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Zhou ZR, Fang SB, Liu XQ, Li CG, Xie YC, He BX, Sun Q, Tian T, Deng XH, Fu QL. Serum amyloid A1 induced dysfunction of airway macrophages via CD36 pathway in allergic airway inflammation. Int Immunopharmacol 2024; 142:113081. [PMID: 39244902 DOI: 10.1016/j.intimp.2024.113081] [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: 06/09/2024] [Revised: 08/30/2024] [Accepted: 09/01/2024] [Indexed: 09/10/2024]
Abstract
Previous studies showed that serum amyloid A (SAA) and macrophages were associated with allergic airway inflammation. However, the interaction between SAA1 and macrophages in allergic airway inflammation remains to be further elucidated. In this study, the levels of SAA1 were measured in nasal tissues from patients with eosinophilic chronic rhinosinusitis with nasal polyps (CRSwNP), house dust mite (HDM)-treated BEAS-2B cells and the tissues of mice of HDM-induced allergic airway inflammation. Human monocytes-derived macrophages and mouse bone marrow-derived macrophages (BMDMs) were exposed to SAA1, and CCL17 and the other M1/M2-related factors were evaluated using RT-PCR and/or ELISA. To test the effects of SAA1-treated BMDMs on chemotaxis and differentiation of CD4+ T cells, number of migrated cells and the levels of Th1 and Th2 were measured using flow cytometry. SAA1 receptors were examined in BMDMs and lung macrophages of model mice. CD36 neutralizing antibody was applied to explore the mechanisms of SAA1 in regulating BMDMs using RT-PCR and/or ELISA. We found that SAA1 was expressed in epithelial cells, and was increased in the nasal tissues of patients with eosinophilic CRSwNP and HDM-treated BEAS-2B- cells as well as the bronchoalveolar lavage fluid and lung tissues of mice exposed to HDM. We also found that the level of CCL17 was increased in M2 macrophages, more CD4+ T cells were recruited and proportion of Th2 was increased after the treatment of SAA1. The treatment of CD36 neutralizing antibody decreased CCL17 level in SAA1-treated M2 BMDMs. In summary, our results showed that SAA1 was increased in allergic airway inflammation, and the administration of SAA1 upregulated the expression of CCL17 in M2 macrophages via CD36 and promoted the chemotaxis of CD4+ T cells and differentiation of Th2. It may provide a new therapeutic strategy that could mediate allergic airway inflammation via suppressing SAA1 to reduce recruitment of CD4+ T cells and activation of Th2.
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Affiliation(s)
- Zhi-Rou Zhou
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China
| | - Shu-Bin Fang
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China
| | - Xiao-Qing Liu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China
| | - Chan-Gu Li
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China
| | - Ying-Chun Xie
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China
| | - Bi-Xin He
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China
| | - Qi Sun
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China
| | - Tian Tian
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China; Extracellular Vesicle Research and Clinical Translational Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Hui Deng
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China; Extracellular Vesicle Research and Clinical Translational Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qing-Ling Fu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Allergy, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Otorhinolaryngology Institute of Sun Yat-sen University, Guangzhou, China; Guangzhou Key Laboratory of Otorhinolaryngology, Guangzhou, China; Extracellular Vesicle Research and Clinical Translational Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Caraballo L. Exploring the relationship between house dust mites and asthma. Expert Rev Clin Immunol 2024; 20:1019-1022. [PMID: 38652085 DOI: 10.1080/1744666x.2024.2346585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Affiliation(s)
- Luis Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia
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Zhang W, Zhang J, Jiao D, Tang Q, Gao X, Li Z, Yang F, Zhao Z, Yang L. Single-Cell RNA Sequencing Reveals a Unique Fibroblastic Subset and Immune Disorder in Lichen Sclerosus Urethral Stricture. J Inflamm Res 2024; 17:5327-5346. [PMID: 39157587 PMCID: PMC11330248 DOI: 10.2147/jir.s466317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 08/02/2024] [Indexed: 08/20/2024] Open
Abstract
Purpose Lichen sclerosus urethral stricture disease (LS USD) is a refractory and progressive disease primarily affecting the anterior urethra in males. Various potential etiological factors, such as genetics, autoimmunity, infection, and exposure to infectious urine, have been suggested. However, the accurate etiology of LS in the male urethra remains unclear. Patients and Methods In this study, we conducted single-cell RNA sequencing to identify the transcriptional profiles of three patients with LS USD and three patients with non-LS USD. Immunofluorescence was used to confirm the single-cell sequence results. Results Our study revealed distinct subsets of vein endothelial cells (ECs), smooth muscle cells (SMCs), and fibroblasts (FBs) with high proportions in LS USD, contributing to the tissue microenvironment primarily involved in proinflammatory and immune responses. In particular, FBs displayed a unique subset, Fib7, which is exclusively present in LS USD, and exhibited high expression levels of SAA1 and SAA2. The accumulation of macrophages, along with the dysregulated ratios of M1/M2-like phenotype macrophages, may be engaged in the pathogenesis of LS USD. Through cell-cell communication analysis, we identified significant interactions involving CXCL8/ACKR1 and CCR7/CCL19 in LS USD. Remarkably, Fib7 exhibited exclusive communication with IL-1B macrophages through the SAA1/FPR2 receptor-ligand pair. Conclusion Our study provides a profound understanding of the tissue microenvironment in LS USD, which may be valuable for understanding the pathogenesis of LS USD.
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Affiliation(s)
- Wei Zhang
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Jiayu Zhang
- Department of Urology, Air Force Hospital of Southern Theater Command, Guangzhou, Guangdong, 510062, People’s Republic of China
| | - Dian Jiao
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Qisheng Tang
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Xiaoping Gao
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Zhenyu Li
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Fa Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710032, People’s Republic of China
| | - Zhiguang Zhao
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
| | - Longfei Yang
- Department of Transfusion Medicine, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi, 710038, People’s Republic of China
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4
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Yao X, Kaler M, Qu X, Kalidhindi RSR, Sviridov D, Dasseux A, Barr E, Keeran K, Jeffries KR, Yu ZX, Gao M, Gordon S, Barochia AV, Mills J, Shahid S, Weir NA, Kalchiem-Dekel O, Theard P, Playford MP, Stylianou M, Fitzgerald W, Remaley AT, Levine SJ. Asthmatic patients with high serum amyloid A have proinflammatory HDL: Implications for augmented systemic and airway inflammation. J Allergy Clin Immunol 2024; 153:1010-1024.e14. [PMID: 38092139 PMCID: PMC10999351 DOI: 10.1016/j.jaci.2023.11.917] [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: 03/07/2023] [Revised: 10/26/2023] [Accepted: 11/10/2023] [Indexed: 01/15/2024]
Abstract
RATIONALE Serum amyloid A (SAA) is bound to high-density lipoproteins (HDL) in blood. Although SAA is increased in the blood of patients with asthma, it is not known whether this modifies asthma severity. OBJECTIVE We sought to define the clinical characteristics of patients with asthma who have high SAA levels and assess whether HDL from SAA-high patients with asthma is proinflammatory. METHODS SAA levels in serum from subjects with and without asthma were quantified by ELISA. HDLs isolated from subjects with asthma and high SAA levels were used to stimulate human monocytes and were intravenously administered to BALB/c mice. RESULTS An SAA level greater than or equal to 108.8 μg/mL was defined as the threshold to identify 11% of an asthmatic cohort (n = 146) as being SAA-high. SAA-high patients with asthma were characterized by increased serum C-reactive protein, IL-6, and TNF-α; older age; and an increased prevalence of obesity and severe asthma. HDL isolated from SAA-high patients with asthma (SAA-high HDL) had an increased content of SAA as compared with HDL from SAA-low patients with asthma and induced the secretion of IL-6, IL-1β, and TNF-α from human monocytes via a formyl peptide receptor 2/ATP/P2X purinoceptor 7 axis. Intravenous administration to mice of SAA-high HDL, but not normal HDL, induced systemic inflammation and amplified allergen-induced neutrophilic airway inflammation and goblet cell metaplasia. CONCLUSIONS SAA-high patients with asthma are characterized by systemic inflammation, older age, and an increased prevalence of obesity and severe asthma. HDL from SAA-high patients with asthma is proinflammatory and, when intravenously administered to mice, induces systemic inflammation, and amplifies allergen-induced neutrophilic airway inflammation. This suggests that systemic inflammation induced by SAA-high HDL may augment disease severity in asthma.
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Affiliation(s)
- Xianglan Yao
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Maryann Kaler
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Xuan Qu
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | | | - Denis Sviridov
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Amaury Dasseux
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Eric Barr
- Animal Surgery and Resources Core Facility, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Karen Keeran
- Animal Surgery and Resources Core Facility, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Kenneth R Jeffries
- Animal Surgery and Resources Core Facility, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Zu-Xi Yu
- Pathology Core Facility, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Meixia Gao
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Scott Gordon
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Amisha V Barochia
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Joni Mills
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Shahid Shahid
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Nargues A Weir
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Or Kalchiem-Dekel
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Patricia Theard
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Martin P Playford
- Section on Inflammation and Cardiometabolic Diseases, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Mario Stylianou
- Office of Biostatistics Research, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
| | - Wendy Fitzgerald
- Section on Intercellular Interactions, National Institute of Child Health and Development, National Institutes of Health, Bethesda, Md
| | - Alan T Remaley
- Lipoprotein Metabolism Laboratory, National Heart, Lung, and Blood Institute, Bethesda, Md
| | - Stewart J Levine
- Laboratory of Asthma and Lung Inflammation, Pulmonary Branch, National Heart, Lung, and Blood Institute, Bethesda, Md.
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5
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Campbell E, Hesser LA, Berni Canani R, Carucci L, Paparo L, Patry RT, Nagler CR. A Lipopolysaccharide-Enriched Cow's Milk Allergy Microbiome Promotes a TLR4-Dependent Proinflammatory Intestinal Immune Response. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:702-714. [PMID: 38169331 PMCID: PMC10872367 DOI: 10.4049/jimmunol.2300518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024]
Abstract
We have previously reported that the gut microbiota of healthy infants harbors allergy-protective bacteria taxa that are depleted in infants with cow's milk allergy (CMA). Few reports have investigated the role of the gut microbiota in promoting allergic responses. In this study we selected a CMA-associated microbiota with increased abundance of Gram-negative bacteria for analysis of its proinflammatory potential. LPS is the major component of the outer membrane of Gram-negative bacteria. Colonization of mice with a global or conditional mutation of the LPS receptor TLR4 with this CMA microbiota induced expression of serum amyloid A1 (Saa1) and other Th17-, B cell-, and Th2-associated genes in the ileal epithelium in a TLR4-dependent manner. In agreement with the gene expression data, mice colonized with the CMA microbiota have expanded populations of Th17 and regulatory T cells and elevated concentrations of fecal IgA. Importantly, we used both antibiotic-treated specific pathogen-free and germ-free rederived mice with a conditional mutation of TLR4 in the CD11c+ compartment to demonstrate that the induction of proinflammatory genes, fecal IgA, and Th17 cells is dependent on TLR4 signaling. Furthermore, metagenomic sequencing revealed that the CMA microbiota has an increased abundance of LPS biosynthesis genes. Taken together, our results show that a microbiota displaying a higher abundance of LPS genes is associated with TLR4-dependent proinflammatory gene expression and a mixed type 2/type 3 response in mice, which may be characteristic of a subset of infants with CMA.
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Affiliation(s)
- Evelyn Campbell
- Committee on Microbiology, The University of Chicago, Chicago, IL. U.S.A
| | - Lauren A. Hesser
- Department of Pathology, The University of Chicago, Chicago, IL. U.S.A
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL. U.S.A
| | - Roberto Berni Canani
- Department of Translational Medical Science and ImmunoNutrition Lab at CEINGE Advanced Biotechnologies Research Center and Task Force for Microbiome Studies, Section of Pediatrics, University of Naples Federico II, Naples, Italy
| | - Laura Carucci
- Department of Translational Medical Science and ImmunoNutrition Lab at CEINGE Advanced Biotechnologies Research Center and Task Force for Microbiome Studies, Section of Pediatrics, University of Naples Federico II, Naples, Italy
| | - Lorella Paparo
- Department of Translational Medical Science and ImmunoNutrition Lab at CEINGE Advanced Biotechnologies Research Center and Task Force for Microbiome Studies, Section of Pediatrics, University of Naples Federico II, Naples, Italy
| | - Robert T. Patry
- Department of Pathology, The University of Chicago, Chicago, IL. U.S.A
| | - Cathryn R. Nagler
- Department of Pathology, The University of Chicago, Chicago, IL. U.S.A
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL. U.S.A
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6
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Carvallo A, Veleiro B, Sabaté-Brescó M, Baeza ML, Guilarte M, Herrera-Lasso V, Rodríguez-Garijo N, Diaz Donado C, Labrador-Horrillo M, Ferrer M. Serum Amyloid A as a Potential Biomarker for Disease Activity in Chronic Spontaneous Urticaria. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:195-200. [PMID: 37716523 DOI: 10.1016/j.jaip.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/16/2023] [Accepted: 09/01/2023] [Indexed: 09/18/2023]
Abstract
BACKGROUND Chronic spontaneous urticaria (CSU) is an inflammatory skin disease with a complex physiopathology. Serum amyloid A (SAA), an acute-phase reactant, has been proposed as a potential biomarker in urticaria but has yet to be studied in a population with CSU or correlated with disease activity as indicated by the Urticaria Activity Score summed over 7 days (UAS7). OBJECTIVE We sought to determine SAA-1 levels in patients with CSU and correlate them with its activity and control, as well as with clinical features of CSU and other potential blood biomarkers. METHODS We conducted a retrospective multicenter study of 67 patients with CSU, from whom we obtained demographic and clinical data, UAS7 as an indicator of CSU activity, and blood and serum markers. RESULTS SAA-1 levels positively correlated with UAS7 (rs = 0.47, P < .001). SAA-1 levels were higher in patients with noncontrolled (UAS7 > 6) CSU than in those with controlled (UAS ≤ 6) CSU (P < .001) and were also higher in patients with concomitant angioedema (P = .003) or delayed pressure urticaria (P = .003). CONCLUSION We propose SAA-1 as a potential biomarker for activity in CSU. Further studies are required to evaluate its potential role as a biomarker for other CSU outcomes, such as response to treatment.
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Affiliation(s)
- Alvaro Carvallo
- Department of Allergy and Clinical Immunology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Beatriz Veleiro
- Allergy Department, Complexo Hospitalario Universitario A Coruña, A Coruña, Spain
| | - Marina Sabaté-Brescó
- Department of Allergy and Clinical Immunology, Clínica Universidad de Navarra, Pamplona, Spain; Immune, Infectious and Inflammatory Diseases Research, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain; RICORS Red De Enfermedades Inflamatorias (REI), Madrid, Spain.
| | - Maria Luisa Baeza
- Allergy Service, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Biomedical Research Network on Rare Diseases (CIBERER)-U761, Gregorio Marañón Health Research Institute, Madrid, Spain
| | - Mar Guilarte
- Allergy Section, Internal Medicine Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | | | | | - Carmen Diaz Donado
- Allergy Section, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Moisés Labrador-Horrillo
- Allergy Section, Internal Medicine Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Marta Ferrer
- Department of Allergy and Clinical Immunology, Clínica Universidad de Navarra, Pamplona, Spain; Immune, Infectious and Inflammatory Diseases Research, Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain; RICORS Red De Enfermedades Inflamatorias (REI), Madrid, Spain
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7
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Baru A, Devi C, Mukhopadhyay T, Dogra N. Anti bacterial function of secreted human FABP3. Biochim Biophys Acta Gen Subj 2023; 1867:130472. [PMID: 37788726 DOI: 10.1016/j.bbagen.2023.130472] [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: 03/14/2023] [Revised: 09/12/2023] [Accepted: 09/28/2023] [Indexed: 10/05/2023]
Abstract
FABP3 belongs to a large family of cytoplasmic fatty acid binding proteins that are expressed in a tissue-specific manner. It is predominantly expressed in breast, muscle and heart. During our exploratory studies on the role of FABP3 in tumorigenesis and our consequent attempts to study the molecular mechanism responsible for the oncogenic potential of FABP3, we came across an unexpected role of FABP3 as an anti-bacterial protein. Presence of the protein was detected in culture media of cell lines stably over-expressing human FABP3. Conditioned medium from these FABP3 over-expressing cells exerted a distinct anti-bacterial activity against E. coli. Our results indicate that binding of FABP3 to the bacterial cell surface contributes to its anti-bacterial activity. Incubation of E. coli bacterial cells with FABP3 protein led to disruption of the physical integrity of bacterial cell membrane causing leakage of cellular components. Further, in silico analysis predicted strong binding of FABP3 to the antibiotic binding sites on the bacterial ribosome. Interestingly, we found that FABP3 is a naturally occurring secretory protein present in milk in abundance as confirmed by western blot and ELISA. Thus, our experimental data together with in silico analysis suggests that FABP3 is secreted in milk, has an anti-bacterial function, shows activity against E. coli by disrupting bacterial membrane and targeting the ribosome, and may play a protective role against bacterial infection in newborns.
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Affiliation(s)
- Ambica Baru
- National Centre for Human Genome Studies and Research, Panjab University, Sector-14, Chandigarh-160014, India
| | - Chandra Devi
- National Centre for Human Genome Studies and Research, Panjab University, Sector-14, Chandigarh-160014, India
| | - Tapas Mukhopadhyay
- National Centre for Human Genome Studies and Research, Panjab University, Sector-14, Chandigarh-160014, India.
| | - Nilambra Dogra
- National Centre for Human Genome Studies and Research, Panjab University, Sector-14, Chandigarh-160014, India.
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8
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Wang X, Wen S, Du X, Zhang Y, Yang X, Zou R, Feng B, Fu X, Jiang F, Zhou G, Liu Z, Zhu W, Ma R, Feng J, Shen B. SAA suppresses α-PD-1 induced anti-tumor immunity by driving T H2 polarization in lung adenocarcinoma. Cell Death Dis 2023; 14:718. [PMID: 37925492 PMCID: PMC10625560 DOI: 10.1038/s41419-023-06198-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/21/2023] [Accepted: 09/28/2023] [Indexed: 11/06/2023]
Abstract
Cancer stem cells (CSCs) are believed to be crucial in the initiation, progression, and recurrence of cancer. CSCs are also known to be more resistant to cancer treatments. However, the interaction between CSCs and the immune microenvironment is complex and not fully understood. In current study we used single cell RNA sequence (scRNA-Seq, public dataset) technology to identify the characteristic of CSCs. We found that the lung adenocarcinoma cancer stem population is highly inflammatory and remodels the tumor microenvironment by secreting inflammatory factors, specifically the acute phase protein serum amyloid A (SAA). Next, we developed an ex-vivo autologous patient-derived organoids (PDOs) and peripheral blood mononuclear cells (PBMCs) co-culture model to evaluate the immune biological impact of SAA. We found that SAA not only promotes chemoresistance by inducing cancer stem transformation, but also restricts anti-tumor immunity and promotes tumor fibrosis by driving type 2 immunity, and α-SAA neutralization antibody could restrict treatment resistant and tumor fibrosis. Mechanically, we found that the malignant phenotype induced by SAA is dependent on P2X7 receptor. Our data indicate that cancer stem cells secreted SAA have significant biological impact to promote treatment resistant and tumor fibrosis by driving cancer stemness transformation and type 2 immunity polarization via P2X7 receptor. Notably, α-SAA neutralization antibody shows therapeutic potential by restricting these malignant phenotypes.
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Affiliation(s)
- Xin Wang
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Shaodi Wen
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Xiaoyue Du
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Yihan Zhang
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Xiao Yang
- Department of Clinical Laboratory, Jiangsu Cancer Hospital, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Renrui Zou
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Bing Feng
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Xiao Fu
- Department of General Surgery, Nanjing Drum Tower Hospital, Nanjing, China
- Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Feng Jiang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Guoren Zhou
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Zi Liu
- Nanjing Advanced Analysis Tech. (NAAT) Co., LTD, Nanjing, China
| | - Wei Zhu
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Rong Ma
- Research Center for Clinical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Jifeng Feng
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China.
| | - Bo Shen
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China.
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9
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Gan C, Wang J, Wang Y, Martínez-Chávez A, Hillebrand M, de Vries N, Beukers J, Lebre MC, Wagenaar E, Rosing H, Klarenbeek S, Bleijerveld OB, Song JY, Altelaar M, Beijnen JH, Schinkel AH. Natural deletion of mouse carboxylesterases Ces1c/d/e impacts drug metabolism and metabolic syndrome development. Biomed Pharmacother 2023; 164:114956. [PMID: 37267638 DOI: 10.1016/j.biopha.2023.114956] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/12/2023] [Accepted: 05/27/2023] [Indexed: 06/04/2023] Open
Abstract
Mammalian carboxylesterase 1 enzymes can hydrolyze many xenobiotic chemicals and endogenous lipids. We here identified and characterized a mouse strain (FVB/NKI) in which three of the eight Ces1 genes were spontaneously deleted, removing Ces1c and Ces1e partly, and Ces1d entirely. We studied the impact of this Ces1c/d/e deficiency on drug and lipid metabolism and homeostasis. Ces1c/d/e-/- mice showed strongly impaired conversion of the anticancer prodrug irinotecan to its active metabolite SN-38 in plasma, spleen and lung. Plasma hydrolysis of the oral anticancer prodrug capecitabine to 5-DFCR was also profoundly reduced in Ces1c/d/e-/- mice. Our findings resolved previously unexplained FVB/NKI pharmacokinetic anomalies. On a medium-fat diet, Ces1c/d/e-/- female mice exhibited moderately higher body weight, mild inflammation in gonadal white adipose tissue (gWAT), and increased lipid load in brown adipose tissue (BAT). Ces1c/d/e-/- males showed more pronounced inflammation in gWAT and an increased lipid load in BAT. On a 5-week high-fat diet exposure, Ces1c/d/e deficiency predisposed to developing obesity, enlarged and fatty liver, glucose intolerance and insulin resistance, with severe inflammation in gWAT and increased lipid load in BAT. Hepatic proteomics analysis revealed that the acute phase response, involved in the dynamic cycle of immunometabolism, was activated in these Ces1c/d/e-/- mice. This may contribute to the obesity-related chronic inflammation and adverse metabolic disease in this strain. While Ces1c/d/e deficiency clearly exacerbated metabolic syndrome development, long-term (18-week) high-fat diet exposure overwhelmed many, albeit not all, observed phenotypic differences.
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Affiliation(s)
- Changpei Gan
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Jing Wang
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Yaogeng Wang
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Alejandra Martínez-Chávez
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands; Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Michel Hillebrand
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Niels de Vries
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Joke Beukers
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Maria C Lebre
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Els Wagenaar
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Hilde Rosing
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Sjoerd Klarenbeek
- Experimental Animal Pathology Facility, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Onno B Bleijerveld
- Proteomics Core Facility, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Ji-Ying Song
- Experimental Animal Pathology Facility, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands
| | - Maarten Altelaar
- Proteomics Core Facility, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands; Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, and Netherlands Proteomics Center, Padualaan 8, Utrecht 3584 CH, The Netherlands
| | - Jos H Beijnen
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands; Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands; Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht 3584 CS, the Netherlands
| | - Alfred H Schinkel
- Division of Pharmacology, The Netherlands Cancer Institute, Amsterdam 1066 CX, The Netherlands.
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10
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Zhang C, Zhang H, Tang Q, Zhang J, Wang S, Xie Z, Jiang W. Allergic Rhinitis as an Independent Risk Factor for Postoperative Recurrence of Children Chronic Sinusitis. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1207. [PMID: 37508704 PMCID: PMC10378190 DOI: 10.3390/children10071207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 06/28/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023]
Abstract
(1) Background: The recurrence rate of childhood recurrent sinusitis varies widely between 12% and 50%, with the postoperative recurrence risk factors remaining largely unidentified. We sought to enhance the understanding of chronic rhinosinusitis (CRS) via a retrospective observational childhood cohort. (2) Methods: The study recruited 125 cases. Demographic data and univariate and multivariate logistic regression analyses were conducted to investigate potential risk factors of childhood recurrent sinusitis following functional endoscopic sinus surgery (FESS). (3) Results: A postoperative recurrence rate of 21.6% was determined. Among the participants, 21 cases presented a history of allergic rhinitis (AR), with the remaining 104 cases being AR-free. A significantly heightened recurrence rate was noted in those bearing a history of AR compared to their counterparts devoid of such history (p < 0.000). The fully adjusted logistic regression model indicated a 21.04-fold increased risk of postoperative recurrence in childhood CRS bearing a history of AR compared to those without an AR history (p = 0.000), highlighting the history of AR as an independent risk factor for postoperative childhood recurrent sinusitis (p = 0.001); (4) Conclusions: The data implicate AR as an independent risk factor for postoperative childhood recurrent sinusitis.
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Affiliation(s)
- Caixia Zhang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Kaifu District, Changsha 410008, China
- Hunan Province Key Laboratory of Otolaryngology Critical Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha 410008, China
- Anatomy Laboratory of Division of Nose and Cranial Base, Clinical Anatomy Center of Xiangya Hospital, Central South University, Changsha 410008, China
| | - Hua Zhang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Kaifu District, Changsha 410008, China
- Hunan Province Key Laboratory of Otolaryngology Critical Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha 410008, China
- Anatomy Laboratory of Division of Nose and Cranial Base, Clinical Anatomy Center of Xiangya Hospital, Central South University, Changsha 410008, China
| | - Qingping Tang
- Department of Rehabilitation, Brain Hospital of Hunan Province, Hunan University of Chinese Medicine, Changsha 410008, China
| | - Junyi Zhang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Kaifu District, Changsha 410008, China
- Hunan Province Key Laboratory of Otolaryngology Critical Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha 410008, China
- Anatomy Laboratory of Division of Nose and Cranial Base, Clinical Anatomy Center of Xiangya Hospital, Central South University, Changsha 410008, China
| | - Shuo Wang
- Department of Pediatric, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhihai Xie
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Kaifu District, Changsha 410008, China
- Hunan Province Key Laboratory of Otolaryngology Critical Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha 410008, China
- Anatomy Laboratory of Division of Nose and Cranial Base, Clinical Anatomy Center of Xiangya Hospital, Central South University, Changsha 410008, China
| | - Weihong Jiang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital of Central South University, No. 87 Xiangya Road, Kaifu District, Changsha 410008, China
- Hunan Province Key Laboratory of Otolaryngology Critical Diseases, Xiangya Hospital of Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha 410008, China
- Anatomy Laboratory of Division of Nose and Cranial Base, Clinical Anatomy Center of Xiangya Hospital, Central South University, Changsha 410008, China
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11
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Zhou Y, Kuai S, Pan R, Li Q, Zhang J, Gu X, Ren H, Cui Y. Quantitative proteomics profiling of plasma from children with asthma. Int Immunopharmacol 2023; 119:110249. [PMID: 37146352 DOI: 10.1016/j.intimp.2023.110249] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/07/2023]
Abstract
A lack of validated blood diagnostic markers presents an obstacle to asthma control. The present study sought to profile the plasma proteins of children with asthma and to determine potential biomarkers. Plasma samples from children in acute exacerbation (n = 4), in clinical remission (n = 4), and from healthy children (n = 4, control) were analyzed using a tandem mass tag (TMT)-labeling quantitative proteomics and the candidate biomarkers were validated using liquid chromatography-parallel reaction monitoring (PRM)/mass spectrometry (MS) with enzyme-linked immunosorbent assay (ELISA). We identified 347 proteins with differential expression between groups: 125 (50 upregulated, 75 downregulated) between acute exacerbation and control, 142 (72 upregulated, 70 downregulated) between clinical remission and control, and 55 (22 upregulated, 33 downregulated) between acute and remission groups (all between-group fold changes > 1.2; P < 0.05 by Student's t-test). Gene ontology analysis implicated differentially expressed proteins among children with asthma in immune response, the extracellular region, and protein binding. Further, KEGG pathway analysis of differentially expressed proteins identified complement and coagulation cascades and Staphylococcus aureus infection pathways as having the highest protein aggregation. Our analyses of protein interactions identified important node proteins, particularly KRT10. Among 11 differentially expressed proteins, seven proteins (IgHD, IgHG4, AACT, IgHA1, SAA, HBB, and HBA1) were verified through PRM/MS. Protein levels of AACT, IgA, SAA, and HBB were verified through ELISA and may be useful as biomarkers to identify individuals with asthma. In conclusion, our study presents a novel comprehensive analysis of changes in plasma proteins in children with asthma and identifies a panel for accessory diagnosis of pediatric asthma.
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Affiliation(s)
- Ying Zhou
- Department of Pediatrics Laboratory, The Affiliated Wuxi Children's Hospital of Jiangnan University, Wuxi 214023, Jiangsu Province, China
| | - Shougang Kuai
- Department of Clinical Laboratory, Huishan District Hospital, Wuxi 214187, Jiangsu Province, China
| | - Ruilin Pan
- Clinical Research Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, Jiangsu Province, China
| | - Qingqing Li
- Clinical Research Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, Jiangsu Province, China
| | - Jian Zhang
- Department of Clinical Laboratory, The Affiliated Wuxi Children's Hospital of Jiangnan University, Wuxi 214023, Jiangsu Province, China
| | - Xiaohong Gu
- Department of Respiratory, The Affiliated Wuxi Children's Hospital of Jiangnan University, Wuxi 214023, Jiangsu Province, China
| | - Huali Ren
- Department of Allergy, State Grid Beijing Electric Power Hospital, Capital Medical University Electric Power Teaching Hospital, Beijing 100073, China.
| | - Yubao Cui
- Department of Clinical Laboratory, Huishan District Hospital, Wuxi 214187, Jiangsu Province, China.
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12
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Simbrunner B, Hartl L, Jachs M, Bauer DJ, Scheiner B, Hofer BS, Stättermayer AF, Marculescu R, Trauner M, Mandorfer M, Reiberger T. Dysregulated biomarkers of innate and adaptive immunity predict infections and disease progression in cirrhosis. JHEP Rep 2023; 5:100712. [PMID: 37035457 PMCID: PMC10074195 DOI: 10.1016/j.jhepr.2023.100712] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/15/2023] [Accepted: 02/09/2023] [Indexed: 04/11/2023] Open
Abstract
Background & Aims Cirrhosis-associated immune dysfunction (CAID) affects both innate and adaptive immunity. This study investigated the complement system, immunoglobulins, and acute-phase proteins and their prognostic relevance in patients with advanced chronic liver disease (ACLD). Methods Patients with ACLD (hepatic venous pressure gradient [HVPG] ≥6 mmHg) but without acute decompensation/infections were characterised by HVPG and by clinical EASL stages: compensated (cACLD; S0-2) vs. decompensated ACLD (dACLD) with previous variceal bleeding (S3), non-bleeding decompensation (S4), or further decompensation (S5). Complement factors (C3c, C4, CH50), immunoglobulins (IgA, IgM, IgG, IgG1-4), acute-phase proteins and systemic inflammation biomarkers (white blood cells, C-reactive protein, IL-6, procalcitonin) were measured. Results A total of 245 patients (median model for end-stage liver disease score: 11 [9-15], median HVPG: 17 [12-21] mmHg) were included with 150 (61%) presenting dACLD. Complement levels and activity significantly decreased in dACLD substages S4 and S5 (p <0.001). Total IgA/IgM/IgG and IgG1-4 subtype levels increased in patients with dACLD (all p <0.05). Complement and immunoglobulin levels correlated negatively and positively, respectively, with systemic inflammation (all p <0.05). High IgG-1 (adjusted hazard ratio per 100 mg/dl: 1.12, 1.04-1.19, p = 0.002) and IL-6 (adjusted hazard ratio: 1.03, 1.00-1.05, p = 0.023) levels predicted the development of infections during follow-up. High IgA (stratified by median; log-rank p <0.001), high IgG1 (log-rank p = 0.043) and low C3c (log-rank p = 0.003) indicated a higher risk of first/further decompensation or liver-related death (composite endpoint). Next to HVPG and IL-6, low C3c (adjusted hazard ratio per mg/dl: 0.99, 0.97-0.99, p = 0.040) remained independently associated with the composite endpoint on multivariate Cox regression analysis. Conclusions Complement levels and immunoglobulins may serve as surrogates of cirrhosis-associated immune dysfunction and associate with cirrhosis severity and systemic inflammation. Low complement C3c predicted decompensation and liver-related death, whereas high IgG-1 indicated an increased risk for infections. Impact and Implications Patients with cirrhosis are at increased risk for infections, which worsen their prognosis. We found a significant dysregulation of several essential components of the immune system that was linked to disease severity and indicated a risk for infections and other complications. Simple blood tests identify patients at particularly high risk, who may be candidates for preventive measures. Clinical Trials Registration This study is registered at ClinicalTrials.gov (NCT03267615).
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Affiliation(s)
- Benedikt Simbrunner
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Portal Hypertension and Liver Fibrosis, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases (LBI-RUD), Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Lukas Hartl
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Mathias Jachs
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - David J.M. Bauer
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Bernhard Scheiner
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Benedikt Silvester Hofer
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Portal Hypertension and Liver Fibrosis, Medical University of Vienna, Vienna, Austria
| | - Albert Friedrich Stättermayer
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Rodrig Marculescu
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Mattias Mandorfer
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Thomas Reiberger
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Portal Hypertension and Liver Fibrosis, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases (LBI-RUD), Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Corresponding author. Address: Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria. Tel.: +43-1-40400-47440; Fax: +43-1-40400-47350
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13
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Mondol E, Donado K, Regino R, Hernandez K, Mercado D, Mercado AC, Benedetti I, Puerta L, Zakzuk J, Caraballo L. The Allergenic Activity of Blo t 2, a Blomia tropicalis IgE-Binding Molecule. Int J Mol Sci 2023; 24:ijms24065543. [PMID: 36982614 PMCID: PMC10053487 DOI: 10.3390/ijms24065543] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
Only few allergens derived from house dust mite (HDM) species have been evaluated in terms of their potential to induce allergic inflammation. In this study, we aimed to evaluate different aspects of the allergenicity and allergenic activity of Blo t 2, a Blomia tropicalis allergen. Blo t 2 was produced as a recombinant protein in Escherichia coli. Its allergenic activity was tested in humans by skin prick test and basophil activation assays, and in mice, by passive cutaneous anaphylaxis and a model of allergic airway inflammation. Sensitization rate to Blo t 2 (54.3%) was similar to that found to Blo t 21 (57.2%) and higher than to Der p 2 (37.5%). Most Blo t 2-sensitized patients showed a low intensity response (99.5%). Blo t 2 elicited CD203c upregulation and allergen induced skin inflammation. Additionally, immunized animals produced anti-Blo t 2 IgE antibodies and passive transfer of their serum to non-immunized animals induced skin inflammation after allergen exposure. Immunized animals developed bronchial hyperreactivity and a strong inflammatory lung reaction (eosinophils and neutrophils). These results confirm the allergenic activity of Blo t 2 and supports its clinical relevance.
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14
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Lin YK, Zhang F, Lei WJ, Gan XW, Li MD, Pan F, Wang WS, Sun K. Amnion-derived serum amyloid A1 participates in sterile inflammation of fetal membranes at parturition. Inflamm Res 2023; 72:797-812. [PMID: 36879064 DOI: 10.1007/s00011-023-01713-3] [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: 01/04/2023] [Revised: 02/05/2023] [Accepted: 02/19/2023] [Indexed: 03/08/2023] Open
Abstract
OBJECTIVES Sterile inflammation of fetal membranes is an indispensable event of normal parturition. However, triggers of sterile inflammation are not fully resolved. Serum amyloid A1 (SAA1) is an acute phase protein produced primarily by the liver. Fetal membranes can also synthesize SAA1 but its functions are not well defined. Given the role of SAA1 in the acute phase response to inflammation, we postulated that SAA1 synthesized in the fetal membranes may be a trigger of local inflammation at parturition. METHODS The changes of SAA1 abundance in parturition were studied in the amnion of human fetal membranes. The role of SAA1 in chemokine expression and leukocyte chemotaxis was examined in cultured human amnion tissue explants as well as primary human amnion fibroblasts. The effects of SAA1 on monocytes, macrophages and dendritic cells were investigated in cells derived from a human leukemia monocytic cell line (THP-1). RESULTS SAA1 synthesis increased significantly in human amnion at parturition. SAA1 evoked multiple chemotaxis pathways in human amnion fibroblasts along with upregulation of a series of chemokines via both toll-like receptor 4 (TLR4) and formyl peptide receptor 2 (FPR2). Moreover, SAA1-conditioned medium of cultured amnion fibroblasts was capable of chemoattracting virtually all types of mononuclear leukocytes, particularly monocytes and dendritic cells, which reconciled with the chemotactic activity of conditioned medium of cultured amnion tissue explants collected from spontaneous labor. Furthermore, SAA1 could induce the expression of genes associated with inflammation and extracellular matrix remodeling in monocytes, macrophages and dendritic cells derived from THP-1. CONCLUSIONS SAA1 is a trigger of sterile inflammation of the fetal membranes at parturition.
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Affiliation(s)
- Yi-Kai Lin
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China
| | - Fan Zhang
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China
| | - Wen-Jia Lei
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China
| | - Xiao-Wen Gan
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China
| | - Meng-Die Li
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China
| | - Fan Pan
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China
| | - Wang-Sheng Wang
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China. .,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China.
| | - Kang Sun
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong university, Shanghai, People's Republic of China. .,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People's Republic of China.
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15
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Jacquet A. The HDM allergen orchestra and its cysteine protease maestro: Stimulators of kaleidoscopic innate immune responses. Mol Immunol 2023; 156:48-60. [PMID: 36889186 DOI: 10.1016/j.molimm.2023.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/29/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023]
Abstract
House dust mite (HDM) encloses an explosive cocktail of allergenic proteins sensitizing hundreds of millions of people worldwide. To date, the innate cellular and molecular mechanism(s) orchestrating the HDM-induced allergic inflammation remains partially deciphered. Understanding the kaleidoscope of HDM-induced innate immune responses is hampered by (1) the large complexity of the HDM allergome with very diverse functional bioreactivities, (2) the perpetual presence of microbial compounds (at least LPS, β-glucan, chitin) promoting as well pro-Th2 innate signaling pathways and (3) multiple cross-talks involving structural, neuronal and immune cells. The present review provides an update on the innate immune properties, identified so far, of multiple HDM allergen groups. Experimental evidence highlights the importance of HDM allergens displaying protease or lipid-binding activities on the initiation of the allergic responses. Specifically, group 1 HDM cysteine proteases are considered as the key initiators of the allergic response through their capacities to impair the epithelial barrier integrity, to stimulate the release of pro-Th2 danger-associated molecular patterns (DAMPs) in epithelial cells, to produce super-active forms of IL-33 alarmin and to mature thrombin leading to Toll-like receptor 4 (TLR4) activation. Remarkably, the recently evidenced primary sensing of cysteine protease allergens by nociceptive neurons confirms the critical role of this HDM allergen group in the early events leading to Th2 differentiation.
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Affiliation(s)
- Alain Jacquet
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
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16
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Dramburg S, Hilger C, Santos AF, de Las Vecillas L, Aalberse RC, Acevedo N, Aglas L, Altmann F, Arruda KL, Asero R, Ballmer-Weber B, Barber D, Beyer K, Biedermann T, Bilo MB, Blank S, Bosshard PP, Breiteneder H, Brough HA, Bublin M, Campbell D, Caraballo L, Caubet JC, Celi G, Chapman MD, Chruszcz M, Custovic A, Czolk R, Davies J, Douladiris N, Eberlein B, Ebisawa M, Ehlers A, Eigenmann P, Gadermaier G, Giovannini M, Gomez F, Grohman R, Guillet C, Hafner C, Hamilton RG, Hauser M, Hawranek T, Hoffmann HJ, Holzhauser T, Iizuka T, Jacquet A, Jakob T, Janssen-Weets B, Jappe U, Jutel M, Kalic T, Kamath S, Kespohl S, Kleine-Tebbe J, Knol E, Knulst A, Konradsen JR, Korošec P, Kuehn A, Lack G, Le TM, Lopata A, Luengo O, Mäkelä M, Marra AM, Mills C, Morisset M, Muraro A, Nowak-Wegrzyn A, Nugraha R, Ollert M, Palosuo K, Pastorello EA, Patil SU, Platts-Mills T, Pomés A, Poncet P, Potapova E, Poulsen LK, Radauer C, Radulovic S, Raulf M, Rougé P, Sastre J, Sato S, Scala E, Schmid JM, Schmid-Grendelmeier P, Schrama D, Sénéchal H, Traidl-Hoffmann C, Valverde-Monge M, van Hage M, van Ree R, Verhoeckx K, Vieths S, Wickman M, Zakzuk J, Matricardi PM, Hoffmann-Sommergruber K. EAACI Molecular Allergology User's Guide 2.0. Pediatr Allergy Immunol 2023; 34 Suppl 28:e13854. [PMID: 37186333 DOI: 10.1111/pai.13854] [Citation(s) in RCA: 63] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 09/05/2022] [Indexed: 05/17/2023]
Abstract
Since the discovery of immunoglobulin E (IgE) as a mediator of allergic diseases in 1967, our knowledge about the immunological mechanisms of IgE-mediated allergies has remarkably increased. In addition to understanding the immune response and clinical symptoms, allergy diagnosis and management depend strongly on the precise identification of the elicitors of the IgE-mediated allergic reaction. In the past four decades, innovations in bioscience and technology have facilitated the identification and production of well-defined, highly pure molecules for component-resolved diagnosis (CRD), allowing a personalized diagnosis and management of the allergic disease for individual patients. The first edition of the "EAACI Molecular Allergology User's Guide" (MAUG) in 2016 rapidly became a key reference for clinicians, scientists, and interested readers with a background in allergology, immunology, biology, and medicine. Nevertheless, the field of molecular allergology is moving fast, and after 6 years, a new EAACI Taskforce was established to provide an updated document. The Molecular Allergology User's Guide 2.0 summarizes state-of-the-art information on allergen molecules, their clinical relevance, and their application in diagnostic algorithms for clinical practice. It is designed for both, clinicians and scientists, guiding health care professionals through the overwhelming list of different allergen molecules available for testing. Further, it provides diagnostic algorithms on the clinical relevance of allergenic molecules and gives an overview of their biology, the basic mechanisms of test formats, and the application of tests to measure allergen exposure.
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Affiliation(s)
- Stephanie Dramburg
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Christiane Hilger
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Alexandra F Santos
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | | | - Rob C Aalberse
- Sanquin Research, Dept Immunopathology, University of Amsterdam, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Nathalie Acevedo
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Lorenz Aglas
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Friedrich Altmann
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Karla L Arruda
- Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brasil, Brazil
| | - Riccardo Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
| | - Barbara Ballmer-Weber
- Klinik für Dermatologie und Allergologie, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Domingo Barber
- Institute of Applied Molecular Medicine Nemesio Diez (IMMAND), Department of Basic Medical Sciences, Facultad de Medicina, Universidad San Pablo CEU, CEU Universities, Madrid, Spain
- RETIC ARADyAL and RICORS Enfermedades Inflamatorias (REI), Madrid, Spain
| | - Kirsten Beyer
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University Munich, Munich, Germany
| | - Maria Beatrice Bilo
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
- Allergy Unit Department of Internal Medicine, University Hospital Ospedali Riuniti di Ancona, Torrette, Italy
| | - Simon Blank
- Center of Allergy and Environment (ZAUM), Technical University of Munich, School of Medicine and Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Philipp P Bosshard
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Heimo Breiteneder
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Helen A Brough
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Merima Bublin
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Dianne Campbell
- Department of Allergy and Immunology, Children's Hospital at Westmead, Sydney Children's Hospitals Network, Sydney, New South Wales, Australia
- Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Luis Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Jean Christoph Caubet
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - Giorgio Celi
- Centro DH Allergologia e Immunologia Clinica ASST- MANTOVA (MN), Mantova, Italy
| | | | - Maksymilian Chruszcz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA
| | - Adnan Custovic
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Rebecca Czolk
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Janet Davies
- Queensland University of Technology, Centre for Immunology and Infection Control, School of Biomedical Sciences, Herston, Queensland, Australia
- Metro North Hospital and Health Service, Emergency Operations Centre, Herston, Queensland, Australia
| | - Nikolaos Douladiris
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Bernadette Eberlein
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University Munich, Munich, Germany
| | - Motohiro Ebisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Anna Ehlers
- Chemical Biology and Drug Discovery, Utrecht University, Utrecht, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Philippe Eigenmann
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - Gabriele Gadermaier
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Mattia Giovannini
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Francisca Gomez
- Allergy Unit IBIMA-Hospital Regional Universitario de Malaga, Malaga, Spain
- Spanish Network for Allergy research RETIC ARADyAL, Malaga, Spain
| | - Rebecca Grohman
- NYU Langone Health, Department of Internal Medicine, New York, New York, USA
| | - Carole Guillet
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Christine Hafner
- Department of Dermatology, University Hospital St. Poelten, Karl Landsteiner University of Health Sciences, St. Poelten, Austria
| | - Robert G Hamilton
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael Hauser
- Department of Biosciences and Medical Biology, Paris Lodron University Salzburg, Salzburg, Austria
| | - Thomas Hawranek
- Department of Dermatology and Allergology, Paracelsus Private Medical University, Salzburg, Austria
| | - Hans Jürgen Hoffmann
- Institute for Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | | | - Tomona Iizuka
- Laboratory of Protein Science, Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Alain Jacquet
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Thilo Jakob
- Department of Dermatology and Allergology, University Medical Center, Justus Liebig University Gießen, Gießen, Germany
| | - Bente Janssen-Weets
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Uta Jappe
- Division of Clinical and Molecular Allergology, Priority Research Area Asthma and Allergy, Research Center Borstel, Borstel, Germany
- Leibniz Lung Center, Airway Research Center North (ARCN), Member of the German Center for Lung Research, Germany
- Interdisciplinary Allergy Outpatient Clinic, Dept. of Pneumology, University of Lübeck, Lübeck, Germany
| | - Marek Jutel
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland
| | - Tanja Kalic
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
- Department of Dermatology, University Hospital St. Poelten, Karl Landsteiner University of Health Sciences, St. Poelten, Austria
| | - Sandip Kamath
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Sabine Kespohl
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr- Universität Bochum, Bochum, Germany
| | - Jörg Kleine-Tebbe
- Allergy & Asthma Center Westend, Outpatient Clinic and Clinical Research Center, Berlin, Germany
| | - Edward Knol
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - André Knulst
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Jon R Konradsen
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Peter Korošec
- University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Annette Kuehn
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Gideon Lack
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Thuy-My Le
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Andreas Lopata
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Olga Luengo
- RETIC ARADyAL and RICORS Enfermedades Inflamatorias (REI), Madrid, Spain
- Allergy Section, Internal Medicine Department, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mika Mäkelä
- Division of Allergy, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Pediatric Department, Skin and Allergy Hospital, Helsinki University Central Hospital, Helsinki, Finland
| | | | - Clare Mills
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
| | | | - Antonella Muraro
- Food Allergy Referral Centre, Department of Woman and Child Health, Padua University Hospital, Padua, Italy
| | - Anna Nowak-Wegrzyn
- Division of Pediatric Allergy and Immunology, NYU Grossman School of Medicine, Hassenfeld Children's Hospital, New York, New York, USA
- Department of Pediatrics, Gastroenterology and Nutrition, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland
| | - Roni Nugraha
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
- Department of Aquatic Product Technology, Faculty of Fisheries and Marine Science, IPB University, Bogor, Indonesia
| | - Markus Ollert
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Kati Palosuo
- Department of Allergology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | | | - Sarita Ulhas Patil
- Division of Rheumatology, Allergy and Immunology, Departments of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Division of Allergy and Immunology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Thomas Platts-Mills
- Division of Allergy and Clinical Immunology, University of Virginia, Charlottesville, Virginia, USA
| | | | - Pascal Poncet
- Institut Pasteur, Immunology Department, Paris, France
- Allergy & Environment Research Team Armand Trousseau Children Hospital, APHP, Paris, France
| | - Ekaterina Potapova
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Lars K Poulsen
- Allergy Clinic, Department of Dermatology and Allergy, Copenhagen University Hospital-Herlev and Gentofte, Copenhagen, Denmark
| | - Christian Radauer
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Suzana Radulovic
- Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Monika Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr- Universität Bochum, Bochum, Germany
| | - Pierre Rougé
- UMR 152 PharmaDev, IRD, Université Paul Sabatier, Faculté de Pharmacie, Toulouse, France
| | - Joaquin Sastre
- Allergy Service, Fundación Jiménez Díaz; CIBER de Enfermedades Respiratorias (CIBERES); Faculty of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Sakura Sato
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit - IDI- IRCCS, Fondazione L M Monti Rome, Rome, Italy
| | - Johannes M Schmid
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Peter Schmid-Grendelmeier
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
| | - Denise Schrama
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
| | - Hélène Sénéchal
- Allergy & Environment Research Team Armand Trousseau Children Hospital, APHP, Paris, France
| | - Claudia Traidl-Hoffmann
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Marcela Valverde-Monge
- Allergy Service, Fundación Jiménez Díaz; CIBER de Enfermedades Respiratorias (CIBERES); Faculty of Medicine, Universidad Autonoma de Madrid, Madrid, Spain
| | - Marianne van Hage
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Ronald van Ree
- Department of Experimental Immunology and Department of Otorhinolaryngology, Amsterdam University Medical Centers, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Kitty Verhoeckx
- Department of Immunology and Dermatology/ Allergology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Stefan Vieths
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - Magnus Wickman
- Department of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Josefina Zakzuk
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia, Colombia
| | - Paolo M Matricardi
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
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McDaniel MM, Lara HI, von Moltke J. Initiation of type 2 immunity at barrier surfaces. Mucosal Immunol 2023; 16:86-97. [PMID: 36642383 DOI: 10.1016/j.mucimm.2022.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 01/15/2023]
Abstract
Although seemingly unrelated, parasitic worms, venoms, and allergens all induce a type 2 immune response. The effector functions and clinical features of type 2 immunity are well-defined, but fundamental questions about the initiation of type 2 immunity remain unresolved. How are these enormously diverse type 2 stimuli first detected? How are type 2 helper T cells primed and regulated? And how do mechanisms of type 2 initiation vary across tissues? Here, we review the common themes governing type 2 immune sensing and explore aspects of T cell priming and effector reactivation that make type 2 helper T cells a unique T helper lineage. Throughout the review, we emphasize the importance of non-hematopoietic cells and highlight how the unique anatomy and physiology of each barrier tissue shape mechanisms of type 2 immune initiation.
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Affiliation(s)
- Margaret M McDaniel
- Department of Immunology, University of Washington School of Medicine, Seattle, USA.
| | - Heber I Lara
- Department of Immunology, University of Washington School of Medicine, Seattle, USA
| | - Jakob von Moltke
- Department of Immunology, University of Washington School of Medicine, Seattle, USA
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Abouelasrar Salama S, Gouwy M, Van Damme J, Struyf S. Acute-serum amyloid A and A-SAA-derived peptides as formyl peptide receptor (FPR) 2 ligands. Front Endocrinol (Lausanne) 2023; 14:1119227. [PMID: 36817589 PMCID: PMC9935590 DOI: 10.3389/fendo.2023.1119227] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Originally, it was thought that a single serum amyloid A (SAA) protein was involved in amyloid A amyloidosis, but in fact, SAA represents a four-membered family wherein SAA1 and SAA2 are acute phase proteins (A-SAA). SAA is highly conserved throughout evolution within a wide range of animal species suggestive of an important biological function. In fact, A-SAA has been linked to a number of divergent biological activities wherein a number of these functions are mediated via the G protein-coupled receptor (GPCR), formyl peptide receptor (FPR) 2. For instance, through the activation of FPR2, A-SAA has been described to regulate leukocyte activation, atherosclerosis, pathogen recognition, bone formation and cell survival. Moreover, A-SAA is subject to post-translational modification, primarily through proteolytic processing, generating a range of A-SAA-derived peptides. Although very little is known regarding the biological effect of A-SAA-derived peptides, they have been shown to promote neutrophil and monocyte migration through FPR2 activation via synergy with other GPCR ligands namely, the chemokines CXCL8 and CCL3, respectively. Within this review, we provide a detailed analysis of the FPR2-mediated functions of A-SAA. Moreover, we discuss the potential role of A-SAA-derived peptides as allosteric modulators of FPR2.
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Yeh SJ, Chen CH, Lin YH, Tsai LK, Lee CW, Tang SC, Jeng JS. Serum amyloid A predicts poor functional outcome in patients with ischemic stroke receiving endovascular thrombectomy: a case control study. J Neurointerv Surg 2023; 15:75-81. [PMID: 35058315 DOI: 10.1136/neurintsurg-2021-018234] [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: 09/14/2021] [Accepted: 12/18/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Post-stroke inflammation contributes to poor outcomes, but its impact on patients with stroke receiving endovascular thrombectomy (EVT) remains unknown. METHODS We enrolled adult patients with stroke who received EVT, with blood sampling immediately before (T1) and after EVT (T2), and at 24 hours after EVT (T3). Non-stroke controls and patients with non-EVT stroke were also enrolled. The medical information, image findings and levels of serum amyloid A (SAA) and C-reactive protein (CRP) were analyzed to clarify the association with poor functional outcome (modified Rankin Scale 4-6) at 3 months after stroke. RESULTS A total of 93 patients with stroke receiving EVT, 51 non-stroke controls, and 64 with non-EVT stroke were enrolled in this study. The SAA and CRP levels at T1 to T3 in patients with stroke receiving EVT were higher compared with those in controls (all p<0.001), and their levels at T3 were significantly higher than those at T1 (both p<0.0001) while similar to those in patients with non-EVT stroke. The SAA levels at the three time points were significantly associated with poor functional outcome (p=0.003 to 0.009). Furthermore, adding SAA level at T3 significantly improved the basic prediction model for 3-month poor functional outcome by receiver operating characteristic (ROC) analysis (areas under ROC curves from 0.803 to 0.878, p=0.03). CONCLUSIONS Our findings demonstrate that plasma levels of SAA at an early stage are significant predictors for poor functional outcomes at 3 months in patients with stroke receiving EVT, indicating the substantial role of systemic inflammation in shaping stroke outcomes following EVT.
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Affiliation(s)
- Shin-Joe Yeh
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chih-Hao Chen
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Heng Lin
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Kai Tsai
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Neurology, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan
| | - Chung-Wei Lee
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Sung-Chun Tang
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Jiann-Shing Jeng
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
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Wickstead ES, Solito E, McArthur S. Promiscuous Receptors and Neuroinflammation: The Formyl Peptide Class. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122009. [PMID: 36556373 PMCID: PMC9786789 DOI: 10.3390/life12122009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022]
Abstract
Formyl peptide receptors, abbreviated as FPRs in humans, are G-protein coupled receptors (GPCRs) mainly found in mammalian leukocytes. However, they are also expressed in cell types crucial for homeostatic brain regulation, including microglia and blood-brain barrier endothelial cells. Thus, the roles of these immune-associated receptors are extensive, from governing cellular adhesion and directed migration through chemotaxis, to granule release and superoxide formation, to phagocytosis and efferocytosis. In this review, we will describe the similarities and differences between the two principal pro-inflammatory and anti-inflammatory FPRs, FPR1 and FPR2, and the evidence for their importance in the development of neuroinflammatory disease, alongside their potential as therapeutic targets.
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Affiliation(s)
- Edward S. Wickstead
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: (E.S.W.); (S.M.)
| | - Egle Solito
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
- Department of Medicina Molecolare e Biotecnologie Mediche, University of Naples “Federico II”, 80131 Naples, Italy
| | - Simon McArthur
- Institute of Dentistry, Faculty of Medicine & Dentistry, Queen Mary University of London, Blizard Institute, 4, Newark Street, London E1 2AT, UK
- Correspondence: (E.S.W.); (S.M.)
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Hong L, Herjan T, Bulek K, Xiao J, Comhair SAA, Erzurum SC, Li X, Liu C. Mechanisms of Corticosteroid Resistance in Type 17 Asthma. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:1860-1869. [PMID: 36426949 PMCID: PMC9666330 DOI: 10.4049/jimmunol.2200288] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 09/07/2022] [Indexed: 12/14/2022]
Abstract
IL-17A plays an important role in the pathogenesis of asthma, particularly the neutrophilic corticosteroid (CS)-resistant subtype of asthma. Clinical studies suggest that a subset of asthma patients, i.e., Th17/IL-17A-mediated (type 17) CS-resistant neutrophilic asthma, may improve with Th17/IL-17A pathway blockade. However, little is known about the mechanisms underlying type 17 asthma and CS response. In this article, we show that blood levels of lipocalin-2 (LCN2) and serum amyloid A (SAA) levels are positively correlated with IL-17A levels and are not inhibited by high-dose CS usage in asthma patients. In airway cell culture systems, IL-17A induces these two secreted proteins, and their induction is enhanced by CS. Furthermore, plasma LCN2 and SAA levels are increased in mice on a preclinical type 17 asthma model, correlated to IL-17A levels, and are not reduced by glucocorticoid (GC). In the mechanistic studies, we identify CEBPB as the critical transcription factor responsible for the synergistic induction of LCN2 and SAA by IL-17A and GC. IL-17A and GC collaboratively regulate CEBPB at both transcriptional and posttranscriptional levels. The posttranscriptional regulation of CEBPB is mediated in part by Act1, the adaptor and RNA binding protein in IL-17A signaling, which directly binds CEBPB mRNA and inhibits its degradation. Overall, our findings suggest that blood LCN2 and SAA levels may be associated with a type 17 asthma subtype and provide insight into the molecular mechanism of the IL-17A-Act1/CEBPB axis on these CS-resistant genes.
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Affiliation(s)
- Lingzi Hong
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
- Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH
| | - Tomasz Herjan
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | - Katarzyna Bulek
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | - Jianxin Xiao
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | | | | | - Xiaoxia Li
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | - Caini Liu
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
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22
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Huang K, Wang Z, He Z, Li Y, Li S, Shen K, Zhu G, Liu Z, Lv S, Zhang C, Yang H, Yang X, Liu S. Downregulated formyl peptide receptor 2 expression in the epileptogenic foci of patients with focal cortical dysplasia type IIb and tuberous sclerosis complex. Immun Inflamm Dis 2022; 10:e706. [PMID: 36301030 PMCID: PMC9597500 DOI: 10.1002/iid3.706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Focal cortical dysplasia type IIb (FCDIIb) and tuberous sclerosis complex (TSC) show persistent neuroinflammation, which promotes epileptogenesis and epilepsy progression, suggesting that endogenous resolution of inflammation is inadequate to relieve neuronal network hyperexcitability. To explore the potential roles of formyl peptide receptor 2 (FPR2), which is a key regulator of inflammation resolution, in epilepsy caused by FCDIIb and TSC, we examined the expression and cellular distribution of FPR2. METHOD The expression of FPR2 and nuclear factor-κB (NF-κB) signaling pathway was examined by real-time PCR, western blots, and analyzed via one-way analysis of variance. The distribution of FPR2 was detected using immunostaining. The expression of resolvin D1 (RvD1, the endogenous ligand of FPR2) was observed via enzyme-linked immunosorbent assay. Pearson's correlation test was used to evaluate the correlation between the expression levels of FPR2 and RvD1 and the clinical variants. RESULTS The expression of FPR2 was significantly lower in FCDIIb (p = .0146) and TSC (p = .0006) cortical lesions than in controls, as was the expression of RvD1 (FCDIIb: p = .00431; TSC: p = .0439). Weak FPR2 immunoreactivity was observed in dysmorphic neurons (DNs), balloon cells (BCs), and giant cells (GCs) in FCDIIb and TSC tissues. Moreover, FPR2 was mainly distributed in dysplastic neurons; it was sparse in microglia and nearly absent in astrocytes. The NF-κB pathway was significantly activated in patients with FCDIIb and TSC, and the protein level of NF-κB was negatively correlated with the protein level of FPR2 (FCDIIb: p = .00395; TSC: p = .0399). In addition, the protein level of FPR2 was negatively correlated with seizure frequency in FCDIIb (p = .0434) and TSC (p = .0351) patients. CONCLUSION In summary, these results showed that the expression and specific distribution of FPR2 may be involved in epilepsy caused by FCDIIb and TSC, indicating that downregulation of FPR2 mediated the dysfunction of neuroinflammation resolution in FCDIIb and TSC.
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Affiliation(s)
- Kaixuan Huang
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Zhongke Wang
- Department of NeurosurgeryArmed Police Hospital of ChongqingChongqingChina
| | - Zeng He
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Yang Li
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Shujing Li
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Kaifeng Shen
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Gang Zhu
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Zhonghong Liu
- Department of NeurosurgeryArmed Police Hospital of ChongqingChongqingChina
| | - Shengqing Lv
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Chunqing Zhang
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Hui Yang
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Xiaolin Yang
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Shiyong Liu
- Department of Neurosurgery, Epilepsy Research Center of PLA, Xinqiao HospitalArmy Medical University (Third Military Medical University)ChongqingChina
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23
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Bergmann C, Poli A, Agache I, Bianchini R, Bax HJ, Castells M, Crescioli S, Dombrowicz D, Ferastraoaru D, Fiebiger E, Gould HJ, Hartmann K, Izquierdo E, Jordakieva G, Josephs DH, Jutel M, Levi‐Schaffer F, de las Vecillas L, Lotze MT, Osborn G, Pascal M, Redegeld F, Rosenstreich D, Roth‐Walter F, Schmidt‐Weber C, Shamji M, Steveling EH, Turner MC, Untersmayr E, Jensen‐Jarolim E, Karagiannis SN. AllergoOncology: Danger signals in allergology and oncology: A European Academy of Allergy and Clinical Immunology (EAACI) Position Paper. Allergy 2022; 77:2594-2617. [PMID: 35152450 PMCID: PMC9545837 DOI: 10.1111/all.15255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 01/27/2023]
Abstract
The immune system interacts with many nominal 'danger' signals, endogenous danger-associated (DAMP), exogenous pathogen (PAMP) and allergen (AAMP)-associated molecular patterns. The immune context under which these are received can promote or prevent immune activating or inflammatory mechanisms and may orchestrate diverse immune responses in allergy and cancer. Each can act either by favouring a respective pathology or by supporting the immune response to confer protective effects, depending on acuity or chronicity. In this Position Paper under the collective term danger signals or DAMPs, PAMPs and AAMPs, we consider their diverse roles in allergy and cancer and the connection between these in AllergoOncology. We focus on their interactions with different immune cells of the innate and adaptive immune system and how these promote immune responses with juxtaposing clinical outcomes in allergy and cancer. While danger signals present potential targets to overcome inflammatory responses in allergy, these may be reconsidered in relation to a history of allergy, chronic inflammation and autoimmunity linked to the risk of developing cancer, and with regard to clinical responses to anti-cancer immune and targeted therapies. Cross-disciplinary insights in AllergoOncology derived from dissecting clinical phenotypes of common danger signal pathways may improve allergy and cancer clinical outcomes.
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Affiliation(s)
- Christoph Bergmann
- Department of OtorhinolaryngologyRKM740 Interdisciplinary ClinicsDüsseldorfGermany
| | - Aurélie Poli
- Neuro‐Immunology GroupDepartment of OncologyLuxembourg Institute of HealthLuxembourgLuxembourg
| | - Ioana Agache
- Faculty of MedicineTransylania University BrasovBrasovRomania
| | - Rodolfo Bianchini
- Comparative MedicineThe Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaUniversity of ViennaViennaAustria
| | - Heather J. Bax
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom,School of Cancer and Pharmaceutical SciencesGuy's Hospital, King's College LondonLondonUnited Kingdom
| | - Mariana Castells
- Division of Allergy and Clinical Immunology, Department of MedicineBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Silvia Crescioli
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom
| | - David Dombrowicz
- University of Lille, Inserm, CHU Lille, Institut Pasteur de Lille U1011‐EGIDLilleFrance
| | - Denisa Ferastraoaru
- Department of Internal Medicine/Allergy and Immunology, Montefiore Medical CenterAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Edda Fiebiger
- Division of Gastroenterology, Hepatology and Nutrition Research, Department of Medicine ResearchChildren's University Hospital BostonBostonMassachusettsUSA
| | - Hannah J. Gould
- Randall Centre for Cell and Molecular Biophysics, School of Basic & Medical BiosciencesKing's College London, New Hunt's HouseLondonUnited Kingdom,Medical Research Council & Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUnited Kingdom
| | - Karin Hartmann
- Department of DermatologyUniversity of BaselBaselSwitzerland
| | - Elena Izquierdo
- IMMA, School of Medicine, Institute of Applied Molecular MedicineCEU San Pablo UniversityMadridSpain
| | - Galateja Jordakieva
- Department of Physical Medicine, Rehabilitation and Occupational MedicineMedical University of ViennaViennaAustria
| | - Debra H. Josephs
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom,School of Cancer and Pharmaceutical SciencesGuy's Hospital, King's College LondonLondonUnited Kingdom
| | - Marek Jutel
- Department of Clinical ImmunologyWroclaw Medical UniversityWroclawPoland,ALL‐MED Medical Research InstituteWroclawPoland
| | - Francesca Levi‐Schaffer
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Faculty of MedicineThe Institute for Drug Research, The Hebrew University of JerusalemJerusalemIsrael
| | | | - Michael T. Lotze
- G.27A Hillman Cancer CenterUniversity of Pittsburgh Medical CenterPittsburghPennsylvaniaUSA
| | - Gabriel Osborn
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom
| | - Mariona Pascal
- Department of Immunology, CDB, Hospital Clinic de BarcelonaInstitut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de BarcelonaBarcelonaSpain
| | - Frank Redegeld
- Division of Pharmacology, Faculty of ScienceUtrecht Institute for Pharmaceutical Sciences, Utrecht UniversityUtrechtThe Netherlands
| | - David Rosenstreich
- Department of Internal Medicine/Allergy and Immunology, Montefiore Medical CenterAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Franziska Roth‐Walter
- Comparative MedicineThe Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaUniversity of ViennaViennaAustria,Center of Pathophysiology, Infectiology and ImmunologyInstitute of Pathophysiology and Allergy Research, Medical University ViennaViennaAustria
| | - Carsten Schmidt‐Weber
- Center of Allergy & Environment (ZAUM)Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental HealthMunichGermany,German Center for Lung Research (DZL)MunichGermany
| | - Mohamed Shamji
- Immunomodulation and Tolerance Group, Imperial College London, and Allergy and Clinical ImmunologyImperial College LondonLondonUnited Kingdom
| | | | | | - Eva Untersmayr
- Center of Pathophysiology, Infectiology and ImmunologyInstitute of Pathophysiology and Allergy Research, Medical University ViennaViennaAustria
| | - Erika Jensen‐Jarolim
- Comparative MedicineThe Interuniversity Messerli Research InstituteUniversity of Veterinary Medicine ViennaMedical University of ViennaUniversity of ViennaViennaAustria,Center of Pathophysiology, Infectiology and ImmunologyInstitute of Pathophysiology and Allergy Research, Medical University ViennaViennaAustria
| | - Sophia N. Karagiannis
- St. John's Institute of DermatologySchool of Basic & Medical BiosciencesGuy's Hospital, King's College LondonLondonUnited Kindgom,Breast Cancer Now Research UnitSchool of Cancer and Pharmaceutical Sciences, King's College London, Guy's Hospital,LondonSE1 9RTUnited Kindgom
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24
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Lin YK, Zhu P, Wang WS, Sun K. Serum amyloid A, a host-derived DAMP in pregnancy? Front Immunol 2022; 13:978929. [PMID: 35990700 PMCID: PMC9390978 DOI: 10.3389/fimmu.2022.978929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Serum amyloid A (SAA) is one of the acute phase proteins released primarily from the liver in response to infection, inflammation and trauma. Emerging evidence indicates that SAA may function as a host-derived damage-associated molecular pattern (DAMP) protein to sense danger signals in pregnancy. The plasma SAA levels in maternal circulation are significantly increased in normal parturition, particularly in postpartum, as well as in gestational disorders such as premature preterm rupture of membranes, pre-eclampsia, gestational diabetes, and recurrent spontaneous abortion. It is likely that SAA acts as a non-specific DAMP molecule in response to inflammation and trauma experienced under these conditions. Notably, SAA can also be synthesized locally in virtually all gestational tissues. Within these gestational tissues, under the induction by bacterial products, pro-inflammatory cytokines and stress hormone glucocorticoids, SAA may exert tissue-specific effects as a toll-like receptor 4 (TLR4)-sensed DAMP molecule. SAA may promote parturition through stimulation of inflammatory reactions via induction of pro-inflammatory cytokines, chemokines, adhesion molecules and prostaglandins in the uterus, fetal membranes and placenta. In the fetal membranes, SAA may also facilitate membrane rupture through induction of matrix metalloproteases (MMPs)- and autophagy-mediated collagen breakdown and attenuation of lysyl oxidase-mediated collagen cross-linking. SAA synthesized in extravillous trophoblasts may promote their invasiveness into the endometrium in placentation. Here, we summarized the current understanding of SAA in pregnancy with an aim to stimulate in-depth investigation of SAA in pregnancy, which may help better understand how inflammation is initiated in gestational tissues in both normal and abnormal pregnancies.
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Affiliation(s)
- Yi-kai Lin
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Ping Zhu
- Department of Obstetrics and Gynecology, No.971 Hospital of the PLA Navy, Qingdao, China
| | - Wang-sheng Wang
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Kang Sun
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
- *Correspondence: Kang Sun,
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25
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Dorbek-Kolin E, Husso A, Niku M, Loch M, Pessa-Morikawa T, Niine T, Kaart T, Iivanainen A, Orro T. Faecal microbiota in two-week-old female dairy calves during acute cryptosporidiosis outbreak - Association with systemic inflammatory response. Res Vet Sci 2022; 151:116-127. [PMID: 35901524 DOI: 10.1016/j.rvsc.2022.07.008] [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: 03/09/2022] [Revised: 06/15/2022] [Accepted: 07/17/2022] [Indexed: 11/25/2022]
Abstract
In the present study, relationships between the intestinal microbiota and innate immunity response, acute cryptosporidiosis, and weight gain in female dairy calves were investigated. A total of 112 calves born during a natural outbreak of cryptosporidiosis on one dairy farm was included in the study. Microbiota composition was analysed by means of 16S ribosomal RNA gene amplicon sequencing from faecal samples collected during the second week of life, while the status of Cryptosporidium spp. infection was determined using immunofluorescence. Serum samples from the second week of life were colourimetrically analysed for the following markers of acute inflammation: acute-phase proteins (serum amyloid A and haptoglobin) and pro-inflammatory cytokines (interleukin-1 beta, interleukin-6, and tumour necrosis factor-alpha). Statistical analyses were performed using random forest analysis, variance-partitioning, and negative binomial regression. The faecal microbiota of the two-week old calves was composed of the phyla Firmicutes, Bacteroidetes, Proteobacteria, Fusobacteria, and Actinobacteria (in order of decreasing abundance). Microbial diversity, measured in terms of the Shannon index, increased with the age of the calves and decreased if a high count of Cryptosporidium spp. oocysts was found in the faeces. Fusobacterium was positively associated with Cryptosporidium spp. oocyst count and serum amyloid A concentration. Peptostreptococcus was positively associated with haptoglobin and serum amyloid A concentrations, and negatively associated with average daily weight gain at 9 months of age. The markers of innate immunity, in combination with age, explained 6% of the microbial variation. These results suggest that some components of the intestinal microbiota may have a long-lasting negative effect on animal growth through the stimulation of the systemic innate immune response.
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Affiliation(s)
- Elisabeth Dorbek-Kolin
- Veterinary Biomedicine and Food Hygiene, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Kreutzwaldi 62, 51006 Tartu, Estonia.
| | - Aleksi Husso
- Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, P.O. Box 66, Helsinki, Finland
| | - Mikael Niku
- Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, P.O. Box 66, Helsinki, Finland
| | - Marina Loch
- Clinical Veterinary Medicine, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Kreutzwaldi 62, 51006 Tartu, Estonia
| | - Tiina Pessa-Morikawa
- Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, P.O. Box 66, Helsinki, Finland
| | - Tarmo Niine
- Veterinary Biomedicine and Food Hygiene, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Kreutzwaldi 62, 51006 Tartu, Estonia
| | - Tanel Kaart
- Animal Breeding and Biotechnology, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Kreutzwaldi 62, 51006 Tartu, Estonia
| | - Antti Iivanainen
- Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, P.O. Box 66, Helsinki, Finland
| | - Toomas Orro
- Clinical Veterinary Medicine, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Kreutzwaldi 62, 51006 Tartu, Estonia
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26
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Vizuet-de-Rueda JC, Montero-Vargas JM, Galván-Morales MÁ, Porras-Gutiérrez-de-Velasco R, Teran LM. Current Insights on the Impact of Proteomics in Respiratory Allergies. Int J Mol Sci 2022; 23:ijms23105703. [PMID: 35628512 PMCID: PMC9144092 DOI: 10.3390/ijms23105703] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 12/11/2022] Open
Abstract
Respiratory allergies affect humans worldwide, causing extensive morbidity and mortality. They include allergic rhinitis (AR), asthma, pollen food allergy syndrome (PFAS), aspirin-exacerbated respiratory disease (AERD), and nasal polyps (NPs). The study of respiratory allergic diseases requires new technologies for early and accurate diagnosis and treatment. Omics technologies provide the tools required to investigate DNA, RNA, proteins, and other molecular determinants. These technologies include genomics, transcriptomics, proteomics, and metabolomics. However, proteomics is one of the main approaches to studying allergic disorders' pathophysiology. Proteins are used to indicate normal biological processes, pathogenic processes, or pharmacologic responses to a therapeutic intervention. In this field, the principal goal of proteomics has been to discover new proteins and use them in precision medicine. Multiple technologies have been applied to proteomics, but that most used for identifying, quantifying, and profiling proteins is mass spectrometry (MS). Over the last few years, proteomics has enabled the establishment of several proteins for diagnosing and treating respiratory allergic diseases.
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27
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Múnera M, Martínez D, Wortmann J, Zakzuk J, Keller W, Caraballo L, Puerta L. Structural and allergenic properties of the fatty acid binding protein from shrimp Litopenaeus vannamei. Allergy 2022; 77:1534-1544. [PMID: 34695231 DOI: 10.1111/all.15154] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 04/12/2021] [Accepted: 10/04/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The shrimp Litopenaeus vannamei is an important source of food allergens but its allergenic repertoire is poorly characterized. Cross-reactivity between crustacean and mites has been reported, with tropomyosin, the most relevant allergen involved. The aim of this study was to investigate the structural and immunological properties of a recombinant Fatty Acid Binding Protein (FABP) family from L. vannamei (LvFABP). METHODS ELISA, skin prick test (SPT) and basophil activation assays were performed to determine IgE reactivity and allergenic activity of LvFABP. LC-MS/MS and Circular Dichroism experiments were done for structural analysis. B-cell epitope mapping with overlapping peptides, and cross-inhibition studies using human sera were done to identify antigenic regions and cross-reactivity. RESULTS The recombinant LvFABP bound serum IgE from 27% of 36 shrimp allergic patients and showed allergenic activity when tested for basophil activation and SPT in a selected number of them. CD-spectroscopy of LvFABP revealed that the protein is folded with a secondary structure composed of mainly β-strands and a smaller fraction of α helices. This is consistent with molecular modelling results, which exhibit a typical β barrel fold with two α-helices and ten β-strands. Epitope mapping identified two IgE-binding antigenic regions and inhibition assays found high cross-reactivity between LvFABP and Blo t 13, mediated by the antigenic region involving amino acids 54 to 72. CONCLUSIONS Our results show that LvFABP is a shrimp allergen that cross reacts with the house dust mite allergen Blo t 13 and has allergenic activity, which suggest that it could be clinically relevant in case of shellfish allergy. This new allergen, named Lit v 13, will also help to understand basic mechanisms of sensitization to shrimp.
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Affiliation(s)
- Marlon Múnera
- Institute for Immunological Research University of Cartagena Cartagena Colombia
| | - Dalgys Martínez
- Institute for Immunological Research University of Cartagena Cartagena Colombia
| | - Judith Wortmann
- Institute of Molecular Biosciences, BioTechMed Graz University of Graz Graz Austria
| | - Josefina Zakzuk
- Institute for Immunological Research University of Cartagena Cartagena Colombia
| | - Walter Keller
- Institute of Molecular Biosciences, BioTechMed Graz University of Graz Graz Austria
| | - Luis Caraballo
- Institute for Immunological Research University of Cartagena Cartagena Colombia
| | - Leonardo Puerta
- Institute for Immunological Research University of Cartagena Cartagena Colombia
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28
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Raza SHA, Liang C, Alshammari AM, Aloufi BH, Gui L, Khan R, Zan L. Genetic variants in the serum amyloid A2 (SAA2) gene as a potential marker for milk production traits in Chinese Holstein cows. Vet Med Sci 2022; 8:1835-1840. [PMID: 35470977 PMCID: PMC9297766 DOI: 10.1002/vms3.796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Background This study was conducted to detect potential polymorphisms of the serum amyloid A2 (SAA2) gene and explore their relationships with milk production traits in Chinese Holstein cows. Objectives: This study used sequencing technology conducted in 532 Chinese Holstein cows. Methods Three single nucleotide polymorphisms (SNPs) were identified within intron 1, named g.14061A>G, g.14072G>C and g.14819C>T. Eight estimated haplotypes were identified, of which three major haplotypes had a frequency of Hap3 (‐ACC‐), Hap5 (‐GCC‐) and Hap2 (‐AGT‐), with 17.9%, 12.30% and 8.10%, respectively. Results The association analysis of single markers (g.14061A>G and g.14819C>T) and combined genotypes (Hap1/5) revealed prominent effects on milk production traits in Chinese Holstein cows (p < 0.05). Conclusions Our results suggest that the SAA2 gene is associated with economic traits in Chinese Holstein cows and may be used as candidate gene for marker‐assisted selection and management in breeding programs.
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Affiliation(s)
- Sayed Haidar Abbas Raza
- State Key Laboratory of Animal Genetics Breeding & Reproduction, College of Animal Science and TechnologyNorthwest A&F UniversityYanglingP. R. China
- National Beef Cattle Improvement CenterNorthwest A&F UniversityYanglingP. R. China
| | - Chengcheng Liang
- State Key Laboratory of Animal Genetics Breeding & Reproduction, College of Animal Science and TechnologyNorthwest A&F UniversityYanglingP. R. China
- National Beef Cattle Improvement CenterNorthwest A&F UniversityYanglingP. R. China
| | | | - Bandar H. Aloufi
- Faculty of Science, Biology DepartmentUniversity of HailHailSaudi Arabia
| | - Linsheng Gui
- State Key Laboratory of Plateau Ecology and AgricultureQinghai UniversityXiningP. R. China
| | - Rajwali Khan
- Department of Livestock Management, Breeding and GeneticsThe University of AgriculturePeshawarPakistan
| | - Linsen Zan
- State Key Laboratory of Animal Genetics Breeding & Reproduction, College of Animal Science and TechnologyNorthwest A&F UniversityYanglingP. R. China
- National Beef Cattle Improvement CenterNorthwest A&F UniversityYanglingP. R. China
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29
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Ferreira F, Mueller GA, Gilles S, Wills-Karp M. Editorial: Activation of Innate Immunity by Allergens and Allergenic Sources. FRONTIERS IN ALLERGY 2022; 2:800929. [PMID: 35386983 PMCID: PMC8974755 DOI: 10.3389/falgy.2021.800929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Fatima Ferreira
- Department of Biosciences, Paris-Lodron University of Salzburg, Salzburg, Austria
| | - Geoffrey A Mueller
- Department of Health and Human Services, Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, United States
| | - Stefanie Gilles
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany.,Institute of Environmental Medicine, Helmholtz Center Munich-Research for Environmental Health, Augsburg, Germany
| | - Marsha Wills-Karp
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
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30
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Zhuang Y, Wang L, Guo J, Sun D, Wang Y, Liu W, Xu HE, Zhang C. Molecular recognition of formylpeptides and diverse agonists by the formylpeptide receptors FPR1 and FPR2. Nat Commun 2022; 13:1054. [PMID: 35217703 PMCID: PMC8881469 DOI: 10.1038/s41467-022-28586-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/31/2022] [Indexed: 12/21/2022] Open
Abstract
The formylpeptide receptors (FPRs) mediate pattern recognition of formylated peptides derived from invading pathogens or mitochondria from dead host cells. They can also sense other structurally distinct native peptides and even lipid mediators to either promote or resolve inflammation. Pharmacological targeting of FPRs represents a novel therapeutic approach in treating inflammatory diseases. However, the molecular mechanisms underlying FPR ligand recognition are elusive. We report cryo-EM structures of Gi-coupled FPR1 and FPR2 bound to a formylpeptide and Gi-coupled FPR2 bound to two synthetic peptide and small-molecule agonists. Together with mutagenesis data, our structures reveal the molecular mechanism of formylpeptide recognition by FPRs and structural variations of FPR1 and FPR2 leading to their different ligand preferences. Structural analysis also suggests that diverse FPR agonists sample a conserved activation chamber at the bottom of ligand-binding pockets to activate FPRs. Our results provide a basis for rational drug design on FPRs.
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Affiliation(s)
- Youwen Zhuang
- The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, China
| | - Lei Wang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Jia Guo
- The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Dapeng Sun
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Yue Wang
- The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Weiyi Liu
- The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - H Eric Xu
- The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, China. .,University of Chinese Academy of Sciences, 100049, Beijing, China.
| | - Cheng Zhang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
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31
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Guo X, Zhang W, Du J, Tao R, Dong W, Huang J, Zhang J, Pan Z, Zhou W, Zhu X, Liu H, Liu F. Acute-Phase Serum Amyloid A May Predict Microvascular Invasion and Early Tumor Recurrence in Patients with Hepatitis B Virus-Related Hepatocellular Carcinoma Undergoing Liver Resection. J INVEST SURG 2022; 35:1368-1376. [PMID: 35143736 DOI: 10.1080/08941939.2022.2035858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To elucidate the impact of acute-phase protein serum amyloid A (aSAA) on microvascular invasion (MVI) and early recurrence in hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC). METHODS HBV-related HCC patients (n = 192) undergoing liver resection were included in the study. The protein levels of aSAA were analyzed by immunohistochemical staining in 172 tumor specimens, and further detected via western blotting in HCC and their corresponding portal vein tumor thrombus (PVTT) (n = 20). Cox and logit regression analysis was performed. Exploratory subgroup analysis was used to balance the potential confounders. RESULTS HBV-related HCC patients with high aSAA levels tended to have high HBV-DNA loads. Logit and Cox regression analyses revealed high expression of aSAA is an independent risk factor not only for MVI (OR 5.384, 95% CI 2.286-13.301, P < 0.001) but also for early recurrence (HR 6.040, 95% CI 1.970-18.540, P = 0.002), overall recurrence (HR 3.720, 95% CI 2.140-6.450, P < 0.001), and overall survival (HR 4.15, 95% CI 2.380-7.230, P < 0.001). Subgroup analysis showed that the effects of aSAA were consistent across all subgroups examined. Additionally, the aSAA protein level was significantly higher in PVTT than that in its corresponding tumor specimen. A high HBV-DNA level and large tumor size were the independent risk factors for early HCC recurrence in patients with high levels of aSAA. CONCLUSIONS High expression of aSAA was an independent risk factor for MVI and early tumor recurrence in HBV-related HCC patients after liver resection. The aSAA protein level could thus be a promising biomarker for predicting MVI and early recurrence in these patients.
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Affiliation(s)
- Xinggang Guo
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Wenli Zhang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Jin Du
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Rongsuo Tao
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Wei Dong
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Jian Huang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Jinmin Zhang
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Zeya Pan
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Weiping Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Xiuli Zhu
- Department of Gastroenterology, Anhui Provincial Hospital, University of Science and Technology of China, Hefei, China
| | - Hui Liu
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
| | - Fuchen Liu
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Naval Medical University, Shanghai, China
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32
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Virtanen T. Inhalant Mammal-Derived Lipocalin Allergens and the Innate Immunity. FRONTIERS IN ALLERGY 2022; 2:824736. [PMID: 35387007 PMCID: PMC8974866 DOI: 10.3389/falgy.2021.824736] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/30/2021] [Indexed: 12/03/2022] Open
Abstract
A major part of important mammalian respiratory allergens belongs to the lipocalin family of proteins. By this time, 19 respiratory mammalian lipocalin allergens have been registered in the WHO/IUIS Allergen Nomenclature Database. Originally, lipocalins, small extracellular proteins (molecular mass ca. 20 kDa), were characterized as transport proteins but they are currently known to exert a variety of biological functions. The three-dimensional structure of lipocalins is well-preserved, and lipocalin allergens can exhibit high amino acid identities, in several cases more than 50%. Lipocalins contain an internal ligand-binding site where they can harbor small principally hydrophobic molecules. Another characteristic feature is their capacity to bind to specific cell-surface receptors. In all, the physicochemical properties of lipocalin allergens do not offer any straightforward explanations for their allergenicity. Allergic sensitization begins at epithelial barriers where diverse insults through pattern recognition receptors awaken innate immunity. This front-line response is manifested by epithelial barrier-associated cytokines which together with other components of immunity can initiate the sensitization process. In the following, the crucial factor in allergic sensitization is interleukin (IL)-4 which is needed for stabilizing and promoting the type 2 immune response. The source for IL-4 has been searched widely. Candidates for it may be non-professional antigen-presenting cells, such as basophils or mast cells, as well as CD4+ T cells. The synthesis of IL-4 by CD4+ T cells requires T cell receptor engagement, i.e., the recognition of allergen peptides, which also provides the specificity for sensitization. Lipocalin and innate immunity-associated cell-surface receptors are implicated in facilitating the access of lipocalin allergens into the immune system. However, the significance of this for allergic sensitization is unclear, as the recognition by these receptors has been found to produce conflicting results. As to potential adjuvants associated with mammalian lipocalin allergens, the hydrophobic ligands transported by lipocalins have not been reported to enhance sensitization while it is justified to suppose that lipopolysaccharide plays a role in it. Taken together, type 2 immunity to lipocalin allergens appears to be a harmful immune response resulting from a combination of signals involving both the innate and adaptive immunities.
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Affiliation(s)
- Tuomas Virtanen
- Department of Clinical Microbiology, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
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33
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Kang N, Song WJ. Discovering Biomarkers of Neutrophilic Asthma: A Clinician's Perspective. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2022; 14:1-4. [PMID: 34983102 PMCID: PMC8724821 DOI: 10.4168/aair.2022.14.1.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/19/2022]
Affiliation(s)
- Noeul Kang
- Division of Allergy, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Woo-Jung Song
- Department of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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34
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Bich TCT, Quoc QL, Choi Y, Yang EM, Trinh HKT, Shin YS, Park HS. Serum Amyloid A1: A Biomarker for Neutrophilic Airway Inflammation in Adult Asthmatic Patients. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2022; 14:40-58. [PMID: 34983106 PMCID: PMC8724823 DOI: 10.4168/aair.2022.14.1.40] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/17/2021] [Accepted: 09/29/2021] [Indexed: 12/19/2022]
Abstract
Purpose We evaluated the role of serum amyloid A1 (SAA1) in the pathogenesis of airway inflammation according to the phenotype of asthma. Methods One hundred twenty-two asthmatic patients and 60 healthy control subjects (HCs) were enrolled to measure SAA1 levels. The production of SAA1 from airway epithelial cells (AECs) and its effects on macrophages and neutrophils were investigated in vitro and in vivo. Results The SAA1 levels were significantly higher in sera of asthmatic patients than in those of HCs (P = 0.014); among asthmatics, patients with neutrophilic asthma (NA) showed significantly higher SAA1 levels than those with non-NA (P < 0.001). In vitro, polyinosinic:polycytidylic acid (Poly I-C) treatment markedly enhanced the production of SAA1 from AECs, which was further augmented by neutrophils; SAA1 could induce the production of interleukin (IL)-6, IL-8, and S100 calcium-binding protein A9 from AECs. Additionally, SAA1 activated neutrophils and macrophages isolated from peripheral blood of asthmatics, releasing neutrophil extracellular traps (NETs) and secreting proinflammatory cytokines presenting M1 phenotype, respectively. In ovalbumin-induced asthma mice, Poly I-C treatment significantly increased SAA1 levels as well as IL-17A/interferon-gamma/IL-33 levels in bronchoalveolar lavage fluid (BALF), leading to airway hyperresponsiveness and inflammation. The highest levels of SAA1 and neutrophilia were noted in the BALF and sera of the NA mouse model, followed by the mixed granulocytic asthma (MA) model. Especially, SAA1 induced IL-17/retinoic acid receptor-related orphan receptor γt expression from activated CD4+ T lymphocytes in asthmatic mice. Conclusions The results show that SAA1 could induce neutrophilic airway inflammation by activating neutrophils along with NET formation, M1 macrophages, and Th2/Th17 predominant cells, contributing to the phenotype of NA or MA.
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Affiliation(s)
- Tra Cao Thi Bich
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.,Department of Biomedical Science, Ajou University School of Medicine, Suwon, Korea
| | - Quang Luu Quoc
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.,Department of Biomedical Science, Ajou University School of Medicine, Suwon, Korea
| | - Youngwoo Choi
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Eun-Mi Yang
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | | | - Yoo Seob Shin
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.
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35
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Lechner A, Henkel FDR, Hartung F, Bohnacker S, Alessandrini F, Gubernatorova EO, Drutskaya MS, Angioni C, Schreiber Y, Haimerl P, Ge Y, Thomas D, Kabat AM, Pearce EJ, Ohnmacht C, Nedospasov SA, Murray PJ, Chaker AM, Schmidt-Weber CB, Esser-von Bieren J. Macrophages acquire a TNF-dependent inflammatory memory in allergic asthma. J Allergy Clin Immunol 2021; 149:2078-2090. [PMID: 34974067 DOI: 10.1016/j.jaci.2021.11.026] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 10/18/2021] [Accepted: 11/26/2021] [Indexed: 01/30/2023]
Abstract
BACKGROUND Infectious agents can reprogram or "train" macrophages and their progenitors to respond more readily to subsequent insults. However, whether such an inflammatory memory exists in type-2 inflammatory conditions such as allergic asthma was not known. OBJECTIVE To decipher macrophage trained immunity in allergic asthma. METHODS We used a combination of clinical sampling of house dust mite (HDM)-allergic patients, HDM-induced allergic airway inflammation (AAI) in mice and an in vitro training set-up to analyze persistent changes in macrophage eicosanoid-, cytokine- and chemokine production as well as underlying metabolic and epigenetic mechanisms. Transcriptional and metabolic profiles of patient-derived and in vitro trained macrophages were assessed by RNA sequencing or Seahorse and LC-MS/MS analysis, respectively. RESULTS We found that macrophages differentiated from bone marrow- or blood monocyte- progenitors of HDM-allergic mice or asthma patients show inflammatory transcriptional reprogramming and excessive mediator (TNF-α, CCL17, leukotriene, PGE2, IL-6) responses upon stimulation. Macrophages from HDM-allergic mice initially exhibited a type-2 imprint, which shifted towards a classical inflammatory training over time. HDM-induced AAI elicited a metabolically activated macrophage phenotype, producing high amounts of 2-hydroxyglutarate (2-HG). HDM-induced macrophage training in vitro was mediated by a formyl-peptide receptor 2 (FPR2)-TNF-2-HG-PGE2/EP2-axis, resulting in an M2-like macrophage phenotype with high CCL17 production. TNF blockade by etanercept or genetic ablation of Tnf in myeloid cells prevented the inflammatory imprinting of bone marrow-derived macrophages from HDM-allergic mice. CONCLUSION Allergen-triggered inflammation drives a TNF-dependent innate memory, which may perpetuate and exacerbate chronic type-2 airway inflammation and thus represents a target for asthma therapy.
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Affiliation(s)
- Antonie Lechner
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Fiona D R Henkel
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Franziska Hartung
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Sina Bohnacker
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Francesca Alessandrini
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Ekaterina O Gubernatorova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Moscow, and Sirius University of Science and Technology, Sochi, Russia
| | - Marina S Drutskaya
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Moscow, and Sirius University of Science and Technology, Sochi, Russia
| | - Carlo Angioni
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Yannick Schreiber
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Frankfurt am Main, Germany
| | - Pascal Haimerl
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Yan Ge
- Department of Immunobiology, Hospital Carl Gustav Carus, University of Dresden, Dresden, Germany
| | - Dominique Thomas
- Institute of Clinical Pharmacology, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | - Agnieszka M Kabat
- Max Planck Institute for Immunobiology and Epigenetics, Freiburg, Germany
| | - Edward J Pearce
- Max Planck Institute for Immunobiology and Epigenetics, Freiburg, Germany
| | - Caspar Ohnmacht
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Sergei A Nedospasov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Moscow, and Sirius University of Science and Technology, Sochi, Russia
| | | | - Adam M Chaker
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany; Department of Otorhinolaryngology and Head and Neck Surgery, TUM Medical School, Technical University of Munich, Munich, Germany
| | - Carsten B Schmidt-Weber
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany
| | - Julia Esser-von Bieren
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, Munich, Germany.
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36
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Agache I, Eguiluz‐Gracia I, Cojanu C, Laculiceanu A, Giacco S, Zemelka‐Wiacek M, Kosowska A, Akdis CA, Jutel M. Advances and highlights in asthma in 2021. Allergy 2021; 76:3390-3407. [PMID: 34392546 DOI: 10.1111/all.15054] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/09/2021] [Indexed: 12/12/2022]
Abstract
Last year brought a significant advance in asthma management, unyielding to the pressure of the pandemics. Novel key findings in asthma pathogenesis focus on the resident cell compartment, epigenetics and the innate immune system. The precision immunology unbiased approach was supplemented with novel tools and greatly facilitated by the use of artificial intelligence. Several randomised clinical trials and good quality real-world evidence shed new light on asthma treatment and supported the revision of several asthma guidelines (GINA, Expert Panel Report 3, ERS/ATS guidelines on severe asthma) and the conception of new ones (EAACI Guidelines for the use of biologicals in severe asthma). Integrating asthma management within the broader context of Planetary Health has been put forward. In this review, recently published articles and clinical trials are summarised and discussed with the goal to provide clinicians and researchers with a concise update on asthma research from a translational perspective.
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Affiliation(s)
- Ioana Agache
- Faculty of Medicine Transylvania University Brasov Romania
| | - Ibon Eguiluz‐Gracia
- Allergy Unit IBIMA‐Regional University Hospital of MalagaUMA, RETICS ARADyALBIONAND Malaga Spain
| | | | | | - Stefano Giacco
- Department of Medical Sciences and Public Health University of Cagliari Cagliari Italy
| | | | - Anna Kosowska
- Department of Clinical Immunology Wroclaw Medical University Wroclaw Poland
- All‐MED Medical Research Institute Wroclaw Poland
| | - Cezmi A. Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
| | - Marek Jutel
- Department of Clinical Immunology Wroclaw Medical University Wroclaw Poland
- All‐MED Medical Research Institute Wroclaw Poland
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Foo ACY, Mueller GA. Abundance and Stability as Common Properties of Allergens. FRONTIERS IN ALLERGY 2021; 2:769728. [PMID: 35386965 PMCID: PMC8974735 DOI: 10.3389/falgy.2021.769728] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/04/2021] [Indexed: 01/06/2023] Open
Abstract
There have been many attempts to identify common biophysical properties which differentiate allergens from their non-immunogenic counterparts. This review will focus on recent studies which examine two such factors: abundance and stability. Anecdotal accounts have speculated that the elevated abundance of potential allergens would increase the likelihood of human exposure and thus the probability of sensitization. Similarly, the stability of potential allergens dictates its ability to remain a viable immunogen during the transfer from the source to humans. This stability could also increase the resilience of potential allergens to both gastric and endosomal degradation, further skewing the immune system toward allergy. Statistical analyses confirm both abundance and stability as common properties of allergens, while epidemiological surveys show a correlation between exposure levels (abundance) and allergic disease. Additional studies show that changes in protein stability can predictably alter gastric/endosomal processing and immunogenicity, providing a mechanistic link between stability and allergenicity. However, notable exceptions exist to both hypotheses which highlight the multifaceted nature of immunological sensitization, and further inform our understanding of some of these other factors and their contribution to allergic disease.
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Affiliation(s)
| | - Geoffrey A. Mueller
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, Durham, NC, United States
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38
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Zhu J, Li L, Ding J, Huang J, Shao A, Tang B. The Role of Formyl Peptide Receptors in Neurological Diseases via Regulating Inflammation. Front Cell Neurosci 2021; 15:753832. [PMID: 34650406 PMCID: PMC8510628 DOI: 10.3389/fncel.2021.753832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/02/2021] [Indexed: 01/02/2023] Open
Abstract
Formyl peptide receptors (FPRs) are a group of G protein-coupled cell surface receptors that play important roles in host defense and inflammation. Owing to the ubiquitous expression of FPRs throughout different cell types and since they interact with structurally diverse chemotactic agonists, they have a dual function in inflammatory processes, depending on binding with different ligands so that accelerate or inhibit key intracellular kinase-based regulatory pathways. Neuroinflammation is closely associated with the pathogenesis of neurodegenerative diseases, neurogenic tumors and cerebrovascular diseases. From recent studies, it is clear that FPRs are important biomarkers for neurological diseases as they regulate inflammatory responses by monitoring glial activation, accelerating neural differentiation, regulating angiogenesis, and controlling blood brain barrier (BBB) permeability, thereby affecting neurological disease progression. Given the complex mechanisms of neurological diseases and the difficulty of healing, we are eager to find new and effective therapeutic targets. Here, we review recent research about various mechanisms of the effects generated after FPR binding to different ligands, role of FPRs in neuroinflammation as well as the development and prognosis of neurological diseases. We summarize that the FPR family has dual inflammatory functional properties in central nervous system. Emphasizing that FPR2 acts as a key molecule that mediates the active resolution of inflammation, which binds with corresponding receptors to reduce the expression and activation of pro-inflammatory composition, govern the transport of immune cells to inflammatory tissues, and restore the integrity of the BBB. Concurrently, FPR1 is essentially related to angiogenesis, cell proliferation and neurogenesis. Thus, treatment with FPRs-modulation may be effective for neurological diseases.
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Affiliation(s)
- Jiahui Zhu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lingfei Li
- Department of Neurology, The Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiao Ding
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinyu Huang
- Department of Cardiology, The Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Anwen Shao
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Bo Tang
- Department of Neurology, The Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
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39
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Ciregia F, Nys G, Cobraiville G, Badot V, Di Romana S, Sidiras P, Sokolova T, Durez P, Fillet M, Malaise MG, de Seny D. A Cross-Sectional and Longitudinal Study to Define Alarmins and A-SAA Variants as Companion Markers in Early Rheumatoid Arthritis. Front Immunol 2021; 12:638814. [PMID: 34489924 PMCID: PMC8418532 DOI: 10.3389/fimmu.2021.638814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 08/04/2021] [Indexed: 11/24/2022] Open
Abstract
Nowadays, in the study of rheumatoid arthritis (RA), more and more interest is directed towards an earlier effective therapeutic intervention and the determination of companion markers for predicting response to therapy with the goal to prevent progressive joint damage, deformities, and functional disability. With the present work, we aimed at quantifying in a cohort of early RA (ERA) patients naïve to DMARD therapy, proteins whose increase was previously found associated with RA: serum amyloid A (A-SAA) and alarmins. Five A-SAA variants (SAA1α, SAA1β, SAA1γ, SAA2α, and SAA2β) but also S100A8 and S100A9 proteins were simultaneously quantified in plasma applying a method based on single targeted bottom-up proteomics LC-MS/MS. First, we compared their expression between ERA (n = 100) and healthy subjects (n = 100), then we focused on their trend by monitoring ERA patients naïve to DMARD treatment, 1 year after starting therapy. Only SAA1α and SAA2α levels were increased in ERA patients, and SAA2α appears to mostly mediate the pathological role of A-SAA. Levels of these variants, together with SAA1β, only decreased under biologic DMARD treatment but not under methotrexate monotherapy. This study highlights the importance to better understand the modulation of expression of these variants in ERA in order to subsequently better characterize their biological function. On the other hand, alarmin expression increased in ERA compared to controls but remained elevated after 12 months of methotrexate or biologic treatment. The work overcomes the concept of considering these proteins as biomarkers for diagnosis, demonstrating that SAA1α, SAA1β, and SAA2α variants but also S100A8 and S100A9 do not respond to all early treatment in ERA and should be rather considered as companion markers useful to improve the follow-up of treatment response and remission state. Moreover, it suggests that earlier use of biologics in addition to methotrexate may be worth considering.
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Affiliation(s)
- Federica Ciregia
- Laboratory of Rheumatology, University of Liège, Centre Hospitalier Universitaire (CHU) de Liège, Liège, Belgium
| | - Gwenaël Nys
- Laboratory for the Analysis of Medicines, Centre Interdisciplinaire De Recherche Sur Le Médicament (CIRM), Department of Pharmacy, University of Liège, Liège, Belgium
| | - Gaël Cobraiville
- Laboratory of Rheumatology, University of Liège, Centre Hospitalier Universitaire (CHU) de Liège, Liège, Belgium
| | - Valérie Badot
- Department of Rheumatology, Centre Hospitalier Universitaire (CHU) Brugmann, Bruxelles, Belgium
| | - Silvana Di Romana
- Department of Rheumatology, Centre Hospitalier Universitaire (CHU) Saint–Pierre, Bruxelles, Belgium
| | - Paschalis Sidiras
- Department of Rheumatology, Hôpital Erasme, Université Libre de Bruxelles, Bruxelles, Belgium
| | - Tatiana Sokolova
- Department of Rheumatology, Cliniques Universitaires Saint–Luc, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Bruxelles, Belgium
| | - Patrick Durez
- Department of Rheumatology, Cliniques Universitaires Saint–Luc, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, Bruxelles, Belgium
| | - Marianne Fillet
- Laboratory for the Analysis of Medicines, Centre Interdisciplinaire De Recherche Sur Le Médicament (CIRM), Department of Pharmacy, University of Liège, Liège, Belgium
| | - Michel G. Malaise
- Laboratory of Rheumatology, University of Liège, Centre Hospitalier Universitaire (CHU) de Liège, Liège, Belgium
| | - Dominique de Seny
- Laboratory of Rheumatology, University of Liège, Centre Hospitalier Universitaire (CHU) de Liège, Liège, Belgium
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40
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Chruszcz M, Chew FT, Hoffmann‐Sommergruber K, Hurlburt BK, Mueller GA, Pomés A, Rouvinen J, Villalba M, Wöhrl BM, Breiteneder H. Allergens and their associated small molecule ligands-their dual role in sensitization. Allergy 2021; 76:2367-2382. [PMID: 33866585 PMCID: PMC8286345 DOI: 10.1111/all.14861] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 04/07/2021] [Accepted: 04/10/2021] [Indexed: 02/06/2023]
Abstract
Many allergens feature hydrophobic cavities that allow the binding of primarily hydrophobic small‐molecule ligands. Ligand‐binding specificities can be strict or promiscuous. Serum albumins from mammals and birds can assume multiple conformations that facilitate the binding of a broad spectrum of compounds. Pollen and plant food allergens of the family 10 of pathogenesis‐related proteins bind a variety of small molecules such as glycosylated flavonoid derivatives, flavonoids, cytokinins, and steroids in vitro. However, their natural ligand binding was reported to be highly specific. Insect and mammalian lipocalins transport odorants, pheromones, catecholamines, and fatty acids with a similar level of specificity, while the food allergen β‐lactoglobulin from cow's milk is notably more promiscuous. Non‐specific lipid transfer proteins from pollen and plant foods bind a wide variety of lipids, from phospholipids to fatty acids, as well as sterols and prostaglandin B2, aided by the high plasticity and flexibility displayed by their lipid‐binding cavities. Ligands increase the stability of allergens to thermal and/or proteolytic degradation. They can also act as immunomodulatory agents that favor a Th2 polarization. In summary, ligand‐binding allergens expose the immune system to a variety of biologically active compounds whose impact on the sensitization process has not been well studied thus far.
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Affiliation(s)
- Maksymilian Chruszcz
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC USA
| | - Fook Tim Chew
- Department of Biological Sciences National University of Singapore Singapore
| | - Karin Hoffmann‐Sommergruber
- Division of Medical Biotechnology Department of Pathophysiology and Allergy Research Medical University of Vienna Vienna Austria
| | - Barry K. Hurlburt
- Agricultural Research Service Southern Regional Research Center US Department of Agriculture New Orleans LA USA
| | - Geoffrey A. Mueller
- National Institute of Environmental Health Sciences National Institutes of Health Research Triangle Park NC USA
| | - Anna Pomés
- Indoor Biotechnologies, Inc. Charlottesville VA USA
| | - Juha Rouvinen
- Department of Chemistry University of Eastern Finland Joensuu Finland
| | - Mayte Villalba
- Department of Biochemistry and Molecular Biology Universidad Complutense de Madrid Madrid Spain
| | | | - Heimo Breiteneder
- Division of Medical Biotechnology Department of Pathophysiology and Allergy Research Medical University of Vienna Vienna Austria
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41
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Mayer KA, Smole U, Zhu C, Derdak S, Minervina AA, Salnikova M, Witzeneder N, Christamentl A, Boucheron N, Waidhofer-Söllner P, Trauner M, Hoermann G, Schmetterer KG, Mamedov IZ, Bilban M, Ellmeier W, Pickl WF, Gualdoni GA, Zlabinger GJ. The energy sensor AMPK orchestrates metabolic and translational adaptation in expanding T helper cells. FASEB J 2021; 35:e21217. [PMID: 33715236 PMCID: PMC8252394 DOI: 10.1096/fj.202001763rr] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 11/04/2020] [Accepted: 11/10/2020] [Indexed: 12/21/2022]
Abstract
The importance of cellular metabolic adaptation in inducing robust T cell responses is well established. However, the mechanism by which T cells link information regarding nutrient supply to clonal expansion and effector function is still enigmatic. Herein, we report that the metabolic sensor adenosine monophosphate-activated protein kinase (AMPK) is a critical link between cellular energy demand and translational activity and, thus, orchestrates optimal expansion of T cells in vivo. AMPK deficiency did not affect T cell fate decision, activation, or T effector cell generation; however, the magnitude of T cell responses in murine in vivo models of T cell activation was markedly reduced. This impairment was global, as all T helper cell subsets were similarly sensitive to loss of AMPK which resulted in reduced T cell accumulation in peripheral organs and reduced disease severity in pathophysiologically as diverse models as T cell transfer colitis and allergic airway inflammation. T cell receptor repertoire analysis confirmed similar clonotype frequencies in different lymphoid organs, thereby supporting the concept of a quantitative impairment in clonal expansion rather than a skewed qualitative immune response. In line with these findings, in-depth metabolic analysis revealed a decrease in T cell oxidative metabolism, and gene set enrichment analysis indicated a major reduction in ribosomal biogenesis and mRNA translation in AMPK-deficient T cells. We, thus, provide evidence that through its interference with these delicate processes, AMPK orchestrates the quantitative, but not the qualitative, manifestation of primary T cell responses in vivo.
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Affiliation(s)
- Katharina A Mayer
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Ursula Smole
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Ci Zhu
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.,Hans Popper Laboratory of Molecular Hepatology, Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Sophia Derdak
- Core Facilities, Medical University of Vienna, Vienna, Austria
| | - Anastasia A Minervina
- Department of Genomics of Adaptive Immunity, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - Maria Salnikova
- Department of Genomics of Adaptive Immunity, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - Nadine Witzeneder
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria.,Division of Hematology and Hemostaseology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Anna Christamentl
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Nicole Boucheron
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Petra Waidhofer-Söllner
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Michael Trauner
- Hans Popper Laboratory of Molecular Hepatology, Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Gregor Hoermann
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria.,MLL Munich Leukemia Laboratory, Munich, Germany
| | - Klaus G Schmetterer
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Ilgar Z Mamedov
- Department of Genomics of Adaptive Immunity, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia.,Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Martin Bilban
- Core Facilities, Medical University of Vienna, Vienna, Austria.,Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Wilfried Ellmeier
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Winfried F Pickl
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Guido A Gualdoni
- Division of Nephrology and Dialysis, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Gerhard J Zlabinger
- Institute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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42
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Koenig JFE, Grydziuszko E, Jordana M. First contact: Serum amyloid A and pattern recognition in Th2 immunity. Allergy 2021; 76:2309-2311. [PMID: 33590523 DOI: 10.1111/all.14778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/15/2021] [Accepted: 02/12/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Joshua F. E. Koenig
- Department of Medicine McMaster Immunology Research Centre (MIRC) McMaster University Hamilton ON Canada
| | - Emily Grydziuszko
- Department of Medicine McMaster Immunology Research Centre (MIRC) McMaster University Hamilton ON Canada
| | - Manel Jordana
- Department of Medicine McMaster Immunology Research Centre (MIRC) McMaster University Hamilton ON Canada
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43
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Noel JC, Berin MC. Role of innate immunity and myeloid cells in susceptibility to allergic disease. Ann N Y Acad Sci 2021; 1499:42-53. [PMID: 34159612 DOI: 10.1111/nyas.14654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 12/15/2022]
Abstract
Allergic diseases, including asthma, food allergy, eczema, and allergic rhinitis, are common diseases increasing in prevalence. Allergy, a failure of immune tolerance to innocuous environmental allergens, is characterized by allergen-specific immune responses, including IgE antibodies and T helper and T follicular helper cells producing type 2 cytokines. Despite the central role of adaptive immunity in pathophysiology of allergy, there is a growing body of evidence indicating an important role for the innate immune system in allergic disease. In this review, we focus on epithelial-mononuclear phagocyte communication in the control of allergy and tolerance. We discuss studies on early life environmental exposures and allergy susceptibility, and the evidence for innate training of mononuclear phagocytes as the mechanistic link between exposure and health or disease.
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Affiliation(s)
- Justine C Noel
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - M Cecilia Berin
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York
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44
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Abouelasrar Salama S, Gouwy M, Van Damme J, Struyf S. The turning away of serum amyloid A biological activities and receptor usage. Immunology 2021; 163:115-127. [PMID: 33315264 PMCID: PMC8114209 DOI: 10.1111/imm.13295] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/24/2020] [Accepted: 12/04/2020] [Indexed: 12/21/2022] Open
Abstract
Serum amyloid A (SAA) is an acute-phase protein (APP) to which multiple immunological functions have been attributed. Regardless, the true biological role of SAA remains poorly understood. SAA is remarkably conserved in mammalian evolution, thereby suggesting an important biological function. Since its discovery in the 1970s, the majority of researchers have investigated SAA using recombinant forms made available through bacterial expression. Nevertheless, recent studies indicate that these recombinant forms of SAA are unreliable. Indeed, commercial SAA variants have been shown to be contaminated with bacterial products including lipopolysaccharides and lipoproteins. As such, biological activities and receptor usage (TLR2, TLR4) revealed through the use of commercial SAA variants may not reflect the inherent nature of this APP. Within this review, we discuss the biological effects of SAA that have been demonstrated through more solid experimental approaches. SAA takes part in the innate immune response via the recruitment of leucocytes and executes, through pathogen recognition, antimicrobial activity. Knockout animal models implicate SAA in a range of functions, such as regulation of T-cell-mediated responses and monopoiesis. Moreover, through its structural motifs, not only does SAA function as an extracellular matrix protein, but it also binds extracellular matrix proteins. Finally, we here also provide an overview of definite SAA receptor-mediated functions and highlight those that are yet to be validated. The role of FPR2 in SAA-mediated leucocyte recruitment has been confirmed; nevertheless, SAA has been linked to a range of other receptors including CD36, SR-BI/II, RAGE and P2RX7.
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Affiliation(s)
- Sara Abouelasrar Salama
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium
| | - Mieke Gouwy
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium
| | - Jo Van Damme
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium
| | - Sofie Struyf
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium
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45
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Abstract
Odors may be pleasant or unpleasant and in practice, pleasant odors are attractive while unpleasant odors are repellent. However, an odor that is noxious to one species may be attractive to another. Plants, predators, and pathogens may enhance their transmission by manipulating these signals. This may be especially significant when odors attract arthropod disease vectors. Odor detection may also be important in small prey species for evasion of macropredators such as large carnivores. Conversely, pleasant odors may identify family members, parents, or sexual partners. They may also generate signals of good health or fitness and contribute to the process of mate selection. In this review, we seek to integrate these odor-driven processes into a coherent pattern of behaviors that serve to complement the innate and adaptive immune systems. It may be considered the 'behavioral immune system'.
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46
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Purification and characterisation of the dimeric group 12 allergen from Blomia tropicalis heterologously expressed by Escherichia coli Top10F´. Mol Biol Rep 2021; 48:3405-3416. [PMID: 33914278 DOI: 10.1007/s11033-021-06361-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 04/16/2021] [Indexed: 10/21/2022]
Abstract
Successful research in the wide-ranging field of allergy is usually achieved by definition not only of physicochemical and immunological properties of natural, but also recombinant allergens. Blomia tropicalis mite is a well-known source for various groups of hypersensitivity-causing proteins. The goal of the present work was to produce, purify and characterise by in silico, biochemical and immunological methods the recombinant group-12 allergen of B. tropicalis. The recombinant Blo t 12 aggregation capacity as well as the affinity to antibodies from BALB/c immunised mice and B. tropicalis-sensitised human donors were investigated through in silico analyses, dynamic light scattering, SDS-PAGE, ELISA and Western blot. The presence of Blo t 12 within B. tropicalis extracts was also determined by ELISA and Western blot. High concentrations of dimeric rBlo t 12 were detected through SDS-PAGE next to other aggregates and the results were confirmed by data from DLS and Western blot. The YITVM peptide was predicted to be the most aggregation-prone region. The IgE-reactivity of rBlo t 12 was not completely abolished by aggregate formation but it was significantly decreased compared to rBlo t 5, or B. tropicalis extracts. Natural Blo t 12 may naturally dimerises, but it was detected in non-delipidified B. tropicalis extracts in low amounts. Given that this allergen may be a specific marker for B. tropicalis allergy, the recombinant Blo t 12 herein obtained is characterised as a mid-tier allergen in Brazilian atopic patients and may be useful for the improvement in precision allergy molecular diagnostic applications.
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Abstract
PURPOSE OF REVIEW Pediatric obese asthma is a complex disease that remains poorly understood. The increasing worldwide incidence of both asthma and obesity over the last few decades, their current high prevalence and the challenges in treating obese asthmatic patients all highlight the importance of a better understanding of the pathophysiological mechanisms in obese asthma. While it is well established that patients with obesity are at an increased risk of developing asthma, the mechanisms by which obesity drives the onset of asthma, and modifies existing asthma, remain unclear. Here, we will focus on mechanisms by which obesity alters immune function in asthma. RECENT FINDINGS Lung parenchyma has an altered structure in some pediatric obese asthmatics, known as dysanapsis. Central adiposity is linked to reduced pulmonary function and a better predictor of asthma risk in children than BMI. Obesity in young children is associated with an increased risk of developing asthma, as well as early puberty, and hormonal alterations are implicated in obese asthma. Obesity and asthma each yield immunometabolic dysregulation separately and we are learning more about alterations in these pathways in pediatric obese asthma and the potential impact of bariatric surgery on those processes. SUMMARY The recent progress in clarifying the connections between childhood obesity and asthma and their combined impacts on immune function moves us closer to the goals of improved understanding of the pathophysiological mechanisms underpinning obese asthma and improved therapeutic target selection. However, this common inflammatory disease remains understudied, especially in children, and much remains to be learned.
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Affiliation(s)
- Ceire Hay
- Children’s Hospital of Philadelphia, Department of Pediatrics, Division of Allergy Immunology, Philadelphia, PA
| | - Sarah E. Henrickson
- Children’s Hospital of Philadelphia, Department of Pediatrics, Division of Allergy Immunology, Philadelphia, PA
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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48
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Harker JA, Lloyd CM. Overlapping and distinct features of viral and allergen immunity in the human lung. Immunity 2021; 54:617-631. [PMID: 33852829 DOI: 10.1016/j.immuni.2021.03.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/28/2021] [Accepted: 03/15/2021] [Indexed: 12/30/2022]
Abstract
Immunity in the human respiratory tract is provided by a diverse range of tissue-resident cells, including specialized epithelial and macrophage populations and a network of innate and innate-like lymphocytes, such as natural killer cells, innate lymphoid cells, and invariant T cells. Lung-resident memory T and B cells contribute to this network following initial exposure to antigenic stimuli. This review explores how advances in the study of human immunology have shaped our understanding of this resident immune network and its response to two of the most commonly encountered inflammatory stimuli in the airways: viruses and allergens. It discusses the many ways in which pathogenic infection and allergic inflammation mirror each other, highlighting the key checkpoints at which they diverge and how this can result in a lifetime of allergic exacerbation versus protective anti-viral immunity.
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Affiliation(s)
- James A Harker
- National Heart and Lung Institute, Imperial College London, London SW7 2AZ, UK
| | - Clare M Lloyd
- National Heart and Lung Institute, Imperial College London, London SW7 2AZ, UK.
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49
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Jensen-Jarolim E, Roth-Walter F, Jordakieva G, Pali-Schöll I. Allergens and Adjuvants in Allergen Immunotherapy for Immune Activation, Tolerance, and Resilience. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:1780-1789. [PMID: 33753052 DOI: 10.1016/j.jaip.2020.12.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 11/25/2022]
Abstract
Allergen immunotherapy (AIT) is the only setting in which a vaccine is applied in patients allergic exactly to the active principle in the vaccine. Therefore, AIT products need to be not only effective but also safe. In Europe, for subcutaneous AIT, this has been achieved by the allergoid strategy in which IgE epitopes are destroyed or masked. In addition, adjuvants physically precipitate the allergen at the injection site to prevent too rapid systemic distribution. The choice of adjuvant critically shapes the efficacy and type of immune response to the injected allergen. In contrast to TH2-promoting adjuvants, others clearly counteract allergy. Marketed products in Europe are formulated with aluminum hydroxide (alum) (66.7%), microcrystalline tyrosine (16.7%), calcium phosphate (11.1%), or the TH1 adjuvant monophosphoryl lipid A (5.6%). In contrast to the European practice, in the United States mostly nonadjuvanted extracts and no allergoids are used for subcutaneous AIT, highlighting not only a regulatory but maybe a "historic preference." Sublingual AIT in the form of drops or tablets is currently applied worldwide without adjuvants, usually with higher safety but lower patient adherence than subcutaneous AIT. This article will discuss how AIT and adjuvants modulate the immune response in the treated patient toward immune activation, modulation, or-with new developments in the pipeline-immune resilience.
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Affiliation(s)
- Erika Jensen-Jarolim
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University Vienna, Vienna, Austria; The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University Vienna, Vienna, Austria.
| | - Franziska Roth-Walter
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University Vienna, Vienna, Austria; The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University Vienna, Vienna, Austria
| | - Galateja Jordakieva
- Department of Physical Medicine, Rehabilitation and Occupational Medicine, Medical University of Vienna, Vienna, Austria
| | - Isabella Pali-Schöll
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University Vienna, Vienna, Austria; The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University Vienna, Vienna, Austria
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50
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Jacquet A. Characterization of Innate Immune Responses to House Dust Mite Allergens: Pitfalls and Limitations. FRONTIERS IN ALLERGY 2021; 2:662378. [PMID: 35386970 PMCID: PMC8974781 DOI: 10.3389/falgy.2021.662378] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 02/22/2021] [Indexed: 01/02/2023] Open
Abstract
Whereas house dust mite (HDM) allergy results from a dysregulated Th2-biased adaptive immune response, activation of innate immune signaling pathways is a critical prerequisite for the initiation of HDM sensitizations. Such innate sensing is mainly controlled by the airway epithelium and the skin. The resulting release of epithelial-derived proinflammatory cytokines and innate alarmins such as GM-CSF, IL-25, IL-33 and TSLP mediates the activation of ILC2 cells and cDCs to promote Th2-biased inflammation. Significant progress in the elucidation of HDM innate immune activation has been made in the past decade and highlighted key roles of the LPS/TLR4 axis, chitin-dependent pathways together with HDM protease allergens. However, the precise mechanisms by which HDM allergens are sensed by the innate immune system remain largely unknown. Such investigations are made difficult for several reasons. Among these are (1) the natural association of HDM allergens with immunostimulators from the mite exoskeleton as well as from environmental microorganisms/pollutants or endosymbiotic bacteria; (2) the purification of individual HDM allergens from extracts in sufficient amounts and devoid of any microbial and protein impurities; (3) the production of correctly folded recombinant HDM allergens which could display the same biological activity than their natural counterparts; (4) the accessibility to human epithelial samples with cellular heterogeneities and inter-donor variations; (5) the translation of experimental data from mouse models to humans is almost missing. The goal of the present mini-review is to emphasize some important limitations and pitfalls in the elucidation of innate immunostimulatory properties of HDM allergens.
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Affiliation(s)
- Alain Jacquet
- *Correspondence: Alain Jacquet ; orcid.org/0000-0002-0980-9741
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