary driver of sex differences in Alzheimer's disease trajectories. We propose a model of disease pathogenesis in 3xTg-AD males in which aging and transgene-driven disease progression trigger an inflammatory response, mimicking the effects of LPS stimulation despite the absence of infection.
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Affiliation(s)
- Alicia J. Barber
- Department of Neurology, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
- Integrative Neuroscience at Dartmouth, Dartmouth College, Hanover, NH, USA
| | - Carmen L. del Genio
- Department of Neurology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | | | - Elizabeth M. Pizzi
- The Jackson Laboratory, Bar Harbor, ME, USA
- Neuroscience Program, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, USA
| | | | | | - George J. Zanazzi
- Department of Pathology, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Arti B. Gaur
- Department of Neurology, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
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28
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Cassard A, Kounde C, Bouillet L, Goulenok T, Ribes D, Mesbah R, Langlois V, Delas A, Fortenfant F, Humbert S, Lebas C, Belliere J, Kerschen P, Chauveau D, Colombat M, Faguer S. Are serum C3 levels or kidney C3 deposits useful markers for predicting outcomes in patients with ANCA-associated vasculitis? J Transl Autoimmun 2023; 7:100217. [PMID: 37877133 PMCID: PMC10590832 DOI: 10.1016/j.jtauto.2023.100217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/03/2023] [Accepted: 10/06/2023] [Indexed: 10/26/2023] Open
Abstract
Introduction Complement activation emerged as a key actor of anti-neutrophil cytoplasmic antibodies-associated vasculitis (AAV). Whether serum levels of C3 (sC3) or C3 kidney deposition may help to refine the prognosis of AAV remains elusive. Methods Retrospective multicentric study that included 154 patients with a first flare of AAV and sC3 (n = 143) or C3 kidney staining (n = 95) available at diagnosis. Clinical presentations, kidney pathology, and survival of patients with normal or low sC3 were compared using univariate analyses, Kaplan-Maier curves with log-rank comparison, or multivariate Cox' model, as appropriate. Results 20 patients (14 %) had low sC3. sC3 (as bivariate low/normal or as a continuous variable) was associated with 5-year mortality but not with kidney survival. C3 kidney deposition (C3+) was identified in 23 patients who were characterized by more frequent chronic hypertension and lower eGFR at presentation (p = 0.04). C3+ correlated with IgG, IgM, C1q deposition (p = 0.07, p < 0.0001 and p = 0.003, respectively). Chronicity and activity scores were similar in C3+ and C3- patients. Among C3+ patients, those with C3 deposition ≥2+ had lower eGFR at presentation (p = 0.006) and were more frequently classified as sclerotic using the Berden classification (p = 0.04) and as 'high risk' using the Brix score (p = 0.03). However, eGFR improvement following induction regimen was similar between C3+ and C3- patients, and kidney survival at 5 years was similar. Conclusions Correlation of sC3 with mortality confirms mechanistic links between complement pathways and AAV, but the lack of clear predictive sC3 cut-off and the similar kidney outcome irrespective of C3 deposition precludes their use as biomarkers of AAV outcomes and response to treatment.
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Affiliation(s)
- Alexis Cassard
- Département de Néphrologie et Transplantation d'organes, Centre de référence des Maladies rénales rares, Groupe Français d’études des Vascularites, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Clément Kounde
- Département de Néphrologie et Transplantation d'organes, Centre de référence des Maladies rénales rares, Groupe Français d’études des Vascularites, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Laurence Bouillet
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, CHU Grenoble Alpes, TIMC, 38000, Grenoble, France
| | - Tiphaine Goulenok
- Service de Médecine Interne, Hôpital Bichat, Assistance Publique - Hôpitaux de Paris, France
| | - David Ribes
- Département de Néphrologie et Transplantation d'organes, Centre de référence des Maladies rénales rares, Groupe Français d’études des Vascularites, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Rafik Mesbah
- Service de Néphrologie, Centre Hospitalier de Boulogne-sur-Mer, Boulogne-sur-Mer, France
| | - Vincent Langlois
- Service de Médecine Interne et Maladies Infectieuses, Groupe Hospitalier du Havre, Le Havre France
| | - Audrey Delas
- Laboratoire d’Anatomo-pathologie, Institut Universitaire du Cancer de Toulouse – Oncopole, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Françoise Fortenfant
- Laboratoire d’Immunologie, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Sébastien Humbert
- Service de Médecine Interne, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | - Céline Lebas
- Service de Néphrologie et Transplantation rénale, Centre Hospitalier Régional Universitaire de Lille, Lille, France
| | - Julie Belliere
- Département de Néphrologie et Transplantation d'organes, Centre de référence des Maladies rénales rares, Groupe Français d’études des Vascularites, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
- Laboratoire d’Anatomo-pathologie, Institut Universitaire du Cancer de Toulouse – Oncopole, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
- Institut National de La Santé et de La Recherche Médicale, Institut des Maladies Métaboliques et Cardiovasculaires (UMR 1297), Toulouse, France
| | | | - Dominique Chauveau
- Département de Néphrologie et Transplantation d'organes, Centre de référence des Maladies rénales rares, Groupe Français d’études des Vascularites, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
- Laboratoire d’Anatomo-pathologie, Institut Universitaire du Cancer de Toulouse – Oncopole, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
- Institut National de La Santé et de La Recherche Médicale, Institut des Maladies Métaboliques et Cardiovasculaires (UMR 1297), Toulouse, France
| | - Magali Colombat
- Laboratoire d’Anatomo-pathologie, Institut Universitaire du Cancer de Toulouse – Oncopole, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
- Faculté de Médecine, Université Toulouse-3, Toulouse, France
| | - Stanislas Faguer
- Département de Néphrologie et Transplantation d'organes, Centre de référence des Maladies rénales rares, Groupe Français d’études des Vascularites, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
- Laboratoire d’Anatomo-pathologie, Institut Universitaire du Cancer de Toulouse – Oncopole, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
- Institut National de La Santé et de La Recherche Médicale, Institut des Maladies Métaboliques et Cardiovasculaires (UMR 1297), Toulouse, France
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29
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Hosseinzadeh S, Afshari S, Molaei S, Rezaei N, Dadkhah M. The role of genetics and gender specific differences in neurodegenerative disorders: Insights from molecular and immune landscape. J Neuroimmunol 2023; 384:578206. [PMID: 37813041 DOI: 10.1016/j.jneuroim.2023.578206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/09/2023] [Accepted: 09/23/2023] [Indexed: 10/11/2023]
Abstract
Neurodegenerative disorders (NDDs) are the most common neurological disorders with high prevalence and have significant socioeconomic implications. Understanding the underlying cellular and molecular mechanisms associated with the immune system can be effective in disease etiology, leading to more effective therapeutic approaches for both females and males. The central nervous system (CNS) actively participates in immune responses, both within and outside the CNS. Immune system activation is a common feature in NDDs. Gender-specific factors play a significant role in the prevalence, progression, and manifestation of NDDs. Neuroinflammation, in both inflammatory neurological and neurodegenerative conditions, is defined by the triggering of microglia and astrocyte cell activation. This results in the secretion of pro-inflammatory cytokines and chemokines. Numerous studies have documented the role of neuroinflammation in neurological diseases, highlighting the involvement of immune signaling pathways in disease development. Converging evidence support immune system involvement during neurodegeneration in NDDs. In this review, we summarize emerging evidence that reveals gender-dependent differences in immune responses related to NDDs. Also, we highlight sex differences in immune responses and discuss how these sex-specific influences can increase the risk of NDDs. Understanding the role of gender-specific factors can aid in developing targeted therapeutic strategies and improving patient outcomes. Ultimately, the better understanding of these mechanisms contributed to sex-dependent immune response in NDDs, can be critically usful in targeting of immune signaling cascades in such disorders. In this regard, sex-related immune responses in NDDs may be promising and effective targets in therapeutic strategies.
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Affiliation(s)
- Shahnaz Hosseinzadeh
- Department of Microbiology & Immunology, School of Medicine, Ardabil University of Medical Sciences, Iran; Cancer Immunology and Immunotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Salva Afshari
- Students Research Committee, Pharmacy School, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Soheila Molaei
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran 1419733151, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education Research Network (USERN), Tehran, Iran
| | - Masoomeh Dadkhah
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
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30
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Wilton DK, Mastro K, Heller MD, Gergits FW, Willing CR, Fahey JB, Frouin A, Daggett A, Gu X, Kim YA, Faull RLM, Jayadev S, Yednock T, Yang XW, Stevens B. Microglia and complement mediate early corticostriatal synapse loss and cognitive dysfunction in Huntington's disease. Nat Med 2023; 29:2866-2884. [PMID: 37814059 PMCID: PMC10667107 DOI: 10.1038/s41591-023-02566-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 08/24/2023] [Indexed: 10/11/2023]
Abstract
Huntington's disease (HD) is a devastating monogenic neurodegenerative disease characterized by early, selective pathology in the basal ganglia despite the ubiquitous expression of mutant huntingtin. The molecular mechanisms underlying this region-specific neuronal degeneration and how these relate to the development of early cognitive phenotypes are poorly understood. Here we show that there is selective loss of synaptic connections between the cortex and striatum in postmortem tissue from patients with HD that is associated with the increased activation and localization of complement proteins, innate immune molecules, to these synaptic elements. We also found that levels of these secreted innate immune molecules are elevated in the cerebrospinal fluid of premanifest HD patients and correlate with established measures of disease burden.In preclinical genetic models of HD, we show that complement proteins mediate the selective elimination of corticostriatal synapses at an early stage in disease pathogenesis, marking them for removal by microglia, the brain's resident macrophage population. This process requires mutant huntingtin to be expressed in both cortical and striatal neurons. Inhibition of this complement-dependent elimination mechanism through administration of a therapeutically relevant C1q function-blocking antibody or genetic ablation of a complement receptor on microglia prevented synapse loss, increased excitatory input to the striatum and rescued the early development of visual discrimination learning and cognitive flexibility deficits in these models. Together, our findings implicate microglia and the complement cascade in the selective, early degeneration of corticostriatal synapses and the development of cognitive deficits in presymptomatic HD; they also provide new preclinical data to support complement as a therapeutic target for early intervention.
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Affiliation(s)
- Daniel K Wilton
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US.
| | - Kevin Mastro
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US
| | - Molly D Heller
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US
| | - Frederick W Gergits
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US
| | - Carly Rose Willing
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US
| | - Jaclyn B Fahey
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US
| | - Arnaud Frouin
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US
| | - Anthony Daggett
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California, Los Angeles, CA, USA
| | - Xiaofeng Gu
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California, Los Angeles, CA, USA
| | - Yejin A Kim
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US
| | - Richard L M Faull
- Department of Anatomy with Radiology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Suman Jayadev
- Department of Neurology, University of Washington, Seattle, WA, USA
- Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Ted Yednock
- Annexon Biosciences, South San Francisco, CA, USA
| | - X William Yang
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at University of California, Los Angeles, CA, USA
| | - Beth Stevens
- F. M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, US.
- Stanley Center, Broad Institute, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
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31
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Kelkar NS, Goldberg BS, Dufloo J, Bruel T, Schwartz O, Hessell AJ, Ackerman ME. Sex and species associated differences in Complement-mediated immunity in Humans and Rhesus macaques. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.23.563614. [PMID: 37961263 PMCID: PMC10634758 DOI: 10.1101/2023.10.23.563614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
The complement system can be viewed as a 'moderator' of innate immunity, 'instructor' of humoral immunity, and 'regulator' of adaptive immunity. While sex and aging are known to affect humoral and cellular immune systems, their impact on the complement pathway in humans and rhesus macaques, a commonly used non-human primate model system, have not been well-studied. To address this knowledge gap, we analyzed serum samples from 90 humans and 75 rhesus macaques for the abundance and activity of the complement system components. While sequences of cascade proteins were highly conserved, dramatically different levels were observed between species. Whereas the low levels detected in rhesus samples raised questions about the suitability of the test, differences in levels of complement proteins were observed in male and female humans. Levels of total and antibody-dependent deposition of C1q and C3b on a glycosylated antigen differed between human and rhesus, suggesting differential recognition of glycans. Functional differences in complement-mediated lysis of antibody-sensitized cells were observed in multiple assays and showed that human females frequently exhibited higher lytic activity than human males or rhesus macaques, which typically did not exhibit such sexual dimorphism. Other differences between species and sexes were observed in more narrow contexts-for only certain antibodies, antigens, or assays. Collectively, these results expand our knowledge of sexual dimorphism in the complement system in humans, identifying differences that appear to be absent from rhesus macaques.
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Affiliation(s)
- Natasha S. Kelkar
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Dartmouth College, Hanover, NH, USA
| | - Benjamin S. Goldberg
- Thayer School of Engineering, Dartmouth College, Hanover, NH, USA
- Present Address: Metaphore Biotechnologies Inc., Cambridge, MA, USA
| | - Jérémy Dufloo
- Institut Pasteur, Université de Paris, CNRS UMR3569, Virus and Immunity Unit, 75015 Paris, France
- Present Address: Institute for Integrative Systems Biology (I2SysBio), Universitat da Valencia-CSIC, 46980 Valencia, Spain
| | - Timothée Bruel
- Institut Pasteur, Université de Paris, CNRS UMR3569, Virus and Immunity Unit, 75015 Paris, France
- Vaccine Research Institute, 9400 Créteil, France
| | - Olivier Schwartz
- Institut Pasteur, Université de Paris, CNRS UMR3569, Virus and Immunity Unit, 75015 Paris, France
- Vaccine Research Institute, 9400 Créteil, France
| | - Ann J. Hessell
- Division of Pathobiology and Immunology, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - Margaret E. Ackerman
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Dartmouth College, Hanover, NH, USA
- Thayer School of Engineering, Dartmouth College, Hanover, NH, USA
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Cropley VL, Kittel M, Heurich M, Föcking M, Leweke FM, Pantelis C. Complement proteins are elevated in blood serum but not CSF in clinical high-risk and antipsychotic-naïve first-episode psychosis. Brain Behav Immun 2023; 113:136-144. [PMID: 37437819 DOI: 10.1016/j.bbi.2023.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 06/29/2023] [Accepted: 07/05/2023] [Indexed: 07/14/2023] Open
Abstract
Alterations in the complement system have been reported in some people with psychotic disorder, including in pre-psychotic individuals, suggesting that complement pathway dysregulation may be a feature of the early psychosis phenotype. Measurement of complement protein expression in psychosis has been largely restricted to the blood from patients with established illness who were taking antipsychotic medication. The present study examined a range of complement proteins in blood and cerebrospinal fluid (CSF) derived from individuals at clinical high-risk for psychosis (CHR), antipsychotic-naïve first-episode psychosis (FEP) and healthy controls. A panel of complement proteins (C1q, C3, C3b/iC3b, C4, factor B and factor H) were quantified in serum and matched CSF in 72 participants [n = 23 individuals at CHR, n = 24 antipsychotic-naïve FEP, n = 25 healthy controls] using a multiplex immunoassay. Analysis of covariance was used to assess between-group differences in complement protein levels in serum and CSF. Pearson's correlation was used to assess the relationship between serum and CSF proteins, and between complement proteins and symptom severity. In serum, all proteins, except for C3, were significantly higher in FEP and CHR. While a trend was observed, protein levels in CSF did not statistically differ between groups and appeared to be impacted by BMI and sample storage time. Across the whole sample, serum and CSF protein levels were not correlated. In FEP, higher levels of serum classical and alternative grouped pathway components were correlated with symptom severity. Our exploratory study provides evidence for increased activity of the peripheral complement system in the psychosis spectrum, with such elevations varying with clinical severity. Further study of complement in CSF is warranted. Longitudinal investigations are required to elucidate whether complement proteins change peripherally and/or centrally with progression of psychotic illness.
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Affiliation(s)
- V L Cropley
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & NorthWestern Mental Health, Melbourne, Australia.
| | - M Kittel
- Institute for Clinical Chemistry, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - M Heurich
- School of Pharmacy and Pharmaceutical Sciences, College of Biomedical and Life Sciences, Cardiff University, United Kingdom
| | - M Föcking
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - F M Leweke
- Brain and Mind Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia; Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - C Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & NorthWestern Mental Health, Melbourne, Australia; Florey Institute of Neuroscience and Mental Health, Parkville, Vic, Australia
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Patel B, Eskander MA, Fang-Mei Chang P, Chapa B, Ruparel SB, Lai Z, Chen Y, Akopian A, Ruparel NB. Understanding painful versus non-painful dental pain in female and male patients: A transcriptomic analysis of human biopsies. PLoS One 2023; 18:e0291724. [PMID: 37733728 PMCID: PMC10513205 DOI: 10.1371/journal.pone.0291724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023] Open
Abstract
Dental pain from apical periodontitis is an infection induced-orofacial pain condition that presents with diversity in pain phenotypes among patients. While 60% of patients with a full-blown disease present with the hallmark symptom of mechanical allodynia, nearly 40% of patients experience no pain. Furthermore, a sexual dichotomy exists, with females exhibiting lower mechanical thresholds under basal and diseased states. Finally, the prevalence of post-treatment pain refractory to commonly used analgesics ranges from 7-19% (∼2 million patients), which warrants a thorough investigation of the cellular changes occurring in different patient cohorts. We, therefore, conducted a transcriptomic assessment of periapical biopsies (peripheral diseased tissue) from patients with persistent apical periodontitis. Surgical biopsies from symptomatic male (SM), asymptomatic male (AM), symptomatic female (SF), and asymptomatic female (AF) patients were collected and processed for bulk RNA sequencing. Using strict selection criteria, our study found several unique differentially regulated genes (DEGs) between symptomatic and asymptomatic patients, as well as novel candidate genes between sexes within the same pain group. Specifically, we found the role of cells of the innate and adaptive immune system in mediating nociception in symptomatic patients and the role of genes involved in tissue homeostasis in potentially inhibiting nociception in asymptomatic patients. Furthermore, sex-related differences appear to be tightly regulated by macrophage activity, its secretome, and/or migration. Collectively, we present, for the first time, a comprehensive assessment of peripherally diseased human tissue after a microbial insult and shed important insights into the regulation of the trigeminal system in female and male patients.
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Affiliation(s)
- Biraj Patel
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Michael A. Eskander
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Phoebe Fang-Mei Chang
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Brett Chapa
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Shivani B. Ruparel
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Zhao Lai
- Greehey Children’s Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Yidong Chen
- Greehey Children’s Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
- Department of Population Health Sciences, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Armen Akopian
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Nikita B. Ruparel
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
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Guga S, Wang Y, Graham DC, Vyse TJ. A review of genetic risk in systemic lupus erythematosus. Expert Rev Clin Immunol 2023; 19:1247-1258. [PMID: 37496418 DOI: 10.1080/1744666x.2023.2240959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 05/10/2023] [Indexed: 07/28/2023]
Abstract
INTRODUCTION Systemic Lupus Erythematosus (SLE) is a complex multisystem autoimmune disease with a wide range of signs and symptoms in affected individuals. The utilization of genome-wide association study (GWAS) technology has led to an explosion in the number of genetic risk factors mapped for autoimmune diseases, including SLE. AREAS COVERED In this review, we summarize the more recent genetic risk loci mapped in SLE, which bring the total number of loci mapped to approximately 200. We review prioritization analyses of the associated variants and experimental validation of the putative causal variants. This includes the implementation of new bioinformatic techniques to align genomic and functional data and the use of transcriptomics with single-cell RNA-sequencing, CRISPR genome editing, and Massive Parallel Reporter Assays to analyze non-coding regulatory genetics. EXPERT OPINION Despite progress in identifying more genetic risk loci and variant-gene pairs for SLE, understanding its pathogenesis and applying findings clinically remains challenging. The polygenic risk score (PRS) has been used as an application of SLE genetics, but with limited performance in non-EUR populations. In the next few years, advancements in proteomics, post-translational modification estimation, and whole-genome sequencing will enhance disease understanding.
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Affiliation(s)
- Suri Guga
- Department of Medical & Molecular Genetics, King's College London, London, UK
| | - Yuxuan Wang
- Department of Medical & Molecular Genetics, King's College London, London, UK
| | | | - Timothy J Vyse
- Department of Medical & Molecular Genetics, King's College London, London, UK
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Wen L, Yang X, Wu Z, Fu S, Zhan Y, Chen Z, Bi D, Shen Y. The complement inhibitor CD59 is required for GABAergic synaptic transmission in the dentate gyrus. Cell Rep 2023; 42:112349. [PMID: 37027303 DOI: 10.1016/j.celrep.2023.112349] [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: 05/05/2022] [Revised: 01/31/2023] [Accepted: 03/21/2023] [Indexed: 04/08/2023] Open
Abstract
Complement-dependent microglia pruning of excitatory synapses has been widely reported in physiological and pathological conditions, with few reports concerning pruning of inhibitory synapses or direct regulation of synaptic transmission by complement components. Here, we report that loss of CD59, an important endogenous inhibitor of the complement system, leads to compromised spatial memory performance. Furthermore, CD59 deficiency impairs GABAergic synaptic transmission in the hippocampal dentate gyrus (DG). This depends on regulation of GABA release triggered by Ca2+ influx through voltage-gated calcium channels (VGCCs) rather than inhibitory synaptic pruning by microglia. Notably, CD59 colocalizes with inhibitory pre-synaptic terminals and regulates SNARE complex assembly. Together, these results demonstrate that the complement regulator CD59 plays an important role in normal hippocampal function.
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Affiliation(s)
- Lang Wen
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Xiaoli Yang
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Zujun Wu
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Shumei Fu
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Yaxi Zhan
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Zuolong Chen
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215000, China
| | - Danlei Bi
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; Anhui Province Key Laboratory of Biomedical Aging Research, University of Science and Technology of China, Hefei 230026, China; Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei 230026, China; CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230026, China; Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Yong Shen
- Department of Neurology and Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Neurodegenerative Disease Research Center, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; Anhui Province Key Laboratory of Biomedical Aging Research, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, University of Science and Technology of China, Hefei 230026, China; Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China.
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Olivieri F, Marchegiani F, Matacchione G, Giuliani A, Ramini D, Fazioli F, Sabbatinelli J, Bonafè M. Sex/gender-related differences in inflammaging. Mech Ageing Dev 2023; 211:111792. [PMID: 36806605 DOI: 10.1016/j.mad.2023.111792] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/12/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023]
Abstract
Geroscience puts mechanisms of aging as a driver of the most common age-related diseases and dysfunctions. Under this perspective, addressing the basic mechanisms of aging will produce a better understanding than addressing each disease pathophysiology individually. Worldwide, despite greater functional impairment, life expectancy is higher in women than in men. Gender differences in the prevalence of multimorbidity lead mandatory to the understanding of the mechanisms underlying gender-related differences in multimorbidity patterns and disability-free life expectancy. Extensive literature suggested that inflammaging is at the crossroad of aging and age-related diseases. In this review, we highlight the main evidence on sex/gender differences in the mechanisms that foster inflammaging, i.e. the age-dependent triggering of innate immunity, modifications of adaptive immunity, and accrual of senescent cells, underpinning some biomarkers of inflammaging that show sex-related differences. In the framework of the "gender medicine perspective", we will also discuss how sex/gender differences in inflammaging can affect sex differences in COVID-19 severe outcomes.
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Affiliation(s)
- Fabiola Olivieri
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy; Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
| | | | - Giulia Matacchione
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Angelica Giuliani
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Deborah Ramini
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
| | - Francesca Fazioli
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - Jacopo Sabbatinelli
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy; Laboratory Medicine Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy.
| | - Massimiliano Bonafè
- Department of Experimental, Diagnostic, and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
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Pedersen ML, Pedersen DV, Winkler MBL, Olesen HG, Søgaard OS, Østergaard L, Laursen NS, Rahimic AHF, Tolstrup M. Nanobody-mediated complement activation to kill HIV-infected cells. EMBO Mol Med 2023; 15:e16422. [PMID: 36799046 PMCID: PMC10086584 DOI: 10.15252/emmm.202216422] [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: 06/08/2022] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/18/2023] Open
Abstract
The complement system which is part of the innate immune response against invading pathogens represents a powerful mechanism for killing of infected cells. Utilizing direct complement recruitment for complement-mediated elimination of HIV-1-infected cells is underexplored. We developed a novel therapeutic modality to direct complement activity to the surface of HIV-1-infected cells. This bispecific complement engager (BiCE) is comprised of a nanobody recruiting the complement-initiating protein C1q, and single-chain variable fragments of broadly neutralizing antibodies (bNAbs) targeting the HIV-1 envelope (Env) protein. Here, we show that two anti-HIV BiCEs targeting the V3 loop and the CD4 binding site, respectively, increase C3 deposition and mediate complement-dependent cytotoxicity (CDC) of HIV-1 Env-expressing Raji cells. Furthermore, anti-HIV BiCEs trigger complement activation on primary CD4 T cells infected with laboratory-adapted HIV-1 strain and facilitates elimination of HIV-1-infected cells over time. In summary, we present a novel approach to direct complement deposition to the surface of HIV-1-infected cells leading to complement-mediated killing of these cells.
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Affiliation(s)
| | | | | | - Heidi Gytz Olesen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Ole Schmeltz Søgaard
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Lars Østergaard
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Martin Tolstrup
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
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de Nooijer AH, Kotsaki A, Kranidioti E, Kox M, Pickkers P, Toonen EJM, Giamarellos-Bourboulis EJ, Netea MG. Complement activation in severely ill patients with sepsis: no relationship with inflammation and disease severity. Crit Care 2023; 27:63. [PMID: 36797757 PMCID: PMC9933299 DOI: 10.1186/s13054-023-04344-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 02/01/2023] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Sepsis is characterized by a dysregulated immune response to infection. The complement system plays an important role in the host defence to pathogens. However, exaggerated complement activation might contribute to a hyperinflammatory state. The interplay between complement activation and inflammation in relationship with adverse outcomes in sepsis patients is unclear. METHODS Secondary analysis of complement factors in a prospective study in 209 hospitalized sepsis patients, of whom the majority presented with shock. Concentrations of complement factors C3, C3a, C3c, C5, C5a, and soluble terminal complement complex were assessed in ethylenediaminetetraacetic acid plasma samples collected within 24 h after sepsis diagnosis using enzyme-linked immunosorbent assays. RESULTS The concentration of complement factors in plasma of severely ill sepsis patients indicated profound activation of the complement system (all P < 0.01 compared to healthy controls). Spearman rank correlation tests indicated consistent relationships between the different complement factors measured, but no significant correlations were observed between the complement factors and other inflammatory biomarkers such as leukocyte numbers, C-reactive protein and ferritin concentrations, or HLA-DR expression on monocytes. The concentration of complement factors was not associated with Sequential Organ Failure Assessment score, the incidence of septic shock, and mortality rates (all P > 0.05) in this cohort of patients with high disease severity. CONCLUSIONS Once an infection progresses to severe sepsis or septic shock, the complement pathway is already profoundly activated and is no longer related to a dysregulated inflammatory response, nor to clinical outcome. This implies that in this patient category with severe disease, the complement system is activated to such an extent that it no longer has predictive value for clinical outcome.
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Affiliation(s)
- Aline H. de Nooijer
- grid.10417.330000 0004 0444 9382Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands ,grid.10417.330000 0004 0444 9382Department of Intensive Care Medicine, Radboud University Medical Center, Nijmegen, The Netherlands ,grid.10417.330000 0004 0444 9382Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Antigone Kotsaki
- grid.5216.00000 0001 2155 0800Fourth Department of Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleftheria Kranidioti
- grid.414655.70000 0004 4670 4329Fifth Department of Internal Medicine, Evangelismos General Hospital, Athens, Greece
| | - Matthijs Kox
- grid.10417.330000 0004 0444 9382Department of Intensive Care Medicine, Radboud University Medical Center, Nijmegen, The Netherlands ,grid.10417.330000 0004 0444 9382Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Peter Pickkers
- grid.10417.330000 0004 0444 9382Department of Intensive Care Medicine, Radboud University Medical Center, Nijmegen, The Netherlands ,grid.10417.330000 0004 0444 9382Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Erik J. M. Toonen
- grid.435189.2R&D Department, Hycult Biotechnology, Uden, The Netherlands
| | | | - Mihai G. Netea
- grid.10417.330000 0004 0444 9382Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands ,grid.10417.330000 0004 0444 9382Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, Radboud University Medical Center, Nijmegen, The Netherlands ,grid.10388.320000 0001 2240 3300Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
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Ashkarran AA, Gharibi H, Grunberger JW, Saei AA, Khurana N, Mohammadpour R, Ghandehari H, Mahmoudi M. Sex-Specific Silica Nanoparticle Protein Corona Compositions Exposed to Male and Female BALB/c Mice Plasmas. ACS BIO & MED CHEM AU 2023; 3:62-73. [PMID: 36820312 PMCID: PMC9936498 DOI: 10.1021/acsbiomedchemau.2c00040] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 10/21/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022]
Abstract
As various nanoparticles (NPs) are increasingly being used in nanomedicine products for more effective and less toxic therapy and diagnosis of diseases, there is a growing need to understand their biological fate in different sexes. Herein, we report a proof-of-concept result of sex-specific protein corona compositions on the surface of silica NPs as a function of their size and porosity upon incubation with plasma proteins of female and male BALB/c mice. Our results demonstrate substantial differences between male and female protein corona profiles on the surface of silica nanoparticles. By comparing protein abundances between male and female protein coronas of mesoporous silica nanoparticles and Stöber silica nanoparticles of ∼100, 50, and 100 nm in diameter, respectively, we detected 17, 4, and 4 distinct proteins, respectively, that were found at significantly different concentrations for these constructs. These initial findings demonstrate that animal sex can influence protein corona formation on silica NPs as a function of the physicochemical properties. A more thorough consideration of the role of plasma sex would enable nanomedicine community to design and develop safer and more efficient diagnostic and therapeutic nanomedicine products for both sexes.
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Affiliation(s)
- Ali Akbar Ashkarran
- Department
of Radiology and Precision Health Program, Michigan State University, East Lansing, Michigan 48824, United States
| | - Hassan Gharibi
- Division
of Physiological Chemistry I, Department of Medical Biochemistry and
Biophysics, Karolinska Institute, SE-17 165 Stockholm, Sweden
| | - Jason W. Grunberger
- Utah
Center for Nanomedicine, University of Utah, Salt Lake City, Utah 84112, United States
| | - Amir Ata Saei
- Division
of Physiological Chemistry I, Department of Medical Biochemistry and
Biophysics, Karolinska Institute, SE-17 165 Stockholm, Sweden
| | - Nitish Khurana
- Utah
Center for Nanomedicine, University of Utah, Salt Lake City, Utah 84112, United States
| | - Raziye Mohammadpour
- Utah
Center for Nanomedicine, University of Utah, Salt Lake City, Utah 84112, United States
| | - Hamidreza Ghandehari
- Utah
Center for Nanomedicine, University of Utah, Salt Lake City, Utah 84112, United States
- Department
of Biomedical Engineering, University of
Utah, Salt Lake City, Utah 84112, United
States
| | - Morteza Mahmoudi
- Department
of Radiology and Precision Health Program, Michigan State University, East Lansing, Michigan 48824, United States
- Mary
Horrigan Connors Center for Women’s Health and Gender Biology,
Brigham and Women’s Hospital, Harvard
Medical School, Boston, Massachusetts 02115, United States
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40
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Sivaprasad S, Chandra S, Kwon J, Khalid N, Chong V. Perspectives from clinical trials: is geographic atrophy one disease? Eye (Lond) 2023; 37:402-407. [PMID: 35641821 PMCID: PMC9905504 DOI: 10.1038/s41433-022-02115-1] [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: 02/11/2022] [Revised: 04/27/2022] [Accepted: 05/13/2022] [Indexed: 11/09/2022] Open
Abstract
Geographic atrophy (GA) is currently an untreatable condition. Emerging evidence from recent clinical trials show that anti-complement therapy may be a successful treatment option. However, several trials in this therapy area have failed as well. This raises several questions. Firstly, does complement therapy work for all patients with GA? Secondly, is GA one disease? Can we assume that these failed clinical trials are due to ineffective interventions or are they due to flawed clinical trial designs, heterogeneity in GA progression rates or differences in study cohorts? In this article we try to answer these questions by providing an overview of the challenges of designing and interpreting outcomes of randomised controlled trials (RCTs) in GA. These include differing inclusion-exclusion criteria, heterogeneous progression rates of the disease, outcome choices and confounders.
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Affiliation(s)
- Sobha Sivaprasad
- National Institute of Health Research Moorfields Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust, London, UK.
- University College London, Institute of Ophthalmology, London, UK.
| | - Shruti Chandra
- National Institute of Health Research Moorfields Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust, London, UK
- University College London, Institute of Ophthalmology, London, UK
| | - Jeha Kwon
- Oxford University Hospitals NHS Trust, Oxford, UK
| | | | - Victor Chong
- University College London, Institute of Ophthalmology, London, UK
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Tampe D, Baier E, Hakroush S, Tampe B. Comparative analysis of complement C3 and C4 serum levels for outcome prediction in ANCA-associated renal vasculitis. J Nephrol 2023; 36:125-132. [PMID: 35962865 PMCID: PMC9894999 DOI: 10.1007/s40620-022-01414-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/19/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND The activation of the complement system contributes essentially to the pathogenesis of anti-neutrophil cytoplasmic antibody (ANCA)-associated renal vasculitis. We here aimed to directly compare levels of C3 and C4 for outcome prediction in ANCA-associated renal vasculitis. METHODS Serum levels of complement components C3 and C4 were directly compared in association with clinical and outcome data in a retrospective cohort of ANCA-associated renal vasculitis. RESULTS As compared to poor outcome prediction by low levels of complement C3 (p = 0.0093), low levels of complement C4 did not associate with early requirement of kidney replacement therapy (KRT) or death (p = 0.2396). In the subgroup that experienced KRT or death, low C3 levels identified 11/14 (78.6%, p = 0.0071) and C4 levels 9/14 (64.3%, p = 0.1786) cases. Interestingly, 2/14 (14.3%) patients that experienced KRT or death had isolated C4 lowering, and combining low C3 and/or C4 levels identified 13/14 (92.3%, p < 0.0001) cases in this subgroup. Non-superiority to predict poor outcome by low C3 and/or C4 as compared to C3 alone in the total cohort was attributed to 4/24 (16.7%) patients with isolated C4 lowering in the subgroup that did not experience KRT or death. CONCLUSION While low levels of complement C3 were superior in predicting poor outcome in ANCA-associated renal vasculitis, a minor fraction with poor outcome had isolated C4 lowering not captured by serum C3 measurements. Therefore, detailed knowledge of distinct complement components contributing to kidney injury could be of relevance to improve current strategies targeting the complement system in ANCA-associated renal vasculitis.
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Affiliation(s)
- Désirée Tampe
- Department of Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen, Germany
| | - Eva Baier
- Department of Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen, Germany
| | - Samy Hakroush
- Institute of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | - Björn Tampe
- Department of Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen, Germany.
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Zarantonello A, Revel M, Grunenwald A, Roumenina LT. C3-dependent effector functions of complement. Immunol Rev 2023; 313:120-138. [PMID: 36271889 PMCID: PMC10092904 DOI: 10.1111/imr.13147] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
C3 is the central effector molecule of the complement system, mediating its multiple functions through different binding sites and their corresponding receptors. We will introduce the C3 forms (native C3, C3 [H2 O], and intracellular C3), the C3 fragments C3a, C3b, iC3b, and C3dg/C3d, and the C3 expression sites. To highlight the important role that C3 plays in human biological processes, we will give an overview of the diseases linked to C3 deficiency and to uncontrolled C3 activation. Next, we will present a structural description of C3 activation and of the C3 fragments generated by complement regulation. We will proceed by describing the C3a interaction with the anaphylatoxin receptor, followed by the interactions of opsonins (C3b, iC3b, and C3dg/C3d) with complement receptors, divided into two groups: receptors bearing complement regulatory functions and the effector receptors without complement regulatory activity. We outline the molecular architecture of the receptors, their binding sites on the C3 activation fragments, the cells expressing them, the diversity of their functions, and recent advances. With this review, we aim to give an up-to-date analysis of the processes triggered by C3 activation fragments on different cell types in health and disease contexts.
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Affiliation(s)
- Alessandra Zarantonello
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
| | - Margot Revel
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
| | - Anne Grunenwald
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
| | - Lubka T Roumenina
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, Paris, France
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Thomas-Dupont P, Velázquez-Soto H, Izaguirre-Hernández IY, Amieva-Balmori M, Triana-Romero A, Islas-Vázquez L, Jiménez-Martínez MDC, Remes-Troche JM. Obesity Contributes to Inflammation in Patients with IBS via Complement Component 3 and C-Reactive Protein. Nutrients 2022; 14:nu14245227. [PMID: 36558394 PMCID: PMC9781895 DOI: 10.3390/nu14245227] [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: 10/13/2022] [Revised: 11/24/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
Irritable Bowel Syndrome (IBS) is usually a lifelong state that disturbs the digestive system. IBS has been linked to low-grade inflammation and the release of inflammatory mediators into the bloodstream. This could be associated with the degree of obesity presented by patients with IBS. Reports imply that IBS is more frequent in obese patients than in the overall population, with a prevalence of up to 31%. Here, we evaluated the serum levels of immunological and inflammation molecules and their correlation with Body Mass Index in IBS patients and the healthy control (HC). Seventy-nine serum samples of the IBS patients and thirty-five of the HC group were analyzed to determine the levels of each molecule and compare them with their BMI. Serum levels of C3 and C4 were significantly increased in IBS patients. C3 and C4 levels were higher in IBS-M and IBS-D subtypes compared with the HC group. When patients were grouped by BMI, a positive correlation between serum C3 (r = 0.49, p < 0.0001) and CRP (r = 0.40, p < 0.001) levels was found. Our results show, for the first time, a correlation between immunological molecules and BMI in IBS patients, suggesting that the inflammatory nature of obesity could contribute to the development of the symptoms in IBS through the stimulation and release of proteins as complement components and CRP.
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Affiliation(s)
- Pablo Thomas-Dupont
- Instituto de Investigaciones Médico-Biológicas, Universidad Veracruzana, Veracruz 91700, Mexico
| | - Henry Velázquez-Soto
- Departamento de Inmunología y Unidad de Investigación, Instituto de Oftalmología “Conde de Valencia”, Ciudad de México 06800, Mexico
| | | | - Mercedes Amieva-Balmori
- Instituto de Investigaciones Médico-Biológicas, Universidad Veracruzana, Veracruz 91700, Mexico
| | - Arturo Triana-Romero
- Instituto de Investigaciones Médico-Biológicas, Universidad Veracruzana, Veracruz 91700, Mexico
| | - Lorenzo Islas-Vázquez
- Departamento de Inmunología y Unidad de Investigación, Instituto de Oftalmología “Conde de Valencia”, Ciudad de México 06800, Mexico
| | - María del Carmen Jiménez-Martínez
- Departamento de Inmunología y Unidad de Investigación, Instituto de Oftalmología “Conde de Valencia”, Ciudad de México 06800, Mexico
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - José María Remes-Troche
- Instituto de Investigaciones Médico-Biológicas, Universidad Veracruzana, Veracruz 91700, Mexico
- Correspondence: ; Tel.: +52-228-842-17-00 (ext. 26421)
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Dodd KC, Menon M. Sex bias in lymphocytes: Implications for autoimmune diseases. Front Immunol 2022; 13:945762. [PMID: 36505451 PMCID: PMC9730535 DOI: 10.3389/fimmu.2022.945762] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 11/03/2022] [Indexed: 11/25/2022] Open
Abstract
Autoimmune diseases are characterized by a significant sex dimorphism, with women showing increased susceptibility to disease. This is, at least in part, due to sex-dependent differences in the immune system that are influenced by the complex interplay between sex hormones and sex chromosomes, with contribution from sociological factors, diet and gut microbiota. Sex differences are evident in the number and function of lymphocyte populations. Women mount a stronger pro-inflammatory response than males, with increased lymphocyte proliferation, activation and pro-inflammatory cytokine production, whereas men display expanded regulatory cell subsets. Ageing alters the immune landscape of men and women in differing ways, resulting in changes in autoimmune disease susceptibility. Here we review the current literature on sex differences in lymphocyte function, the factors that influence this, and the implications for autoimmune disease. We propose that improved understanding of sex bias in lymphocyte function can provide sex-specific tailoring of treatment strategies for better management of autoimmune diseases.
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Affiliation(s)
- Katherine C. Dodd
- Lydia Becker Institute of Immunology and Inflammation, Division of Immunology, Immunity to Infection and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom,Manchester Centre for Clinical Neurosciences, Salford Royal Hospital, Salford, United Kingdom
| | - Madhvi Menon
- Lydia Becker Institute of Immunology and Inflammation, Division of Immunology, Immunity to Infection and Respiratory Medicine, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom,*Correspondence: Madhvi Menon,
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Hurler L, Toonen EJM, Kajdácsi E, van Bree B, Brandwijk RJMGE, de Bruin W, Lyons PA, Bergamaschi L, Sinkovits G, Cervenak L, Würzner R, Prohászka Z. Distinction of early complement classical and lectin pathway activation via quantification of C1s/C1-INH and MASP-1/C1-INH complexes using novel ELISAs. Front Immunol 2022; 13:1039765. [PMID: 36420270 PMCID: PMC9677118 DOI: 10.3389/fimmu.2022.1039765] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/06/2022] [Indexed: 07/22/2023] Open
Abstract
The most commonly used markers to assess complement activation are split products that are produced through activation of all three pathways and are located downstream of C3. In contrast, C4d derives from the cleavage of C4 and indicates either classical (CP) or lectin pathway (LP) activation. Although C4d is perfectly able to distinguish between CP/LP and alternative pathway (AP) activation, no well-established markers are available to differentiate between early CP and LP activation. Active enzymes of both pathways (C1s/C1r for the CP, MASP-1/MASP-2 for the LP) are regulated by C1 esterase inhibitor (C1-INH) through the formation of covalent complexes. Aim of this study was to develop validated immunoassays detecting C1s/C1-INH and MASP-1/C1-INH complex levels. Measurement of the complexes reveals information about the involvement of the respective pathways in complement-mediated diseases. Two sandwich ELISAs detecting C1s/C1-INH and MASP-1/C1-INH complex were developed and tested thoroughly, and it was investigated whether C1s/C1-INH and MASP-1/C1-INH complexes could serve as markers for either early CP or LP activation. In addition, a reference range for these complexes in healthy adults was defined, and the assays were clinically validated utilizing samples of 414 COVID-19 patients and 96 healthy controls. The immunoassays can reliably measure C1s/C1-INH and MASP-1/C1-INH complex concentrations in EDTA plasma from healthy and diseased individuals. Both complex levels are increased in serum when activated with zymosan, making them suitable markers for early classical and early lectin pathway activation. Furthermore, measurements of C1-INH complexes in 96 healthy adults showed normally distributed C1s/C1-INH complex levels with a physiological concentration of 1846 ± 1060 ng/mL (mean ± 2SD) and right-skewed distribution of MASP-1/C1-INH complex levels with a median concentration of 36.9 (13.18 - 87.89) ng/mL (2.5-97.5 percentile range), while levels of both complexes were increased in COVID-19 patients (p<0.0001). The newly developed assays measure C1-INH complex levels in an accurate way. C1s/C1-INH and MASP-1/C1-INH complexes are suitable markers to assess early classical and lectin pathway activation. An initial reference range was set and first studies showed that these markers have added value for investigating and unraveling complement activation in human disease.
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Affiliation(s)
- Lisa Hurler
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - Erik J. M. Toonen
- Research and Development Department, Hycult Biotech, Uden, Netherlands
| | - Erika Kajdácsi
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - Bregje van Bree
- Research and Development Department, Hycult Biotech, Uden, Netherlands
| | | | - Wieke de Bruin
- Research and Development Department, Hycult Biotech, Uden, Netherlands
| | - Paul A. Lyons
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, United Kingdom
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | - Laura Bergamaschi
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, United Kingdom
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge, United Kingdom
| | | | - György Sinkovits
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - László Cervenak
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - Reinhard Würzner
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Zoltán Prohászka
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
- Research Group for Immunology and Haematology, Semmelweis University – Eötvös Loránd Research Network (Office for Supported Research Groups), Budapest, Hungary
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46
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Jin S, Reesink KD, Kroon AA, de Galan B, van der Kallen CJH, Wesselius A, Schalkwijk CG, Stehouwer CDA, van Greevenbroek MMJ. Complement factors D and C3 cross-sectionally associate with arterial stiffness, but not independently of metabolic risk factors: The Maastricht Study. J Hypertens 2022; 40:2161-2170. [PMID: 35881455 DOI: 10.1097/hjh.0000000000003237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Arterial stiffness predicts cardiovascular outcomes. The complement system, particularly the alternative complement pathway, has been implicated in cardiovascular diseases. We herein investigated the associations of factor D, the rate-limiting protease of the alternative pathway, and C3, the central complement component, with arterial stiffness. METHODS In 3019 population-based participants (51.9% men, 60.1 ± 8.2 years, 27.7% type 2 diabetes [T2D], oversampled]), we measured carotid-femoral pulse wave velocity (cfPWV), carotid distensibility coefficient (DC) and carotid Young's elastic modulus (YEM), and plasma concentrations of factors D and C3. We conducted multiple linear regression to investigate the association of factors D and C3 (main independent variables, standardized) with cfPWV (primary outcome) and DC and YEM (secondary outcomes), adjusted for potential confounders. RESULTS Per SD higher factors D and C3, cfPWV was 0.41 m/s [95% confidence interval: 0.34; 0.49] and 0.33 m/s [0.25; 0.41] greater, respectively. These associations were substantially attenuated when adjusted for age, sex, education, mean arterial pressure, and heart rate (0.08 m/s [0.02; 0.15] and 0.11 m/s [0.05; 0.18], respectively), and were not significant when additionally adjusted for T2D, waist circumference and additional cardiovascular risk factors (0.06 m/s [-0.01; 0.13] and 0.01 m/s [-0.06; 0.09], respectively). Results were comparable for carotid YEM and DC. In persons with T2D, but not in those without, the association between factors D and cfPWV was significant in the fully adjusted model (0.14 m/s, [0.01; 0.27], P = 0.038, Pinteraction < 0.05). CONCLUSION The strong association of plasma factors D and C3 with arterial stiffness in this population-based cohort was not independent of T2D and other metabolic risk factors. Our data suggest that a possible causal pathway starting from alternative complement activation may via hypertension and T2D contribute to greater arterial stiffness.
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Affiliation(s)
- Shunxin Jin
- CARIM School for Cardiovascular Diseases
- Department of Internal Medicine
| | - Koen D Reesink
- CARIM School for Cardiovascular Diseases
- Department of Biomedical Technology
| | - Abraham A Kroon
- CARIM School for Cardiovascular Diseases
- Department of Internal Medicine
| | | | | | - Anke Wesselius
- Department of Genetics
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University and Maastricht University Medical Centre, Maastricht, The Netherlands
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47
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Wu N, Xiao F, Zhang J, Chi Y, Zhai Y, Chen B, Lu J. Proteomic characteristics of plasma and blood cells in natural aging rhesus monkeys. Proteomics 2022; 22:e2200049. [PMID: 36037246 DOI: 10.1002/pmic.202200049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 07/13/2022] [Accepted: 08/09/2022] [Indexed: 12/29/2022]
Abstract
Aging has become a serious social issue that places a heavy burden on society. However, the underlying mechanisms of aging remain unclear. This study sought to understand the aging process as it may be affected by proteins in the blood, the most important functional system for material transportation in the body. We analyzed and compared the protein expression spectrums in the blood of old and young rhesus monkeys and found 257 proteins expressed differentially in plasma and 1183 proteins expressed differentially in blood cells. Through bioinformatics analysis, we found that the differentially-expressed proteins in plasma were involved in signal pathways related to complement and coagulation cascades, pertussis, malaria, phagosome, and cholesterol metabolism, while the differentially-expressed proteins in blood cells were involved in endocytosis, proteasome, ribosome, protein processing in the endoplasmic reticulum, and Parkinson's disease. We confirmed that the protein levels of complement C2 in plasma and actin-related protein 2/3 complex subunit 2 (ARPC2) in blood cells obviously decreased, whereas the complement C3 and complement component 4 binding protein beta (C4BPB) significantly increased in plasma of old rhesus monkeys and C57BL/6 mice. Our results suggest that C2, C3, C4BPB, and ARPC2 can be used as target proteins for anti-aging research.
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Affiliation(s)
- Na Wu
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China
| | - Fuchuan Xiao
- Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jing Zhang
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China.,Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yafei Chi
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China
| | - Yanan Zhai
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China
| | - Baian Chen
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China.,Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jing Lu
- Laboratory Animal Resource Center, Capital Medical University, Beijing, China.,School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, China.,Department of Laboratory Animal Sciences, School of Basic Medical Sciences, Capital Medical University, Beijing, China
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48
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Sun Y, Zou Y, Wang H, Cui G, Yu Z, Ren Z. Immune response induced by novel coronavirus infection. Front Cell Infect Microbiol 2022; 12:988604. [PMID: 36389144 PMCID: PMC9641212 DOI: 10.3389/fcimb.2022.988604] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus (SARS-CoV)-2 has been prominent around the world since it was first discovered, affecting more than 100 million people. Although the symptoms of most infected patients are not serious, there is still a considerable proportion of patients who need hospitalization and even develop fatal symptoms such as cytokine storms, acute respiratory distress syndrome and so on. Cytokine storm is usually described as a collection of clinical manifestations caused by overactivation of the immune system, which plays an important role in tissue injury and multiorgan failure. The immune system of healthy individuals is composed of two interrelated parts, the innate immune system and the adaptive immune system. Innate immunity is the body's first line of defense against viruses; it can quickly perceive viruses through pattern recognition receptors and activate related inflammatory pathways to clear pathogens. The adaptive immune system is activated by specific antigens and is mainly composed of CD4+ T cells, CD8+ T cells and B cells, which play different roles in viral infection. Here, we discuss the immune response after SARS-CoV-2 infection. In-depth study of the recognition of and response of innate immunity and adaptive immunity to SARS-CoV-2 will help to prevent the development of critical cases and aid the exploration of more targeted treatments.
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Affiliation(s)
- Ying Sun
- Department of Infectious Diseases, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yawen Zou
- Department of Infectious Diseases, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Haiyu Wang
- Department of Infectious Diseases, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guangying Cui
- Department of Infectious Diseases, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zujiang Yu
- Department of Infectious Diseases, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhigang Ren
- Department of Infectious Diseases, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- Gene Hospital of Henan Province, Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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49
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Stenson EK, Kendrick J, Dixon B, Thurman JM. The complement system in pediatric acute kidney injury. Pediatr Nephrol 2022; 38:1411-1425. [PMID: 36203104 PMCID: PMC9540254 DOI: 10.1007/s00467-022-05755-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 08/08/2022] [Accepted: 09/09/2022] [Indexed: 10/24/2022]
Abstract
The complement cascade is an important part of the innate immune system. In addition to helping the body to eliminate pathogens, however, complement activation also contributes to the pathogenesis of a wide range of kidney diseases. Recent work has revealed that uncontrolled complement activation is the key driver of several rare kidney diseases in children, including atypical hemolytic uremic syndrome and C3 glomerulopathy. In addition, a growing body of literature has implicated complement in the pathogenesis of more common kidney diseases, including acute kidney injury (AKI). Complement-targeted therapeutics are in use for a variety of diseases, and an increasing number of therapeutic agents are under development. With the implication of complement in the pathogenesis of AKI, complement-targeted therapeutics could be trialed to prevent or treat this condition. In this review, we discuss the evidence that the complement system is activated in pediatric patients with AKI, and we review the role of complement proteins as biomarkers and therapeutic targets in patients with AKI.
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Affiliation(s)
- Erin K. Stenson
- grid.430503.10000 0001 0703 675XSection of Pediatric Critical Care Medicine, Department of Pediatrics, University of Colorado School of Medicine, 13121 E 17th Avenue, MS8414, Aurora, CO 80045 USA
| | - Jessica Kendrick
- grid.430503.10000 0001 0703 675XDivision of Renal Disease and Hypertension, Department of Medicine, University of Colorado School of Medicine, Aurora, CO USA
| | - Bradley Dixon
- grid.430503.10000 0001 0703 675XRenal Section, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO USA
| | - Joshua M. Thurman
- grid.430503.10000 0001 0703 675XDivision of Renal Disease and Hypertension, Department of Medicine, University of Colorado School of Medicine, Aurora, CO USA
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50
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Bruni F, Charitos P, Lampart M, Moser S, Siegemund M, Bingisser R, Osswald S, Bassetti S, Twerenbold R, Trendelenburg M, Rentsch KM, Osthoff M. Complement and endothelial cell activation in COVID-19 patients compared to controls with suspected SARS-CoV-2 infection: A prospective cohort study. Front Immunol 2022; 13:941742. [PMID: 36203596 PMCID: PMC9530900 DOI: 10.3389/fimmu.2022.941742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Background Thromboinflammation may influence disease outcome in COVID-19. We aimed to evaluate complement and endothelial cell activation in patients with confirmed COVID-19 compared to controls with clinically suspected but excluded SARS-CoV-2 infection. Methods In a prospective, observational, single-center study, patients presenting with clinically suspected COVID-19 were recruited in the emergency department. Blood samples on presentation were obtained for analysis of C5a, sC5b-9, E-selectin, Galectin-3, ICAM-1 and VCAM-1. Results 153 cases and 166 controls (suffering mainly from non-SARS-CoV-2 respiratory viral infections, non-infectious inflammatory conditions and bacterial pneumonia) were included. Hospital admission occurred in 62% and 45% of cases and controls, respectively. C5a and VCAM-1 concentrations were significantly elevated and E-selectin concentrations decreased in COVID-19 out- and inpatients compared to the respective controls. However, relative differences in outpatients vs. inpatients in most biomarkers were comparable between cases and controls. Elevated concentrations of C5a, Galectin-3, ICAM-1 and VCAM-1 on presentation were associated with the composite outcome of ICU- admission or 30-day mortality in COVID-19 and controls, yet more pronounced in COVID-19. C5a and sC5b-9 concentrations were significantly higher in COVID-19 males vs. females, which was not observed in the control group. Conclusions Our data indicate an activation of the complement cascade and endothelium in COVID-19 beyond a nonspecific inflammatory trigger as observed in controls (i.e., “over”-activation).
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Affiliation(s)
- Flavio Bruni
- Division of Internal Medicine, Department of Biomedicine and Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Panteleimon Charitos
- Division of Internal Medicine, Department of Biomedicine and Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Maurin Lampart
- Department of Cardiology and Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland
| | - Stephan Moser
- Division of Internal Medicine, Department of Biomedicine and Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Martin Siegemund
- Intensive Care Unit, University Hospital Basel, Basel, Switzerland
| | - Roland Bingisser
- Emergency Department, University Hospital Basel, Basel, Switzerland
| | - Stefan Osswald
- Department of Cardiology and Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland
| | - Stefano Bassetti
- Division of Internal Medicine, Department of Biomedicine and Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Raphael Twerenbold
- Department of Cardiology and Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland
- University Center of Cardiovascular Science & Department of Cardiology, University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marten Trendelenburg
- Division of Internal Medicine, Department of Biomedicine and Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | | | - Michael Osthoff
- Division of Internal Medicine, Department of Biomedicine and Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
- *Correspondence: Michael Osthoff,
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