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Evans F, Alí-Ruiz D, Rego N, Negro-Demontel ML, Lago N, Cawen FA, Pannunzio B, Sanchez-Molina P, Reyes L, Paolino A, Rodríguez-Duarte J, Pérez-Torrado V, Chicote-González A, Quijano C, Marmisolle I, Mulet AP, Schlapp G, Meikle MN, Bresque M, Crispo M, Savio E, Malagelada C, Escande C, Peluffo H. CD300f immune receptor contributes to healthy aging by regulating inflammaging, metabolism, and cognitive decline. Cell Rep 2023; 42:113269. [PMID: 37864797 DOI: 10.1016/j.celrep.2023.113269] [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: 03/10/2023] [Revised: 08/25/2023] [Accepted: 09/28/2023] [Indexed: 10/23/2023] Open
Abstract
Emerging evidence suggests that immune receptors may participate in many aging-related processes such as energy metabolism, inflammation, and cognitive decline. CD300f, a TREM2-like lipid-sensing immune receptor, is an exceptional receptor as it integrates activating and inhibitory cell-signaling pathways that modulate inflammation, efferocytosis, and microglial metabolic fitness. We hypothesize that CD300f can regulate systemic aging-related processes and ultimately healthy lifespan. We closely followed several cohorts of two strains of CD300f-/- and WT mice of both sexes for 30 months and observed an important reduction in lifespan and healthspan in knockout mice. This was associated with systemic inflammaging, increased cognitive decline, reduced brain glucose uptake observed by 18FDG PET scans, enrichment in microglial aging/neurodegeneration phenotypes, proteostasis alterations, senescence, increased frailty, and sex-dependent systemic metabolic changes. Moreover, the absence of CD300f altered macrophage immunometabolic phenotype. Taken together, we provide strong evidence suggesting that myeloid cell CD300f immune receptor contributes to healthy aging.
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Affiliation(s)
- Frances Evans
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Daniela Alí-Ruiz
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Natalia Rego
- Bioinformatics Unit, Institut Pasteur de Montevideo, Montevideo, Uruguay; Faculty of Sciences, UDELAR, Montevideo, Uruguay
| | - María Luciana Negro-Demontel
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Natalia Lago
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Fabio Andrés Cawen
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Bruno Pannunzio
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Paula Sanchez-Molina
- Department of Cell Biology, Physiology and Immunology, and Institute of Neuroscience, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura Reyes
- Uruguayan Center for Molecular Imaging (CUDIM), Montevideo, Uruguay
| | - Andrea Paolino
- Uruguayan Center for Molecular Imaging (CUDIM), Montevideo, Uruguay
| | - Jorge Rodríguez-Duarte
- Laboratory of Vascular Biology and Drug Development, INDICYO Program, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Valentina Pérez-Torrado
- Metabolic Diseases and Aging Laboratory, INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Almudena Chicote-González
- Unitat de Bioquímica i Biologia Molecular, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain; Institut de Neurociències, Universitat de Barcelona (UB), Barcelona, Spain
| | - Celia Quijano
- Departamento de Bioquímica y Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Inés Marmisolle
- Departamento de Bioquímica y Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Ana Paula Mulet
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Geraldine Schlapp
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - María Noel Meikle
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Mariana Bresque
- Metabolic Diseases and Aging Laboratory, INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Martina Crispo
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Eduardo Savio
- Uruguayan Center for Molecular Imaging (CUDIM), Montevideo, Uruguay
| | - Cristina Malagelada
- Unitat de Bioquímica i Biologia Molecular, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain; Institut de Neurociències, Universitat de Barcelona (UB), Barcelona, Spain
| | - Carlos Escande
- Metabolic Diseases and Aging Laboratory, INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Hugo Peluffo
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay; Unitat de Bioquímica i Biologia Molecular, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain; Institut de Neurociències, Universitat de Barcelona (UB), Barcelona, Spain.
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2
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Alí-Ruiz D, Vitureira N, Peluffo H. Microglial CD300f immune receptor contributes to the maintenance of neuron viability in vitro and after a penetrating brain injury. Sci Rep 2023; 13:16796. [PMID: 37798310 PMCID: PMC10556028 DOI: 10.1038/s41598-023-43840-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023] Open
Abstract
Emerging evidences suggest that immune receptors participate in diverse microglial and macrophage functions by regulating their immunometabolism, inflammatory phenotype and phagocytosis. CD300f, a TREM2-like lipid sensing immune receptor, that integrates activating and inhibitory cell-signalling pathways, modulates inflammation, efferocytosis and microglial metabolic fitness. In particular, CD300f overexpression was described to be neuroprotective after an acute brain injury, suggesting a role for this immune receptor in neurotrophic interactions. Thus, we hypothesised that CD300f modulates neuronal survival through neuron-microglial interactions. In order to study its biological function, we used in vitro and in vivo approaches, CD300f-/- animals and rCD300f-Fc, a fusion protein that interrupts the endogen interaction between CD300f receptor-ligands. In hippocampal cocultures containing neurons and mixed glia, we observed that rCD300f-Fc, but not control IgGs induced neuronal death. In accordance, in vivo studies performed by injecting rCD300f-Fc or control IgGs into rat or WT or CD300 KO mice neocortex, showed an increased lesioned area after a penetrating brain injury. Interestingly, this neuronal death was dependent on glia, and the neurotoxic mechanism did not involve the increase of proinflammatory cytokines, the participation of NMDA receptors or ATP release. However, exogenous addition of glial cell line-derived neurotrophic factor (GDNF) prevented this process. Taken together, our results suggest that CD300f modulates neuronal survival in vitro and after a penetrating brain injury in vivo and that CD300f inhibition alters microglial phenotype generating a neurotoxic microenvironment.
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Affiliation(s)
- Daniela Alí-Ruiz
- Neuroinflammation and Gene Therapy Lab., Institut Pasteur de Montevideo, Montevideo, Uruguay
- Departamento de Histología y Embriología, Facultad de Medicina, UdelaR, Montevideo, Uruguay
| | - Nathalia Vitureira
- Departamento de Fisiología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Hugo Peluffo
- Neuroinflammation and Gene Therapy Lab., Institut Pasteur de Montevideo, Montevideo, Uruguay.
- Departamento de Histología y Embriología, Facultad de Medicina, UdelaR, Montevideo, Uruguay.
- Unitat de Bioquímica i Biología Molecular, Departamento de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain.
- Institut de Neurociències, Universitat de Barcelona (UB), Barcelona, Spain.
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3
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Ponnusamy M, Wang S, Yuksel M, Hansen MT, Blazier DM, McMillan JD, Zhang X, Dammer EB, Collier L, Thinakaran G. Loss of forebrain BIN1 attenuates hippocampal pathology and neuroinflammation in a tauopathy model. Brain 2023; 146:1561-1579. [PMID: 36059072 PMCID: PMC10319775 DOI: 10.1093/brain/awac318] [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: 03/18/2022] [Revised: 07/08/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
Bridging integrator 1 (BIN1) is the second most prevalent genetic risk factor identified by genome-wide association studies (GWAS) for late-onset Alzheimer's disease. BIN1 encodes an adaptor protein that regulates membrane dynamics in the context of endocytosis and neurotransmitter vesicle release. In vitro evidence suggests that BIN1 can directly bind to tau in the cytosol. In addition, BIN1's function limits extracellular tau seed uptake by endocytosis and subsequent propagation as well as influences tau release through exosomes. However, the in vivo roles of BIN1 in tau pathogenesis and tauopathy-mediated neurodegeneration remain uncharacterized. We generated conditional knockout mice with a selective loss of Bin1 expression in the forebrain excitatory neurons and oligodendrocytes in P301S human tau transgenic background (line PS19). PS19 mice develop age-dependent tau neuropathology and motor deficits and are commonly used to study Alzheimer's disease tau pathophysiology. The severity of motor deficits and neuropathology was compared between experimental and control mice that differ with respect to forebrain BIN1 expression. BIN1's involvement in tau pathology and neuroinflammation was quantified by biochemical methods and immunostaining. Transcriptome changes were profiled by RNA-sequencing analysis to gain molecular insights. The loss of forebrain BIN1 expression in PS19 mice exacerbated tau pathology in the somatosensory cortex, thalamus, spinal cord and sciatic nerve, accelerated disease progression and caused early death. Intriguingly, the loss of BIN1 also mitigated tau neuropathology in select regions, including the hippocampus, entorhinal/piriform cortex, and amygdala, thus attenuating hippocampal synapse loss, neuronal death, neuroinflammation and brain atrophy. At the molecular level, the loss of forebrain BIN1 elicited complex neuronal and non-neuronal transcriptomic changes, including altered neuroinflammatory gene expression, concomitant with an impaired microglial transition towards the disease-associated microglial phenotype. These results provide crucial new information on in vivo BIN1 function in the context of tau pathogenesis. We conclude that forebrain neuronal BIN1 expression promotes hippocampal tau pathogenesis and neuroinflammation. Our findings highlight an exciting region specificity in neuronal BIN1 regulation of tau pathogenesis and reveal cell-autonomous and non-cell-autonomous mechanisms involved in BIN1 modulation of tau neuropathology.
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Affiliation(s)
- Moorthi Ponnusamy
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Shuai Wang
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Melike Yuksel
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Mitchell T Hansen
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Danielle M Blazier
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Joseph D McMillan
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Xiaolin Zhang
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Eric B Dammer
- Department of Biochemistry, Emory University, Atlanta, GA 30322, USA
| | - Lisa Collier
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Gopal Thinakaran
- Byrd Alzheimer’s Center and Research Institute, University of South Florida, Tampa, FL 33613, USA
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
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Kaufmann FN, Lago N, Alí-Ruiz D, Jansen K, Souza LDM, Silva RA, Lara DR, Ghisleni G, Peluffo H, Kaster MP. Sex-dependent role of CD300f immune receptor in generalized anxiety disorder. Brain Behav Immun Health 2021; 11:100191. [PMID: 34589728 PMCID: PMC8474181 DOI: 10.1016/j.bbih.2020.100191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 11/25/2022] Open
Abstract
Generalized Anxiety Disorder (GAD) presents a high prevalence in the population, leading to distress and disability. Immune system alterations have been associated with anxiety-related behaviors in rodents and GAD patients. CD300f immune receptors are highly expressed in microglia and participate not only in the modulation of immune responses but also in pruning and reshaping synapses. It was recently demonstrated that CD300f might be influential in the pathogenesis of depression in a sex-dependent manner. Here, we evaluated the role of CD300f immune receptor in anxiety, using CD300f knockout mice (CD300f-/-) and patients with GAD. We observed that male CD300f-/- mice had numerous behavioral changes associated with a low-anxiety phenotype, including increased open field central locomotion and rearing behaviors, more exploration in the open arms of the elevated plus-maze test, and decreased latency to eat in the novelty suppressed feeding test. In a cross-sectional population-based study, including 1111 subjects, we evaluated a common single-nucleotide polymorphism rs2034310 (C/T) in the cytoplasmatic tail of CD300f gene in individuals with GAD. Notably, we observed that the T allele of the rs2034310 polymorphism conferred protection against GAD in men, even after adjusting for confounding variables. Overall, our data demonstrate that CD300f immune receptors are involved in the modulation of pathological anxiety behaviors in a sex-dependent manner. The biological basis of these sex differences is still poorly understood, but it may provide significant clues regarding the neuropathophysiological mechanisms of GAD and can pave the way for future specific pharmacological interventions.
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Affiliation(s)
- Fernanda N Kaufmann
- Department of Psychiatry and Neuroscience, Faculty of Medicine and CERVO Brain Research Center, Université Laval, Quebec City, Canada
| | - Natalia Lago
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Daniela Alí-Ruiz
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Karen Jansen
- Department of Life and Health Sciences, Catholic University of Pelotas, Rio Grande do Sul, Brazil
| | - Luciano D M Souza
- Department of Life and Health Sciences, Catholic University of Pelotas, Rio Grande do Sul, Brazil
| | - Ricardo A Silva
- Department of Life and Health Sciences, Catholic University of Pelotas, Rio Grande do Sul, Brazil
| | - Diogo R Lara
- Department of Cellular and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Gabriele Ghisleni
- Department of Life and Health Sciences, Catholic University of Pelotas, Rio Grande do Sul, Brazil
| | - Hugo Peluffo
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay.,Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Manuella P Kaster
- Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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CD300lf Conditional Knockout Mouse Reveals Strain-Specific Cellular Tropism of Murine Norovirus. J Virol 2021; 95:JVI.01652-20. [PMID: 33177207 DOI: 10.1128/jvi.01652-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/02/2020] [Indexed: 02/07/2023] Open
Abstract
Noroviruses are a leading cause of gastrointestinal infection in humans and mice. Understanding human norovirus (HuNoV) cell tropism has important implications for our understanding of viral pathogenesis. Murine norovirus (MNoV) is extensively used as a surrogate model for HuNoV. We previously identified CD300lf as the receptor for MNoV. Here, we generated a Cd300lf conditional knockout (CD300lfF/F ) mouse to elucidate the cell tropism of persistent and nonpersistent strains of murine norovirus. Using this mouse model, we demonstrated that CD300lf expression on intestinal epithelial cells (IECs), and on tuft cells in particular, is essential for transmission of the persistent MNoV strain CR6 (MNoVCR6) in vivo In contrast, the nonpersistent MNoV strain CW3 (MNoVCW3) does not require CD300lf expression on IECs for infection. However, deletion of CD300lf in myelomonocytic cells (LysM Cre+) partially reduces CW3 viral load in lymphoid and intestinal tissues. Disruption of CD300lf expression on B cells (CD19 Cre), neutrophils (Mrp8 Cre), and dendritic cells (CD11c Cre) did not affect MNoVCW3 viral RNA levels. Finally, we show that the transcription factor STAT1, which is critical for the innate immune response, partially restricts the cell tropism of MNoVCW3 to LysM+ cells. Taken together, these data demonstrate that CD300lf expression on tuft cells is essential for MNoVCR6; that myelomonocytic cells are a major, but not exclusive, target cell of MNoVCW3; and that STAT1 signaling restricts the cellular tropism of MNoVCW3 This study provides the first genetic system for studying the cell type-specific role of CD300lf in norovirus pathogenesis.IMPORTANCE Human noroviruses (HuNoVs) are a leading cause of gastroenteritis resulting in up to 200,000 deaths each year. The receptor and cell tropism of HuNoV in immunocompetent humans are unclear. We use murine norovirus (MNoV) as a model for HuNoV. We recently identified CD300lf as the sole physiologic receptor for MNoV. Here, we leverage this finding to generate a Cd300lf conditional knockout mouse to decipher the contributions of specific cell types to MNoV infection. We demonstrate that persistent MNoVCR6 requires CD300lf expression on tuft cells. In contrast, multiple CD300lf+ cell types, dominated by myelomonocytic cells, are sufficient for nonpersistent MNoVCW3 infection. CD300lf expression on epithelial cells, B cells, neutrophils, and dendritic cells is not critical for MNoVCW3 infection. Mortality associated with the MNoVCW3 strain in Stat1-/- mice does not require CD300lf expression on LysM+ cells, highlighting that both CD300lf receptor expression and innate immunity regulate MNoV cell tropism in vivo.
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Ellegaard Nielsen J, Sofie Pedersen K, Vestergård K, Georgiana Maltesen R, Christiansen G, Lundbye-Christensen S, Moos T, Risom Kristensen S, Pedersen S. Novel Blood-Derived Extracellular Vesicle-Based Biomarkers in Alzheimer's Disease Identified by Proximity Extension Assay. Biomedicines 2020; 8:E199. [PMID: 32645971 PMCID: PMC7400538 DOI: 10.3390/biomedicines8070199] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/29/2020] [Accepted: 07/03/2020] [Indexed: 12/14/2022] Open
Abstract
Easily accessible biomarkers for Alzheimer's dementia (AD) are lacking and established clinical markers are limited in applicability. Blood is a common biofluid for biomarker discoveries, and extracellular vesicles (EVs) may provide a matrix for exploring AD related biomarkers. Thus, we investigated proteins related to neurological and inflammatory processes in plasma and EVs. By proximity extension assay (PEA), 182 proteins were measured in plasma and EVs from patients with AD (n = 10), Mild Cognitive Impairment (MCI, n = 10), and healthy controls (n = 10). Plasma-derived EVs were enriched by 20,000× g, 1 h, 4 °C, and confirmed using nanoparticle tracking analysis (NTA), western blotting, and transmission electron microscopy with immunolabelling (IEM). Presence of CD9+ EVs was confirmed by western blotting and IEM. No group differences in particle concentration or size were detected by NTA. However, significant protein profiles were observed among subjects, particularly for EVs. Several proteins and their ratios could distinguish cognitively affected from healthy individuals. For plasma TGF-α│CCL20 (AUC = 0.96, 95% CI = 0.88-1.00, p = 0.001) and EVs CLEC1B│CCL11 (AUC = 0.95, 95% CI = 0.86-1.00, p = 0.001) showed diagnostic capabilities. Using PEA, we identified protein profiles capable of distinguishing healthy controls from AD patients. EVs provided additional biological information related to AD not observed in plasma alone.
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Affiliation(s)
- Jonas Ellegaard Nielsen
- Department of Clinical Medicine, Aalborg University, DK-9000 Aalborg, Denmark; (S.L.-C.); (S.R.K.)
- Department of Clinical Biochemistry, Aalborg University Hospital, DK-9000 Aalborg, Denmark
| | | | - Karsten Vestergård
- Department of Neurology, Aalborg University Hospital, DK-9000 Aalborg, Denmark;
| | - Raluca Georgiana Maltesen
- Department of Anaesthesia and Intensive Care, Aalborg University Hospital, DK-9000 Aalborg, Denmark;
| | - Gunna Christiansen
- Department of Biomedicine, Aarhus University, DK-8000 Aarhus, Denmark;
- Department of Health Science and Technology, Aalborg University, DK-9220 Aalborg, Denmark;
| | - Søren Lundbye-Christensen
- Department of Clinical Medicine, Aalborg University, DK-9000 Aalborg, Denmark; (S.L.-C.); (S.R.K.)
- Unit of Clinical Biostatistics, Aalborg University Hospital, DK-9000 Aalborg, Denmark
| | - Torben Moos
- Department of Health Science and Technology, Aalborg University, DK-9220 Aalborg, Denmark;
| | - Søren Risom Kristensen
- Department of Clinical Medicine, Aalborg University, DK-9000 Aalborg, Denmark; (S.L.-C.); (S.R.K.)
- Department of Clinical Biochemistry, Aalborg University Hospital, DK-9000 Aalborg, Denmark
| | - Shona Pedersen
- Department of Clinical Medicine, Aalborg University, DK-9000 Aalborg, Denmark; (S.L.-C.); (S.R.K.)
- Department of Clinical Biochemistry, Aalborg University Hospital, DK-9000 Aalborg, Denmark
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Graziano VR, Walker FC, Kennedy EA, Wei J, Ettayebi K, Strine MS, Filler RB, Hassan E, Hsieh LL, Kim AS, Kolawole AO, Wobus CE, Lindesmith LC, Baric RS, Estes MK, Orchard RC, Baldridge MT, Wilen CB. CD300lf is the primary physiologic receptor of murine norovirus but not human norovirus. PLoS Pathog 2020; 16:e1008242. [PMID: 32251490 PMCID: PMC7162533 DOI: 10.1371/journal.ppat.1008242] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 04/16/2020] [Accepted: 03/03/2020] [Indexed: 12/18/2022] Open
Abstract
Murine norovirus (MNoV) is an important model of human norovirus (HNoV) and mucosal virus infection more broadly. Viral receptor utilization is a major determinant of cell tropism, host range, and pathogenesis. The bona fide receptor for HNoV is unknown. Recently, we identified CD300lf as a proteinaceous receptor for MNoV. Interestingly, its paralogue CD300ld was also sufficient for MNoV infection in vitro. Here we explored whether CD300lf is the sole physiologic receptor in vivo and whether HNoV can use a CD300 ortholog as an entry receptor. We report that both CD300ld and CD300lf are sufficient for infection by diverse MNoV strains in vitro. We further demonstrate that CD300lf is essential for both oral and parenteral MNoV infection and to elicit anti-MNoV humoral responses in vivo. In mice deficient in STAT1 signaling, CD300lf is required for MNoV-induced lethality. Finally, we demonstrate that human CD300lf (huCD300lf) is not essential for HNoV infection, nor does huCD300lf inhibit binding of HNoV virus-like particles to glycans. Thus, we report huCD300lf is not a receptor for HNoV.
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Affiliation(s)
- Vincent R. Graziano
- Departments of Laboratory Medicine and Immunobiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Forrest C. Walker
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences & Systems Biology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Elizabeth A. Kennedy
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences & Systems Biology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Jin Wei
- Departments of Laboratory Medicine and Immunobiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Khalil Ettayebi
- Departments of Medicine and Molecular Virology & Microbiology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Madison S. Strine
- Departments of Laboratory Medicine and Immunobiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Renata B. Filler
- Departments of Laboratory Medicine and Immunobiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
| | - Ebrahim Hassan
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences & Systems Biology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Leon L. Hsieh
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Arthur S. Kim
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences & Systems Biology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Abimbola O. Kolawole
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Christiane E. Wobus
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Lisa C. Lindesmith
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Ralph S. Baric
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Mary K. Estes
- Departments of Medicine and Molecular Virology & Microbiology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Robert C. Orchard
- Department of Immunology, University of Texas Southwestern Medical School, Dallas, Texas, United States of America
| | - Megan T. Baldridge
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences & Systems Biology, Washington University School of Medicine, Saint Louis, Missouri, United States of America
| | - Craig B. Wilen
- Departments of Laboratory Medicine and Immunobiology, Yale University School of Medicine, New Haven, Connecticut, United States of America
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8
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CD300f immunoreceptor is associated with major depressive disorder and decreased microglial metabolic fitness. Proc Natl Acad Sci U S A 2020; 117:6651-6662. [PMID: 32152116 DOI: 10.1073/pnas.1911816117] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A role for microglia in neuropsychiatric diseases, including major depressive disorder (MDD), has been postulated. Regulation of microglial phenotype by immune receptors has become a central topic in many neurological conditions. We explored preclinical and clinical evidence for the role of the CD300f immune receptor in the fine regulation of microglial phenotype and its contribution to MDD. We found that a prevalent nonsynonymous single-nucleotide polymorphism (C/T, rs2034310) of the human CD300f receptor cytoplasmic tail inhibits the protein kinase C phosphorylation of a threonine and is associated with protection against MDD, mainly in women. Interestingly, CD300f-/- mice displayed several characteristic MDD traits such as augmented microglial numbers, increased interleukin 6 and interleukin 1 receptor antagonist messenger RNA, alterations in synaptic strength, and noradrenaline-dependent and persistent depressive-like and anhedonic behaviors in females. This behavioral phenotype could be potentiated inducing the lipopolysaccharide depression model. RNA sequencing and biochemical studies revealed an association with impaired microglial metabolic fitness. In conclusion, we report a clear association that links the function of the CD300f immune receptor with MDD in humans, depressive-like and anhedonic behaviors in female mice, and altered microglial metabolic reprogramming.
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9
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Lee WH, Seo D, Lim SG, Suk K. Reverse Signaling of Tumor Necrosis Factor Superfamily Proteins in Macrophages and Microglia: Superfamily Portrait in the Neuroimmune Interface. Front Immunol 2019; 10:262. [PMID: 30838001 PMCID: PMC6389649 DOI: 10.3389/fimmu.2019.00262] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 01/30/2019] [Indexed: 12/14/2022] Open
Abstract
The tumor necrosis factor (TNF) superfamily (TNFSF) is a protein superfamily of type II transmembrane proteins commonly containing the TNF homology domain. The superfamily contains more than 20 protein members, which can be released from the cell membrane by proteolytic cleavage. Members of the TNFSF function as cytokines and regulate diverse biological processes, including immune responses, proliferation, differentiation, apoptosis, and embryogenesis, by binding to TNFSF receptors. Many TNFSF proteins are also known to be responsible for the regulation of innate immunity and inflammation. Both receptor-mediated forward signaling and ligand-mediated reverse signaling play important roles in these processes. In this review, we discuss the functional expression and roles of various reverse signaling molecules and pathways of TNFSF members in macrophages and microglia in the central nervous system (CNS). A thorough understanding of the roles of TNFSF ligands and receptors in the activation of macrophages and microglia may improve the treatment of inflammatory diseases in the brain and periphery. In particular, TNFSF reverse signaling in microglia can be exploited to gain further insights into the functions of the neuroimmune interface in physiological and pathological processes in the CNS.
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Affiliation(s)
- Won-Ha Lee
- BK21 Plus KNU Creative BioResearch Group, School of Life Sciences, Kyungpook National University, Daegu, South Korea
| | - Donggun Seo
- BK21 Plus KNU Biomedical Convergence Program, Department of Pharmacology, School of Medicine, Brain Science & Engineering Institute, Kyungpook National University, Daegu, South Korea
| | - Su-Geun Lim
- BK21 Plus KNU Creative BioResearch Group, School of Life Sciences, Kyungpook National University, Daegu, South Korea
| | - Kyoungho Suk
- BK21 Plus KNU Biomedical Convergence Program, Department of Pharmacology, School of Medicine, Brain Science & Engineering Institute, Kyungpook National University, Daegu, South Korea
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10
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Vitallé J, Terrén I, Orrantia A, Zenarruzabeitia O, Borrego F. CD300 receptor family in viral infections. Eur J Immunol 2018; 49:364-374. [DOI: 10.1002/eji.201847951] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 10/02/2018] [Accepted: 11/26/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Joana Vitallé
- Immunopathology GroupBiocruces Bizkaia Health Research Institute Barakaldo Bizkaia Spain
| | - Iñigo Terrén
- Immunopathology GroupBiocruces Bizkaia Health Research Institute Barakaldo Bizkaia Spain
| | - Ane Orrantia
- Immunopathology GroupBiocruces Bizkaia Health Research Institute Barakaldo Bizkaia Spain
| | - Olatz Zenarruzabeitia
- Immunopathology GroupBiocruces Bizkaia Health Research Institute Barakaldo Bizkaia Spain
| | - Francisco Borrego
- Immunopathology GroupBiocruces Bizkaia Health Research Institute Barakaldo Bizkaia Spain
- IkerbasqueBasque Foundation for Science Bilbao Bizkaia Spain
- Basque Center for Transfusion and Human Tissues Galdakao Spain
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11
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Mouse LIMR3/CD300f is a negative regulator of the antimicrobial activity of neutrophils. Sci Rep 2018; 8:17406. [PMID: 30479367 PMCID: PMC6258681 DOI: 10.1038/s41598-018-35699-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 11/06/2018] [Indexed: 01/26/2023] Open
Abstract
Leukocyte mono-immunoglobulin-like receptor (LMIR)/CD300 proteins comprise a family of immunoglobulin-like receptors that are widely expressed on the immune cell surface in humans and mice. In general, LMIR3/CD300f suppresses the inflammatory response, but it can occasionally promote it. However, the precise roles of LMIR3 in the function of neutrophils remain to be elucidated. In the present study, we investigated LMIR3 expression in mature and immature neutrophils, and evaluated the effects of LMIR3 deficiency in mouse neutrophils. Our results indicated that bone marrow (BM) neutrophils expressed LMIR3 on their cell surface during cell maturation and that surface LMIR3 expression increased in response to Pseudomonas aeruginosa infection in a TLR4/MyD88-dependent manner. LMIR3-knockout (KO) neutrophils displayed significantly increased hypochlorous acid production, and elastase release, as well as significantly augmented cytotoxic activity against P. aeruginosa and Candida albicans; meanwhile, inhibitors of elastase and myeloperoxidase offset this enhanced antimicrobial activity. Furthermore, LMIR3-KO mice were significantly more resistant to Pseudomonas peritonitis and systemic candidiasis, although this may not be entirely due to the enhanced activity of neutrophils. These results demonstrate that LMIR3/CD300f deficiency augments the antimicrobial activity of mouse neutrophils.
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12
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Wilen CB, Lee S, Hsieh LL, Orchard RC, Desai C, Hykes BL, McAllaster MR, Balce DR, Feehley T, Brestoff JR, Hickey CA, Yokoyama CC, Wang YT, MacDuff DA, Kreamalmayer D, Howitt MR, Neil JA, Cadwell K, Allen PM, Handley SA, van Lookeren Campagne M, Baldridge MT, Virgin HW. Tropism for tuft cells determines immune promotion of norovirus pathogenesis. Science 2018; 360:204-208. [PMID: 29650672 PMCID: PMC6039974 DOI: 10.1126/science.aar3799] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 03/05/2018] [Indexed: 12/12/2022]
Abstract
Complex interactions between host immunity and the microbiome regulate norovirus infection. However, the mechanism of host immune promotion of enteric virus infection remains obscure. The cellular tropism of noroviruses is also unknown. Recently, we identified CD300lf as a murine norovirus (MNoV) receptor. In this study, we have shown that tuft cells, a rare type of intestinal epithelial cell, express CD300lf and are the target cell for MNoV in the mouse intestine. We found that type 2 cytokines, which induce tuft cell proliferation, promote MNoV infection in vivo. These cytokines can replace the effect of commensal microbiota in promoting virus infection. Our work thus provides insight into how the immune system and microbes can coordinately promote enteric viral infection.
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Affiliation(s)
- Craig B Wilen
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Sanghyun Lee
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Leon L Hsieh
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Robert C Orchard
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Chandni Desai
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Barry L Hykes
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Michael R McAllaster
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Dale R Balce
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Taylor Feehley
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Jonathan R Brestoff
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Christina A Hickey
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Christine C Yokoyama
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Ya-Ting Wang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Donna A MacDuff
- Department of Microbiology and Immunology, University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Darren Kreamalmayer
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Michael R Howitt
- Department of Immunology and Infectious Disease, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Jessica A Neil
- Kimmel Center for Biology and Medicine at the Skirball Institute and Department of Microbiology, New York University School of Medicine, New York, NY 10016, USA
| | - Ken Cadwell
- Kimmel Center for Biology and Medicine at the Skirball Institute and Department of Microbiology, New York University School of Medicine, New York, NY 10016, USA
| | - Paul M Allen
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Scott A Handley
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | | | - Megan T Baldridge
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Herbert W Virgin
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.
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13
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Rozenberg P, Reichman H, Moshkovits I, Munitz A. CD300 family receptors regulate eosinophil survival, chemotaxis, and effector functions. J Leukoc Biol 2017; 104:21-29. [PMID: 29345367 DOI: 10.1002/jlb.2mr1117-433r] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 12/17/2022] Open
Abstract
The CD300 family of receptors is an evolutionary conserved receptor family that belongs to the Ig superfamily and is expressed predominantly by the myeloid lineage. Over the past couple of years, accumulating data have shown that eosinophils express various Ig superfamily receptors that regulate key checkpoints in their biology including their maturation, transition from the bone marrow to the peripheral blood, migration, adhesion, survival, and effector functions in response to numerous activating signals such as IL-4, IL-33, and bacteria. In this review, we will present the emerging roles of CD300 family receptors and specifically CD300a and CD300f in the regulation of these eosinophil activities. The structure and expression pattern of these molecules will be discussed and their involvement in suppressing or co-activating eosinophil functions in health and disease will be illustrated.
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Affiliation(s)
- Perri Rozenberg
- Department of Clinical Microbiology and Immunology, the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Hadar Reichman
- Department of Clinical Microbiology and Immunology, the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Itay Moshkovits
- Department of Internal Medicine "T" and the Research Center for Digestive Disorders and Liver Diseases, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
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14
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Effect of Specific Mutations in Cd300 Complexes Formation; Potential Implication of Cd300f in Multiple Sclerosis. Sci Rep 2017; 7:13544. [PMID: 29051512 PMCID: PMC5648872 DOI: 10.1038/s41598-017-12881-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/15/2017] [Indexed: 12/15/2022] Open
Abstract
Herein, we have used bioinformatics tools to predict five clusters defining ligand-binding sites on the extracellular domain of human CD300b receptor, presumably involved in the formation of both homodimers and heterodimers with other CD300 family members. Site-directed mutagenesis revealed residues glutamic acid 28 and glutamine 29 in cluster 5 to be necessary for the formation of CD300b complexes. Surprisingly, the disruption of cluster 2 and 4 reconstituted the binding capability lost by the mutation of residues glutamic acid 28 to alanine, glutamine 29 to alanine (E28A-Q29G). We identified a missense mutation arginine 33 to glutamine (R33Q) in CD300f by direct sequencing of exon 2 in peripheral blood samples from 50 patients with multiple sclerosis (MS). Levels of expression of CD300f were almost undetectable on monocytes from the patient bearing the R33Q mutation compared with healthy individuals. Whereas R33Q mutation had no effect in the formation of CD300f complexes, the inhibition of protein synthesis with cycloheximide indicated that CD300f R33Q is less stable than native CD300f. Finally, we report that the levels of expression of CD300f on the surface of classical and intermediate monocytes from MS patients are significantly lower when compared to the same cell populations in healthy individuals.
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15
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Vitallé J, Zenarruzabeitia O, Terrén I, Plana M, Guardo AC, Leal L, Peña J, García F, Borrego F. Monocytes Phenotype and Cytokine Production in Human Immunodeficiency Virus-1 Infected Patients Receiving a Modified Vaccinia Ankara-Based HIV-1 Vaccine: Relationship to CD300 Molecules Expression. Front Immunol 2017; 8:836. [PMID: 28785262 PMCID: PMC5520290 DOI: 10.3389/fimmu.2017.00836] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 07/03/2017] [Indexed: 12/31/2022] Open
Abstract
A modified vaccinia Ankara-based HIV-1 vaccine clade B (MVA-B) has been tested for safety and immunogenicity in low-risk human immunodeficiency virus (HIV)-uninfected individuals and as a therapeutic vaccine in HIV-1-infected individuals on combined antiretroviral therapy (cART). As a therapeutic vaccine, MVA-B was safe and broadly immunogenic; however, patients still showed a viral rebound upon treatment interruption. Monocytes are an important part of the viral reservoir and several studies suggest that they are partly responsible for the chronic inflammation observed in cART-treated HIV-infected people. The CD300 family of receptors has an important role in several diseases, including viral infections. Monocytes express CD300a, c, e, and f molecules and lipopolysaccharide (LPS) and other stimuli regulate their expression. However, the expression and function of CD300 receptors on monocytes in HIV infection is still unknown. In this work, we investigated for the first time the expression of CD300 molecules and the cytokine production in response to LPS on monocytes from HIV-1-infected patients before and after vaccination with MVA-B. Our results showed that CD300 receptors expression on monocytes from HIV-1-infected patients correlates with markers of HIV infection progression and immune inflammation. Specifically, we observed a positive correlation between the expression of CD300e and CD300f receptors on monocytes with the number of CD4+ T cells of HIV-1-infected patients before vaccination. We also saw a positive correlation between the expression of the inhibitory receptor CD300f and the expression of CD163 on monocytes from HIV-1-infected individuals before and after vaccination. In addition, monocytes exhibited a higher cytokine production in response to LPS after vaccination, almost at the same levels of monocytes from healthy donors. Furthermore, we also described a correlation in the expression of CD300e and CD300f receptors with TNF-α production in response to LPS, only in monocytes of HIV-1-infected patients before vaccination. Altogether, our results describe the impact of HIV-1 and of the MVA-B vaccine in cytokine production and monocytes phenotype.
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Affiliation(s)
- Joana Vitallé
- Immunopathology Group, BioCruces Health Research Institute, Barakaldo, Spain
| | | | - Iñigo Terrén
- Immunopathology Group, BioCruces Health Research Institute, Barakaldo, Spain
| | - Montserrat Plana
- AIDS Research Group, IDIBAPS, HIVACAT, Hospital Clìnic, University of Barcelona, Barcelona, Spain
| | - Alberto C Guardo
- AIDS Research Group, IDIBAPS, HIVACAT, Hospital Clìnic, University of Barcelona, Barcelona, Spain
| | - Lorna Leal
- AIDS Research Group, IDIBAPS, HIVACAT, Hospital Clìnic, University of Barcelona, Barcelona, Spain
| | - José Peña
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
| | - Felipe García
- AIDS Research Group, IDIBAPS, HIVACAT, Hospital Clìnic, University of Barcelona, Barcelona, Spain
| | - Francisco Borrego
- Immunopathology Group, BioCruces Health Research Institute, Barakaldo, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, Spain.,Basque Center for Transfusion and Human Tissues, Galdakao, Spain
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16
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CD300f:IL-5 cross-talk inhibits adipose tissue eosinophil homing and subsequent IL-4 production. Sci Rep 2017; 7:5922. [PMID: 28725048 PMCID: PMC5517555 DOI: 10.1038/s41598-017-06397-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/09/2017] [Indexed: 12/22/2022] Open
Abstract
Eosinophils and their associated cytokines IL-4 and IL-5 are emerging as central orchestrators of the immune-metabolic axis. Herein, we demonstrate that cross-talk between the Ig-superfamily receptor CD300f and IL-5 is a key checkpoint that modifies the ability of eosinophils to regulate metabolic outcomes. Generation of Il5 Tg /Cd300f -/- mice revealed marked and distinct increases in eosinophil levels and their production of IL-4 in the white and brown adipose tissues. Consequently, Il5 Tg /Cd300f -/- mice had increased alternatively activated macrophage accumulation in the adipose tissue. Cd300f -/- mice displayed age-related accumulation of eosinophils and macrophages in the adipose tissue and decreased adipose tissue weight, which was associated with decreased diet-induced weight gain and insulin resistance. Notably, Il5 Tg /CD300f -/- were protected from diet-induced weight gain and glucose intolerance. These findings highlight the cross-talk between IL-5 receptor and CD300f as a novel pathway regulating adipose tissue eosinophils and offer new entry points for therapeutic intervention for obesity and its complications.
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17
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Disrupting ceramide-CD300f interaction prevents septic peritonitis by stimulating neutrophil recruitment. Sci Rep 2017; 7:4298. [PMID: 28655892 PMCID: PMC5487349 DOI: 10.1038/s41598-017-04647-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 05/17/2017] [Indexed: 12/15/2022] Open
Abstract
Sepsis is a serious clinical problem. Negative regulation of innate immunity is associated with sepsis progression, but the underlying mechanisms remains unclear. Here we show that the receptor CD300f promotes disease progression in sepsis. CD300f -/- mice were protected from death after cecal ligation and puncture (CLP), a murine model of septic peritonitis. CD300f was highly expressed in mast cells and recruited neutrophils in the peritoneal cavity. Analysis of mice (e.g., mast cell-deficient mice) receiving transplants of wild-type or CD300f -/- mast cells or neutrophils indicated that CD300f deficiency did not influence intrinsic migratory abilities of neutrophils, but enhanced neutrophil chemoattractant production (from mast cells and neutrophils) in the peritoneal cavity of CLP-operated mice, leading to robust accumulation of neutrophils which efficiently eliminated Escherichia coli. Ceramide-CD300f interaction suppressed the release of neutrophil chemoattractants from Escherichia coli-stimulated mast cells and neutrophils. Administration of the reagents that disrupted the ceramide-CD300f interaction prevented CLP-induced sepsis by stimulating neutrophil recruitment, whereas that of ceramide-containing vesicles aggravated sepsis. Extracellular concentrations of ceramides increased in the peritoneal cavity after CLP, suggesting a possible role of extracellular ceramides, CD300f ligands, in the negative-feedback suppression of innate immune responses. Thus, CD300f is an attractive target for the treatment of sepsis.
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18
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Moshkovits I, Reichman H, Karo-Atar D, Rozenberg P, Zigmond E, Haberman Y, Ben Baruch-Morgenstern N, Lampinen M, Carlson M, Itan M, Denson LA, Varol C, Munitz A. A key requirement for CD300f in innate immune responses of eosinophils in colitis. Mucosal Immunol 2017; 10:172-183. [PMID: 27118491 DOI: 10.1038/mi.2016.37] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 03/16/2016] [Indexed: 02/04/2023]
Abstract
Eosinophils are traditionally studied in the context of type 2 immune responses. However, recent studies highlight key innate immune functions for eosinophils especially in colonic inflammation. Surprisingly, molecular pathways regulating innate immune activities of eosinophil are largely unknown. We have recently shown that the CD300f is highly expressed by colonic eosinophils. Nonetheless, the role of CD300f in governing innate immune eosinophil activities is ill-defined. RNA sequencing of 162 pediatric Crohn's disease patients revealed upregulation of multiple Cd300 family members, which correlated with the presence of severe ulcerations and inflammation. Increased expression of CD300 family receptors was also observed in active ulcerative colitis (UC) and in mice following induction of experimental colitis. Specifically, the expression of CD300f was dynamically regulated in monocytes and eosinophils. Dextran sodium sulfate (DSS)-treated Cd300f-/- mice exhibit attenuated disease activity and histopathology in comparison with DSS-treated wild type (WT). Decreased disease activity in Cd300f-/- mice was accompanied with reduced inflammatory cell infiltration and nearly abolished production of pro-inflammatory cytokines. Monocyte depletion and chimeric bone marrow transfer experiments revealed a cell-specific requirement for CD300f in innate immune activation of eosinophils. Collectively, we uncover a new pathway regulating innate immune activities of eosinophils, a finding with significant implications in eosinophil-associated gastrointestinal diseases.
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Affiliation(s)
- I Moshkovits
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - H Reichman
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - D Karo-Atar
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - P Rozenberg
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - E Zigmond
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Y Haberman
- Department of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Pediatric Gastroenterology, Hepatology and Nutrition, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | - N Ben Baruch-Morgenstern
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - M Lampinen
- Gastroenterology Research Group, Department of Medical Sciences, University Hospital, Uppsala, Sweden
| | - M Carlson
- Gastroenterology Research Group, Department of Medical Sciences, University Hospital, Uppsala, Sweden
| | - M Itan
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - L A Denson
- Department of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - C Varol
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - A Munitz
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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19
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Tian L, Choi SC, Lee HN, Murakami Y, Qi CF, Sengottuvelu M, Voss O, Krzewski K, Coligan JE. Enhanced efferocytosis by dendritic cells underlies memory T-cell expansion and susceptibility to autoimmune disease in CD300f-deficient mice. Cell Death Differ 2016; 23:1086-96. [PMID: 26768664 DOI: 10.1038/cdd.2015.161] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 10/20/2015] [Accepted: 11/19/2015] [Indexed: 12/27/2022] Open
Abstract
Homeostasis requires the immunologically silent clearance of apoptotic cells before they become pro-inflammatory necrotic cells. CD300f (CLM-1) is a phosphatidylserine receptor known to positively regulate efferocytosis by macrophages, and CD300f gene-deficient mice are predisposed to develop a lupus-like disease. Here we show that, in contrast to CD300f function in macrophages, its expression inhibits efferocytosis by DC, and its deficiency leads to enhanced antigen processing and T-cell priming by these DC. The consequences are the expansion of memory T cells and increased ANA levels in aged CD300f-deficient mice, which predispose CD300f-deficient mice to develop an overt autoimmune disease when exposed to an overload of apoptotic cells, or an exacerbated autoimmunity when combined with FcγRIIB deficiency. Thus, our data demonstrates that CD300f helps to maintain immune homeostasis by promoting macrophage clearance of self-antigens, while conversely inhibiting DC uptake and presentation of self-antigens.
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Affiliation(s)
- L Tian
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - S-C Choi
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - H-N Lee
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - Y Murakami
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - C-F Qi
- Pathology Core, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - M Sengottuvelu
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - O Voss
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - K Krzewski
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
| | - J E Coligan
- Receptor Cell Biology Section, Laboratory of Immunogenetics, NIAID, NIH, Rockville, MD, USA
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20
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Apoptotic cell clearance of Leishmania major-infected neutrophils by dendritic cells inhibits CD8⁺ T-cell priming in vitro by Mer tyrosine kinase-dependent signaling. Cell Death Dis 2015; 6:e2018. [PMID: 26658192 PMCID: PMC4720886 DOI: 10.1038/cddis.2015.351] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 01/07/2023]
Abstract
Neutrophils are the predominant recruited and infected cells during the early stages of Leishmania major infection in the skin, and depletion of neutrophils promotes immunity to infection transmitted by sand fly bite. In order to better understand how the acute neutrophilic response suppresses immunity, we assessed the consequences of the interaction between neutrophils recovered from the skin-inoculation site and bone marrow-derived dendritic cells (DCs) in vitro. The capture of infected, apoptotic neutrophils by the DCs completely inhibited their cross-presentation function that was dependent on engagement of the receptor tyrosine kinase Mer on the DCs. The capture of uninfected neutrophils, or neutrophils infected with Toxoplasma gondii, had only slight immunomodulatory effects. These studies define the clearance of infected, apoptotic neutrophils by DCs and Mer receptor signaling as central to the early immune evasion strategies of L. major, with relevance to other vector-borne pathogens delivered by bite to the skin.
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21
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Peluffo H, Solari-Saquieres P, Negro-Demontel ML, Francos-Quijorna I, Navarro X, López-Vales R, Sayós J, Lago N. CD300f immunoreceptor contributes to peripheral nerve regeneration by the modulation of macrophage inflammatory phenotype. J Neuroinflammation 2015; 12:145. [PMID: 26259611 PMCID: PMC4531482 DOI: 10.1186/s12974-015-0364-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 07/21/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND It has recently become evident that activating/inhibitory cell surface immune receptors play a critical role in regulating immune and inflammatory processes in the central nervous system (CNS). The immunoreceptor CD300f expressed on monocytes, neutrophils, and mast cells modulates inflammation, phagocytosis, and outcome in models of autoimmune demyelination, allergy, and systemic lupus erythematosus. On the other hand, a finely regulated inflammatory response is essential to induce regeneration after injury to peripheral nerves since hematogenous macrophages, together with resident macrophages and de-differentiated Schwann cells, phagocyte distal axonal and myelin debris in a well-orchestrated inflammatory response. The possible roles and expression of CD300f and its ligands have not been reported under these conditions. METHODS By using quantitative PCR (QPCR) and CD300f-IgG2a fusion protein, we show the expression of CD300f and its ligands in the normal and crush injured sciatic nerve. The putative role of CD300f in peripheral nerve regeneration was analyzed by blocking receptor-ligand interaction with the same CD300f-IgG2a soluble receptor fusion protein in sciatic nerves of Thy1-YFP-H mice injected at the time of injury. Macrophage M1/M2 polarization phenotype was also analyzed by CD206 and iNOS expression. RESULTS We found an upregulation of CD300f mRNA and protein expression after injury. Moreover, the ligands are present in restricted membrane patches of Schwann cells, which remain stable after the lesion. The lesioned sciatic nerves of Thy1-YFP-H mice injected with a single dose of CD300f-IgG2a show long lasting effects on nerve regeneration characterized by a lower number of YFP-positive fibres growing into the tibial nerve after 10 days post lesion (dpl) and a delayed functional recovery when compared to PBS- or IgG2a-administered control groups. Animals treated with CD300f-IgG2a show at 10 dpl higher numbers of macrophages and CD206-positive cells and lower levels of iNOS expression than both control groups. At later time points (28 dpl), increased numbers of macrophages and iNOS expression occur. CONCLUSIONS Taken together, these results show that the pair CD300f ligand is implicated in Wallerian degeneration and nerve regeneration by modulating both the influx and phenotype of macrophages.
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Affiliation(s)
- Hugo Peluffo
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur Montevideo, Mataojo 2020, CP 11400, Montevideo, Uruguay.
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay.
| | - Patricia Solari-Saquieres
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur Montevideo, Mataojo 2020, CP 11400, Montevideo, Uruguay.
| | - Maria Luciana Negro-Demontel
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur Montevideo, Mataojo 2020, CP 11400, Montevideo, Uruguay.
| | - Isaac Francos-Quijorna
- Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain.
| | - Xavier Navarro
- Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain.
| | - Ruben López-Vales
- Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain.
| | - Joan Sayós
- Immunobiology Group, CIBBIM-Nanomedicine Program, Hospital Universitari Vall d'Hebron, Institut de Recerca (VHIR), Universitat Autonoma de Barcelona, Barcelona, Spain.
| | - Natalia Lago
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur Montevideo, Mataojo 2020, CP 11400, Montevideo, Uruguay.
- Neurodegeneration Laboratory, Institut Pasteur Montevideo, Montevideo, Uruguay.
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22
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Inoue E, Watanabe Y, Egawa J, Sugimoto A, Nunokawa A, Shibuya M, Igeta H, Someya T. Rare heterozygous truncating variations and risk of autism spectrum disorder: Whole-exome sequencing of a multiplex family and follow-up study in a Japanese population. Psychiatry Clin Neurosci 2015; 69:472-6. [PMID: 25601189 DOI: 10.1111/pcn.12274] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/05/2014] [Accepted: 01/10/2015] [Indexed: 01/24/2023]
Abstract
AIMS Rare heterozygous truncating variations in multiplex families with autism spectrum disorder (ASD) are suggested to play a major role in the genetic etiology of ASD. To further investigate the role of rare heterozygous truncating variations, we performed whole-exome sequencing (WES) in a multiplex ASD family with four affected individuals (two siblings and two maternal cousins), and a follow-up case-control study in a Japanese population. METHODS WES was performed in four individuals (a proband, his affected and unaffected siblings, and their putative carrier mother) from the multiplex ASD family. Rare heterozygous truncating variations prioritized in WES were genotyped in 243 patients and 667 controls. RESULTS By WES of the multiplex family, we prioritized two rare heterozygous truncating variations, RPS24 Q191X and CD300LF P261fsX266. However, we did not identify these variations in patients or controls in the follow-up study. CONCLUSIONS Our findings suggest that two rare heterozygous truncating variations (RPS24 Q191X and CD300LF P261fsX266) are risk candidates for ASD.
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Affiliation(s)
- Emiko Inoue
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Yuichiro Watanabe
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Division of Medical Education, Comprehensive Medical Education Center, School of Medicine, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Jun Egawa
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Department of Pediatric Psychiatry, Center for Transdisciplinary Research, Niigata University, Niigata, Japan
| | - Atsunori Sugimoto
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Ayako Nunokawa
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Oojima Hospital, Niigata, Japan
| | - Masako Shibuya
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.,Health Administration Center, Headquarters for Health Administration, Niigata University, Niigata, Japan
| | - Hirofumi Igeta
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Toshiyuki Someya
- Department of Psychiatry, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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23
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CD300f associates with IL-4 receptor α and amplifies IL-4-induced immune cell responses. Proc Natl Acad Sci U S A 2015; 112:8708-13. [PMID: 26124135 DOI: 10.1073/pnas.1507625112] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
IL-4 receptor (R) α, the common receptor chain for IL-4 and IL-13, is a critical component in IL-4- and IL-13-mediated signaling and subsequent effector functions such as those observed in type 2 inflammatory responses. Nonetheless, the existence of intrinsic pathways capable of amplifying IL-4Rα-induced responses remains unknown. In this study, we identified the myeloid-associated Ig receptor CD300f as an IL-4-induced molecule in macrophages. Subsequent analyses demonstrated that CD300f was colocalized and physically associated with IL-4Rα. Using Cd300f(-/-) cells and receptor cross-linking experiments, we established that CD300f amplified IL-4Rα-induced responses by augmenting IL-4/IL-13-induced signaling, mediator release, and priming. Consistently, IL-4- and aeroallergen-treated Cd300f(-/-) mice displayed decreased IgE production, chemokine expression, and inflammatory cell recruitment. Impaired responses in Cd300f(-/-) mice were not due to the inability to generate a proper Th2 response, because IL-4/IL-13 levels were markedly increased in allergen-challenged Cd300f(-/-) mice, a finding that is consistent with decreased cytokine consumption. Finally, CD300f expression was increased in monocytes and eosinophils obtained from allergic rhinitis patients. Collectively, our data highlight a previously unidentified role for CD300f in IL-4Rα-induced immune cell responses. These data provide new insights into the molecular mechanisms governing IL-4Rα-induced responses, and may provide new therapeutic tools to target IL-4 in allergy and asthma.
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24
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Ejarque-Ortiz A, Solà C, Martínez-Barriocanal Á, Schwartz S, Martín M, Peluffo H, Sayós J. The Receptor CMRF35-Like Molecule-1 (CLM-1) Enhances the Production of LPS-Induced Pro-Inflammatory Mediators during Microglial Activation. PLoS One 2015; 10:e0123928. [PMID: 25927603 PMCID: PMC4415817 DOI: 10.1371/journal.pone.0123928] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 03/09/2015] [Indexed: 12/02/2022] Open
Abstract
CMRF35-like molecule-1 (CLM-1) belongs to a receptor family mainly expressed in myeloid cells that include activating and inhibitory receptors. CLM-1 contains two ITIMs and a single immunoreceptor tyrosine-based switch motif (ITSM), although also displays a binding site for p85α regulatory subunit of PI3K. By using murine primary microglial cultures, we show the presence of all CLM members in microglial cells and characterize the expression of CLM-1 both in basal conditions and during microglial activation. The TLR4 agonist lipopolysaccharide (LPS) and the TLR3 agonist polyinosinic–polycytidylic acid (Poly I:C) induce an increase in microglial CLM-1 mRNA levels in vitro, whereas the TLR2/6 heterodimer agonist peptidoglycan (PGN) produces a marked decrease. In this study we also describe a new soluble isoform of CLM-1 that is detected at mRNA and protein levels in basal conditions in primary microglial cultures. Interestingly, CLM-1 engagement enhances the transcription of the pro-inflammatory mediators TNFα, COX-2 and NOS-2 in microglial cells challenged with LPS. These results reveal that CLM-1 can acts as a co-activating receptor and suggest that this receptor could play a key role in the regulation of microglial activation.
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Affiliation(s)
- Aroa Ejarque-Ortiz
- Immunobiology Group, CIBBIM-Nanomedicine Program, Hospital Universitari Vall d’Hebrón, Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBBER-BBN), Instituto de Salud Carlos III, Barcelona, Spain
- * E-mail: (AEO); (JS)
| | - Carme Solà
- Department of Cerebral Ischemia and Neurodegeneration, Institut d’Investigacions Biomèdiques de Barcelona-Consejo Superior de Investigaciones Científicas (CSIC), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Águeda Martínez-Barriocanal
- Immunobiology Group, CIBBIM-Nanomedicine Program, Hospital Universitari Vall d’Hebrón, Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBBER-BBN), Instituto de Salud Carlos III, Barcelona, Spain
| | - Simó Schwartz
- Drug Delivery and Targeting Group, CIBBIM-Nanomedicine Program, Hospital Universitari Vall d’Hebrón, Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBBER-BBN), Instituto de Salud Carlos III, Barcelona, Spain
| | - Margarita Martín
- Biochemistry Unit, Faculty of Medicine, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Hugo Peluffo
- Neurodegeneration Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay
| | - Joan Sayós
- Immunobiology Group, CIBBIM-Nanomedicine Program, Hospital Universitari Vall d’Hebrón, Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBBER-BBN), Instituto de Salud Carlos III, Barcelona, Spain
- * E-mail: (AEO); (JS)
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25
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Murakami Y, Tian L, Voss OH, Margulies DH, Krzewski K, Coligan JE. CD300b regulates the phagocytosis of apoptotic cells via phosphatidylserine recognition. Cell Death Differ 2014; 21:1746-57. [PMID: 25034781 DOI: 10.1038/cdd.2014.86] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 05/14/2014] [Accepted: 05/21/2014] [Indexed: 01/15/2023] Open
Abstract
The CD300 receptor family members are a group of molecules that modulate a variety of immune cell processes. We show that mouse CD300b (CLM7/LMIR5), expressed on myeloid cells, recognizes outer membrane-exposed phosphatidylserine (PS) and does not, as previously reported, directly recognize TIM1 or TIM4. CD300b accumulates in phagocytic cups along with F-actin at apoptotic cell contacts, thereby facilitating their engulfment. The CD300b-mediated activation signal is conveyed through CD300b association with the adaptor molecule DAP12, and requires a functional DAP12 ITAM motif. Binding of apoptotic cells promotes the activation of the PI3K-Akt kinase pathway in macrophages, while silencing of CD300b expression diminishes PI3K-Akt kinase activation and impairs efferocytosis. Collectively, our data show that CD300b recognizes PS as a ligand, and regulates the phagocytosis of apoptotic cells via the DAP12 signaling pathway.
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Affiliation(s)
- Y Murakami
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - L Tian
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - O H Voss
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - D H Margulies
- Molecular Biology Section, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - K Krzewski
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| | - J E Coligan
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
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26
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Shik D, Moshkovits I, Karo-Atar D, Reichman H, Munitz A. Interleukin-33 requires CMRF35-like molecule-1 expression for induction of myeloid cell activation. Allergy 2014; 69:719-29. [PMID: 24735452 DOI: 10.1111/all.12388] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2014] [Indexed: 01/21/2023]
Abstract
BACKGROUND IL-33 is a potent activator of various cells involved in allergic inflammation, including eosinophils and mast cells. Despite its critical role in Th2 disease settings, endogenous molecular mechanisms that may regulate IL-33-induced responses remain to be defined. We have recently shown that eosinophils express CMRF35-like molecule (CLM)-1. Yet, the role of CLM-1 in regulating eosinophil functions is still elusive. METHODS CLM-1 and CLM-8 expression and cellular localization were assessed in murine bone marrow-derived and/or peritoneal cells at baseline and following IL-33 stimulation (flow cytometry, western blot). IL-33-induced mediator release and signaling were assessed in wild-type (wt) and Clm1(-/-) cells and mice. RESULTS BM-derived eosinophils express high levels of glycosylated CLM-1. IL-33 induced a rapid, specific, concentration- and time-dependent upregulation of CLM-1 in eosinophils (in vitro and in vivo). Clm1(-/-) eosinophils secreted less IL-33-induced mediators than wt eosinophils. CLM-1 co-localized to ST2 following IL-33 stimulation and was required for IL-33-induced NFκB and p38 phosphorylation. Th2 cytokine (e.g., IL-5, IL-13) and chemokine (e.g., eotaxins, CCL2) secretion was markedly attenuated in IL-33-treated Clm1(-/-) mice. Subsequently, IL-33-challenged mice displayed reduced infiltration of mast cells, macrophages, neutrophils, and B cells. Despite the markedly impaired IL-33-induced eotaxin expression in Clm1(-/-) mice, eosinophil accumulation was similar in wt and Clm1(-/-) mice, due to hyperchemotactic responses of Clm1(-/-) eosinophils. CONCLUSIONS CLM-1 is a novel regulator of IL-33-induced eosinophil activation. These data contribute to the understanding of endogenous molecular mechanisms regulating IL-33-induced responses and may ultimately lead to receptor-based tools for future therapeutic intervention in IL-33-associated diseases.
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Affiliation(s)
- D. Shik
- Department of Clinical Microbiology and Immunology; The Sackler School of Medicine; Tel-Aviv University; Ramat Aviv Israel
| | - I. Moshkovits
- Department of Clinical Microbiology and Immunology; The Sackler School of Medicine; Tel-Aviv University; Ramat Aviv Israel
| | - D. Karo-Atar
- Department of Clinical Microbiology and Immunology; The Sackler School of Medicine; Tel-Aviv University; Ramat Aviv Israel
| | - H. Reichman
- Department of Clinical Microbiology and Immunology; The Sackler School of Medicine; Tel-Aviv University; Ramat Aviv Israel
| | - A. Munitz
- Department of Clinical Microbiology and Immunology; The Sackler School of Medicine; Tel-Aviv University; Ramat Aviv Israel
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27
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Moshkovits I, Shik D, Itan M, Karo-Atar D, Bernshtein B, Hershko AY, van Lookeren Campagne M, Munitz A. CMRF35-like molecule 1 (CLM-1) regulates eosinophil homeostasis by suppressing cellular chemotaxis. Mucosal Immunol 2014; 7:292-303. [PMID: 23820751 DOI: 10.1038/mi.2013.47] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 06/04/2013] [Indexed: 02/04/2023]
Abstract
Eosinophil accumulation in health and disease is a hallmark characteristic of mucosal immunity and type 2 helper T cell (Th2) inflammation. Eotaxin-induced CCR3 (chemokine (C-C motif) receptor 3) signaling has a critical role in eosinophil chemotactic responses. Nevertheless, the expressions of immunoreceptor tyrosine-based inhibitory motif-bearing receptors such as CMRF35-like molecule-1 (CLM-1) and their ability to govern eosinophil migration are largely unknown. We now report that CLM-1 (but not CLM-8) is highly and distinctly expressed by colonic and adipose tissue eosinophils. Furthermore, Clm1⁻/⁻ mice display elevated baseline tissue eosinophilia. CLM-1 negatively regulated eotaxin-induced eosinophil responses including eosinophil chemotaxis, actin polymerization, calcium influx, and extracellular signal-regulated kinase (ERK)-1/2, but not p38 phosphorylation. Addition of CLM-1 ligand (e.g., phosphatidylserine) rendered wild-type eosinophils hypochemotactic in vitro and blockade of CLM-1/ligand interactions rendered wild-type eosinophils hyperchemotactic in vitro and in vivo in a model of allergic airway disease. Interestingly, suppression of cellular recruitment via CLM-1 was specific to eosinophils and eotaxin, as leukotriene B₄ (LTB₄)- and macrophage inflammatory protein-1α (MIP-1α)-induced eosinophil and neutrophil migration were not negatively regulated by CLM-1. Finally, peripheral blood eosinophils obtained from allergic rhinitis patients displayed elevated CLM-1/CD300f levels. These data highlight CLM-1 as a novel regulator of eosinophil homeostasis and demonstrate that eosinophil accumulation is constantly governed by CLM-1, which negatively regulates eotaxin-induced eosinophil responses.
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Affiliation(s)
- I Moshkovits
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - D Shik
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - M Itan
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - D Karo-Atar
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - B Bernshtein
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - A Y Hershko
- Laboratory of Allergy and Clinical Immunology, Department of Medicine, The Herbert Center of Mast Cell Disorders, Meir Medical Center, Kfar Saba, Israel
| | | | - A Munitz
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
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28
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Do inhibitory immune receptors play a role in the etiology of autoimmune disease? Clin Immunol 2013; 150:31-42. [PMID: 24333531 DOI: 10.1016/j.clim.2013.11.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 11/07/2013] [Accepted: 11/10/2013] [Indexed: 12/21/2022]
Abstract
Inhibitory receptors are thought to be important in balancing immune responses. The general assumption is that lack of inhibition predisposes for autoimmune diseases. As reviewed here, various experimental and clinical data support this assumption. However, in humans genetic evidence implicates only a limited number of inhibitory receptors. GWAS have established common variation in a few inhibitory receptor genes, such as FCγRIIB, PD-1 and CTLA-4 as risk factors. The question arises whether inhibitory receptor function is a major determinant of autoimmune disease. In this respect, the finding that genetic variation in CSK and PTPN22 is strongly associated with multiple autoimmune diseases is of interest. We propose a model in which the molecules encoded by these genes are downstream of inhibitory receptors. We conclude that common genetic variation of inhibitory receptors, with few exceptions, is not a determining factor for autoimmunity in humans. However, common downstream signaling pathways are.
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29
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Abstract
The CD300 family of molecules modulates a broad and diverse array of immune cell processes via their paired activating and inhibitory receptor functions. The description that CD300 molecules are able to recognize lipids, such as extracellular ceramide, phosphatidylserine, and phosphatidylethanolamine, that are exposed on the outer leaflet of the plasma membrane of dead and activated cells has opened a new field of research. Through their binding to lipids and other ligands, this family of receptors is poised to have a significant role in complex biological processes and in the host response to severe pathological conditions. Indeed, published data have demonstrated their participation in the pathogenesis of several disease states. Moreover, this family of receptors has great potential as targets for diagnosis and therapeutic purposes in infectious diseases, allergies, cancer, and other pathological situations. For instance, one member of the family, CD300a, has been studied as a possible biomarker. Here, a review is provided on the cellular distribution of the human and mouse families of receptors, the stimuli that regulate their expression, their ability to tune leukocyte function and immune responses, their signaling pathways, ligand recognition, and their clinical relevance.
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30
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Brown IR. CSSI workshop in Brazil highlights "Stress Responses in the Nervous System" in relation to neurodegenerative diseases and neuroprotection. Cell Stress Chaperones 2012; 17:657-60. [PMID: 22886590 PMCID: PMC3468679 DOI: 10.1007/s12192-012-0366-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 07/30/2012] [Indexed: 11/28/2022] Open
Abstract
A review is provided of the two neuroscience sessions entitled "Stress Responses in the Nervous System" that were presented at the ninth Cell Stress Society International Workshop on the "Molecular Biology of the Stress Response" held in Port Alegre, Brazil, May 27-30, 2012. The sessions were organized and chaired by Ian R. Brown (Toronto, Canada) and Maria Estela Andrés (Santiago, Chile).
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Affiliation(s)
- Ian R Brown
- Centre for the Neurobiology of Stress, Department of Biological Sciences, University of Toronto-Scarborough, 1265 Military Trail, Toronto, Ontario, Canada.
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31
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Izawa K, Yamanishi Y, Maehara A, Takahashi M, Isobe M, Ito S, Kaitani A, Matsukawa T, Matsuoka T, Nakahara F, Oki T, Kiyonari H, Abe T, Okumura K, Kitamura T, Kitaura J. The receptor LMIR3 negatively regulates mast cell activation and allergic responses by binding to extracellular ceramide. Immunity 2012; 37:827-39. [PMID: 23123064 DOI: 10.1016/j.immuni.2012.08.018] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Accepted: 08/06/2012] [Indexed: 11/24/2022]
Abstract
Mast cells (MCs) are key effector cells in allergic reactions. However, the inhibitory mechanism that prevents excessive activation of MCs remains elusive. Here we show that leukocyte mono-immunoglobulin-like receptor 3 (LMIR3; also called CD300f) is a negative regulator of MC activation in vivo. LMIR3 deficiency exacerbated MC-dependent allergic responses in mice, including anaphylaxis, airway inflammation, and dermatitis. Both physical binding and functional reporter assays via an extracellular domain of LMIR3 showed that several extracellular lipids (including ceramide) and lipoproteins were possible ligands for LMIR3. Importantly, MCs were frequently surrounded by extracellular ceramide in vivo. Upon engagement of high-affinity immunoglobulin E receptor, extracellular ceramide-LMIR3 binding inhibited MC activation via immunoreceptor tyrosine-based inhibitory and switch motifs of LMIR3. Moreover, pretreatment with LMIR3-Fc fusion protein or antibody against either ceramide or LMIR3 interfered with this binding in vivo, thereby exacerbating passive cutaneous anaphylaxis. Thus, the interaction between extracellular ceramide and LMIR3 suppressed MC-dependent allergic responses.
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Affiliation(s)
- Kumi Izawa
- Division of Cellular Therapy, Advanced Clinical Research Center, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
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32
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CD300 molecule regulation of human dendritic cell functions. Immunol Lett 2012; 149:93-100. [PMID: 23072861 DOI: 10.1016/j.imlet.2012.10.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 10/02/2012] [Accepted: 10/05/2012] [Indexed: 11/24/2022]
Abstract
Dendritic cells (DC) are a heterogeneous population of leucocytes which play a key role in initiating and modulating immune responses. The human CD300 family consists of six immunoregulatory leucocyte membrane molecules that regulate cellular activity including differentiation, viability, cytokine and chemokine secretion, phagocytosis and chemotaxis. Recent work has identified polar lipids as probable ligands for these molecules in keeping with the known evolutionary conservation of this family. CD300 molecules are all expressed by DC; CD300b, d, e and f are restricted to different subpopulations of the myeloid DC lineage. They have been shown to regulate DC function both in vitro and in vivo. In addition DC are able to regulate their CD300 expression in an autocrine manner. The potential to form different CD300 heterodimers adds further complexity to their role in fine tuning DC function. Expression of CD300 molecules is altered in a number of diseases including many where DC are implicated in the pathogenesis. CD300 antibodies have been demonstrated to have significant therapeutic effect in animal models. The mechanisms underlying the immunoregulatory effects of the CD300 family are complex. Deciphering their physiology will allow effective targeting of these molecules as novel therapies in a wide variety of inflammatory diseases.
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33
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Walk J, Westerlaken GHA, van Uden NO, Belderbos ME, Meyaard L, Bont LJ. Inhibitory receptor expression on neonatal immune cells. Clin Exp Immunol 2012; 169:164-71. [PMID: 22774991 DOI: 10.1111/j.1365-2249.2012.04599.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Neonates are born with quantitative and qualitative defects in both adaptive and innate immune responses. The immune system is regulated by several mechanisms, including the signalling of inhibitory receptors. Increased expression of inhibitory receptors may result in a higher threshold for activation and suppressed function of neonatal cells. The aim of this study was to determine whether the expression of seven inhibitory receptors is increased on neonatal immune cells compared to adult immune cells. In a healthy birth cohort, we examined the expression of seven inhibitory immune receptors on neonatal neutrophils, monocytes, natural killer (NK) cells, CD4(+) and CD8(+)T cells. The expression of leucocyte-associated immunoglobulin (Ig)-like receptor-1 (LAIR-1), signal inhibitory receptor on leucocytes-1 (SIRL-1), CD31, signal-regulatory protein alpha (SIRPα), Siglec-9, CD200R, immune receptor expressed on myeloid cells-1 (IREM-1) and the membrane-bound ligand CD200 was studied by flow cytometry on leucocytes in cord blood (n = 14), neonatal venous blood (n = 24) and adult venous blood (n = 22). Expression of LAIR-1, CD31 and CD200 was increased consistently across all neonatal T cell subsets. Neonatal monocytes exhibited decreased expression of LAIR-1 and IREM-1 compared to adults. Furthermore, cord blood and neonatal venous blood samples contained a distinct LAIR-1-positive neutrophil population, which was not detected in adult blood. We demonstrated distinct expression of inhibitory receptors on neonatal peripheral blood immune cells in a healthy birth cohort. This is the first evidence that inhibitory receptors play a role in regulation of the neonatal immune system. Consistently increased inhibitory receptor expression on T cells may be an important mechanism in preventing the development of allergy and autoimmunity.
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Affiliation(s)
- J Walk
- Department of Paediatrics, Wilhelmina Children's Hospital, Utrecht, The Netherlands
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Stimulation of FasL induces production of proinflammatory mediators through activation of mitogen-activated protein kinases and nuclear factor-κB in THP-1 cells. Inflammation 2012; 35:1-10. [PMID: 21152963 DOI: 10.1007/s10753-010-9283-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
FasL is a member of the tumor necrosis factor (TNF) superfamily involved in the various immune reactions such as activation-induced cell death, cytotoxic effector function, and establishment of immune privileged sites through its interaction with Fas. On the other hand, FasL is known to transmit a reverse signal that serves as a T cell co-stimulatory signal. However, the role of FasL-mediated reverse signaling in macrophage function has not been investigated. In order to investigate the presence of FasL-mediated signaling in macrophages, the human macrophage-like cell line THP-1 was analyzed after treatment with FasL ligating agents such as recombinant Fas:Fc fusion protein or anti-FasL monoclonal antibody. Stimulation of FasL induced the expression of proinflammatory mediators such as matrix metalloproteinase-9, TNF-α, and IL-8. The specificity of the reaction was confirmed by the transfection of the FasL-specific siRNAs, which suppressed FasL expression as well as the production of proinflammatory mediators. Utilization of various inhibitors of signaling adaptors and ELISA-base nuclear factor (NF)-κB binding assay demonstrated that the signaling initiated from FasL is mediated by mitogen-activated protein kinases including extracellular signal-regulated kinase, p38, and c-Jun N-terminal kinase which induce subsequent activation of NF-κB. These data indicate that membrane expression of FasL and its interaction with its counterpart may contribute to the inflammatory activation of macrophages during immune reactions or pathogenesis of chronic inflammatory diseases.
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Kim JK, Lee SM, Suk K, Lee WH. Synthetic peptides containing ITIM-like domains block expression of inflammatory mediators and migration/invasion of cancer cells through activation of SHP-1 and PI3K. Cancer Invest 2012; 30:364-71. [PMID: 22571339 DOI: 10.3109/07357907.2012.664671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Increasing evidence supports that inflammation is closely associated with the development of cancer. In an effort to develop synthetic peptides that can suppress the inflammatory activation of cancer cells, decapeptides representing immunoreceptor tyrosine-based inhibitory motif (ITIM)-like sequences of immune receptor expressed on myeloid cells-1 (IREM-1) were tested for their anti-inflammatory effects in cancer cell lines. One (named TAT-YADL) out of the five synthetic peptides tested exhibited inhibitory effects on the expression of inflammatory mediators as well as invasion and migration. The inhibitory activities of the synthetic peptides required activation of SH2-containing protein tyrosine phosphatase-1 (SHP-1) and phosphoinositide 3-kinase (PI3K).
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Affiliation(s)
- Jae-Kwan Kim
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu, Korea
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Nakahashi-Oda C, Tahara-Hanaoka S, Shoji M, Okoshi Y, Nakano-Yokomizo T, Ohkohchi N, Yasui T, Kikutani H, Honda SI, Shibuya K, Nagata S, Shibuya A. Apoptotic cells suppress mast cell inflammatory responses via the CD300a immunoreceptor. ACTA ACUST UNITED AC 2012; 209:1493-503. [PMID: 22826299 PMCID: PMC3409498 DOI: 10.1084/jem.20120096] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After cecal ligation and puncture, mice lacking the phosphatidylserine receptor CD300a on mast cells show more neutrophil recruitment to the peritoneal cavity, improved bacterial clearance, and extended survival. When a cell undergoes apoptosis, phosphatidylserine (PS) is exposed on the outer leaflet of the plasma membrane. PS acts as an “eat-me” signal to direct phagocytes expressing PS receptors to engulf the apoptotic cell. We recently reported that the immunoreceptor CD300a, which is expressed on myeloid cells, is a PS receptor. We show that CD300a does not facilitate macrophage phagocytosis of apoptotic cells. Instead, CD300a delivers an inhibitory signal in mast cells to suppress production of LPS-induced inflammatory cytokines and chemokines. After cecal ligation and puncture (CLP), when a large number of cells undergo apoptosis in the peritoneal cavity, CD300a-deficient peritoneal mast cells produced more chemoattractant and recruited more neutrophils than did wild-type (WT) mast cells. As a result, CD300a-deficient mice showed increased neutrophil recruitment and improved bacterial clearance in the peritoneal cavity, and survived longer than WT mice. Antibody blockade of CD300a–PS interactions improved bacterial clearance and extended survival of WT mice subjected to CLP. These results indicated that CD300a is a nonphagocytic PS receptor that regulates mast cell inflammatory responses to microbial infections.
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Affiliation(s)
- Chigusa Nakahashi-Oda
- Department of Immunology, Division of Biomedical Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
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Lee SM, Suk K, Lee WH. Synthetic peptides containing ITIM-like sequences of IREM-1 (CD300F) differentially regulate MyD88 and TRIF-mediated TLR signalling through activation of SHP and/or PI3K. Clin Exp Immunol 2012; 167:438-46. [PMID: 22288587 DOI: 10.1111/j.1365-2249.2011.04528.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The immune receptor expressed on myeloid cells 1 (IREM-1/CD300F) has been shown to inhibit various inflammatory processes in myeloid cells, such as macrophages and mast cells. IREM-1 exerts its inhibitory effect through its intracellular immunoreceptor tyrosine-based inhibition motifs (ITIMs). In order to generate immunomodulatory molecules that can regulate the inflammatory activation of macrophages, decapeptides representing each of the five ITIM-like sequences in the cytoplasmic tail of IREM-1 were synthesized in conjugation with human immunodeficiency virus-transactivator of transcription (HIV-TAT(48-57)), which was added to promote internalization of the peptides. Interestingly, all these TAT-ITIM fusion peptides inhibited Toll-like receptor (TLR)-mediated production of proinflammatory molecules, including matrix metalloproteinase (MMP)-9, tumour necrosis factor (TNF)-α, monocyte chemotactic protein-1 (MCP-1) and interleukin (IL)-8. When various TLR ligands were used to stimulate the human macrophage-like cell line human acute monocytic leukaemia cell line (THP)-1, the TAT-ITIM peptides blocked both myeloid differentiation factor 88 (MyD88) and Toll-interleukin 1 receptor (TIR)-domain-containing adapter-inducing interferon-β (TRIF)-mediated TLR signalling pathways. Utilization of specific inhibitors and detection of the active form of signalling adaptors by Western blot analysis further demonstrated that the inhibitory effects of these TAT-ITIM peptides require activation of Src homology 2 (SH2)-containing tyrosine phosphatase (SHP) and/or phosphoinositide 3-kinase (PI3K). These data indicate that these synthetic peptides may be used to regulate immune responses that involve TLR-mediated inflammatory activation of macrophages.
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Affiliation(s)
- S-M Lee
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu, Korea
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Kim EJ, Lee SM, Suk K, Lee WH. CD300a and CD300f differentially regulate the MyD88 and TRIF-mediated TLR signalling pathways through activation of SHP-1 and/or SHP-2 in human monocytic cell lines. Immunology 2012; 135:226-35. [PMID: 22043923 DOI: 10.1111/j.1365-2567.2011.03528.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
CD300a, a membrane protein expressed on myeloid lineages and specific subsets of CD4(+) T cells, has been reported to have inhibitory activities in cellular activation. However, the role of CD300a in Toll-like receptor (TLR) -mediated macrophage activation has not been investigated. The human monocytic cell lines THP-1 and U937 were stimulated with various TLR ligands after triggering of CD300a with specific monoclonal antibody. Interestingly, CD300a blocked TLR4-mediated and TLR9-mediated expression of pro-inflammatory mediators without affecting TLR3-mediated events. In contrast, CD300f, another member of the CD300 family, blocked the activation of cells induced by all TLR ligands. A transient transfection assay using luciferase reporter gene under the regulation of nuclear factor-κB binding sites indicated that co-transfection of CD300f blocked reporter expression induced by over-expression of both myeloid differentiation factor 88 (MyD88) and toll-interleukin 1 receptor-domain-containing adapter-inducing interferon-β (TRIF), whereas CD300a blocked only MyD88-induced events. Synthetic peptides representing immunoreceptor tyrosine-based inhibitory motifs of CD300a or CD300f mimicked the differential inhibition patterns of their original molecules. The use of various signalling inhibitors and Western blotting analysis revealed that TLR9/MyD88-mediated signalling was regulated mainly by SH2-containing tyrosine phosphatase 1 (SHP-1), which could be activated by CD300a or CD300f. In contrast, regulation of the TLR3/TRIF-mediated pathway required the combined action of SHP-1 and SHP-2, which could be accomplished by CD300f but not CD300a. These data indicate that CD300a and CD300f regulate the MyD88 and TRIF-mediated TLR signalling pathways through differential activation of SHP-1 and SHP-2.
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Affiliation(s)
- Eun-Ju Kim
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu, Department of Pharmacology, Brain Science and Engineering Institute, School of Medicine, Kyungpook National University, Daegu, Korea
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Human CD300a binds to phosphatidylethanolamine and phosphatidylserine, and modulates the phagocytosis of dead cells. Blood 2012; 119:2799-809. [PMID: 22302738 DOI: 10.1182/blood-2011-08-372425] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
CD300a is an immunoreceptor tyrosine-based inhibitory motif (ITIM) containing molecule that belongs to the CD300 family of paired activating/inhibitory receptors. It has been shown that its ligation inhibits activation signals on cells of both myeloid and lymphoid lineages. The ligands for CD300a have not been identified. Here, we show that a CD300a-Ig fusion protein specifically binds to apoptotic cells that are evolutionary apart, such as human and insect cells, suggesting that the ligand has to be conserved. Using surface plasmon resonance, ultracentrifugation, ELISA, and reporter cell assays, we identified phosphatidylethanolamine (PE) and phosphatidylserine (PS), 2 phospholipids that translocate to the outer leaflet of the plasma membrane of dead cells, as the ligands for CD300a. Mutational and structural modeling studies identified residues that are involved in the binding of CD300a to PE and PS and that form a cavity where the hydrophilic heads of PE and PS, can penetrate. CD300a down-regulates the uptake of apoptotic cells by macrophages and its ectopic expression in CD300a-negative cell lines also decreased the engulfment of dead cells. Collectively, our results indicate that PE and PS are ligands for CD300a, and that this interaction plays an important role in regulating the removal of dead cells.
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Nakahashi-Oda C, Tahara-Hanaoka S, Honda SI, Shibuya K, Shibuya A. Identification of phosphatidylserine as a ligand for the CD300a immunoreceptor. Biochem Biophys Res Commun 2012; 417:646-50. [DOI: 10.1016/j.bbrc.2011.12.025] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 12/06/2011] [Indexed: 11/29/2022]
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Lee SM, Kim EJ, Suk K, Lee WH. Synthetic peptides containing ITIM-like sequences of IREM-1 inhibit BAFF-mediated regulation of interleukin-8 expression and phagocytosis through SHP-1 and/or PI3K. Immunology 2011; 134:224-33. [PMID: 21896016 DOI: 10.1111/j.1365-2567.2011.03481.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
B-cell activation factor of the tumour necrosis factor family (BAFF), an important regulator of B-cell survival, has recently been found to be expressed on the surface of murine and human macrophages and engagement with its receptor was shown to trigger induction of pro-inflammatory mediators and block phagocytic activity. In an effort to generate immunomodulatory agents that can regulate BAFF-mediated signal, decapeptides representing the intracellular immunoreceptor tyrosine-based inhibitory motifs (ITIMs) of immune receptor expressed on myeloid cells (IREM)-1, an inhibitory transmembrane protein expressed on myeloid cells, were synthesized in conjugation with HIV-transactivator of transcription (TAT)(48-57,) which facilitates the internalization of peptides into cells. Interestingly, all five of these synthetic peptides, representing the five ITIM-like sequences present in the cytoplasmic tail of IREM-1, exhibited inhibitory action against BAFF-mediated induction of matrix metalloproteinase-9 and interleukin-8 expression. Inhibitor assay and immunoprecipitation assay followed by Western blotting demonstrated that the inhibitory action was mediated by Src homology 2 (SH2)-containing tyrosine phosphatase (SHP)-1 and/or phosphoinositide 3-kinase (PI3K). ELISA-based nuclear factor-κB DNA binding assay observed that the synthetic peptides blocked the activation of nuclear factor-κB in an SHP-1 and phosphoinositide 3-kinase-dependent manner. Three of these synthetic peptides exhibited varying degrees of inhibitory action against BAFF-mediated blockage of phagocytosis in a SHP-1 and PI3K-dependent manner. These data indicate that the synthetic peptides are capable of blocking BAFF-mediated regulation of macrophage activities through the activation of SHP-1 and PI3K as well as inhibition of nuclear factor-κB activation.
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Affiliation(s)
- Sang-Min Lee
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu, Korea
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Peluffo H, Alí-Ruiz D, Ejarque-Ortíz A, Heras-Alvarez V, Comas-Casellas E, Martínez-Barriocanal A, Kamaid A, Alvarez-Errico D, Negro ML, Lago N, Schwartz S, Villaverde A, Sayós J. Overexpression of the immunoreceptor CD300f has a neuroprotective role in a model of acute brain injury. Brain Pathol 2011; 22:318-28. [PMID: 21951326 DOI: 10.1111/j.1750-3639.2011.00537.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
It is well known that cell surface immune receptors play a critical role in regulating immune and inflammatory processes in the central nervous system (CNS). We have analyzed the function of cluster of differentiation (CD)300f immunoreceptor in a model of excitotoxic rat brain damage. First, to explore the presence of endogenous ligand(s) for this receptor we used a human CD300f-Ig soluble protein and confocal microscopy, showing specific staining mainly in CNS white matter and on the surface of oligodendrocytes and certain astrocytes. Next, we demonstrated in a model of in vivo rat brain excitotoxic damage that the overexpression of human CD300f induced a significant reduction in the lesion volume. To validate these results, we cloned the rat ortholog of CD300f protein (rCD300f). The overexpression of rCD300f receptor had a comparable neuroprotective effect after the acute brain injury and a similar CNS staining pattern when stained with the rCD300f-Ig soluble protein. Interestingly, when we analyzed the expression pattern of rCD300f in brain cells by quantitative polymerase chain reaction and immunohistochemistry, we detected the expression of CD300f as expected in microglial cells, but also in oligodendrocytes and neurons. These data suggest that the neuroprotective role of CD300f would be the result of a complex network of cell interactions.
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Affiliation(s)
- Hugo Peluffo
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay.
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Wu Y, Zhu X, Li N, Chen T, Yang M, Yao M, Liu X, Jin B, Wang X, Cao X. CMRF-35–Like Molecule 3 Preferentially Promotes TLR9-Triggered Proinflammatory Cytokine Production in Macrophages by Enhancing TNF Receptor-Associated Factor 6 Ubiquitination. THE JOURNAL OF IMMUNOLOGY 2011; 187:4881-9. [DOI: 10.4049/jimmunol.1003806] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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44
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Choi SC, Simhadri VR, Tian L, Gil-Krzewska A, Krzewski K, Borrego F, Coligan JE. Cutting edge: mouse CD300f (CMRF-35-like molecule-1) recognizes outer membrane-exposed phosphatidylserine and can promote phagocytosis. THE JOURNAL OF IMMUNOLOGY 2011; 187:3483-7. [PMID: 21865548 DOI: 10.4049/jimmunol.1101549] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Reportedly, CD300f negatively regulates interactions between dendritic and T cells and acts as an anti-inflammatory molecule in a multiple sclerosis mouse model. We found that a CD300f/Fc chimeric protein specifically binds to apoptotic/dead splenocytes and to apoptotic cells from starved or irradiated lymphocytic cell lines, an observation extended to insect cells. CD300f also binds PMA/ionomycin-activated splenocytes and Ag-stimulated T cells, an interaction inhibited by Annexin V. By ELISA, cosedimentation, and surface plasmon resonance using phospholipid-containing liposomes, we show that CD300f preferentially binds phosphatidylserine and requires a metal ion. Exogenous expression of CD300f in cell lines results in enhanced phagocytosis of apoptotic cells. We conclude that expression of CD300f conveys additional capacity to recognize phosphatidylserine to myeloid cells. The result of this recognition may vary with the overall qualitative and quantitative receptor content, as well as signaling capacity of the expressing effector cell, but enhanced phagocytosis is one measurable outcome.
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Affiliation(s)
- Seung-Chul Choi
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA
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Cannon JP, O'Driscoll M, Litman GW. Specific lipid recognition is a general feature of CD300 and TREM molecules. Immunogenetics 2011; 64:39-47. [PMID: 21800138 DOI: 10.1007/s00251-011-0562-4] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 07/19/2011] [Indexed: 10/17/2022]
Abstract
CD300, triggering receptor expressed on myeloid cells (TREM), and TREM-like (TREML) receptors are important regulators of the mammalian immune response. Homologs of these receptors, which occur in activating and inhibitory transmembrane forms as well as soluble variants, are found throughout the jawed vertebrates. Specific ligands for most members of these receptor families remain elusive. We report here that at least 11 separate receptors from the CD300, TREM, and TREML families engage in robust and specific interactions with major polar lipids found in prokaryotic and eukaryotic cell membranes. Both soluble and membrane-bound receptor forms exhibit lipid interactions in the solid phase as well as in a physiological signaling context. Overlapping but distinctive patterns of receptor specificity suggest that the CD300/TREM system as a whole may discriminate immunological stimuli based on lipid signatures, thereby influencing downstream responses.
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Affiliation(s)
- John P Cannon
- Department of Pediatrics, Children's Research Institute, University of South Florida, 140 Seventh Avenue South, CRI 3008, St. Petersburg, FL 33701, USA
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Lee SM, Kim EJ, Suk K, Lee WH. CD300F blocks both MyD88 and TRIF-mediated TLR signaling through activation of Src homology region 2 domain-containing phosphatase 1. THE JOURNAL OF IMMUNOLOGY 2011; 186:6296-303. [PMID: 21536801 DOI: 10.4049/jimmunol.1002184] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
CD300F is known to exhibit inhibitory activity in myeloid cells through its intracellular ITIM. To investigate the effect of CD300F stimulation on TLR signaling, the human acute monocytic leukemia cell line THP-1 was treated with CD300F-specific mAbs or two synthetic peptides that represented the ITIM-like domains of CD300F. Treatment with these agents blocked TLR2-, 3-, 4-, and 9-mediated expression of proinflammatory mediators such as IL-8 and matrix metalloproteinase-9. The luciferase reporter assay in 293T cells and Western blot analysis of THP-1 cells revealed that these inhibitory actions were effective in pathways involving MyD88 and/or TRIF of TLR signaling and associated with marked suppression of IκB kinase activation, phosphorylation/degradation of IκB, and subsequent activation of NF-κB. Use of specific inhibitors and immunoprecipitation analysis further indicated that the inhibitory effects were mediated by Src homology 2 domain-containing phosphatase-1, a protein tyrosine phosphatase with inhibitory activity in hematopoietic cells. These data indicate that CD300F is an active regulator of TLR-mediated macrophage activation through its association with Src homology 2 domain-containing phosphatase-1 and that the synthetic peptides can be applied for the regulation of immune responses that are induced by TLRs.
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Affiliation(s)
- Sang-Min Lee
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu 702-701, Korea
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Lee SM, Kim EJ, Suk K, Lee WH. BAFF and APRIL induce inflammatory activation of THP-1 cells through interaction with their conventional receptors and activation of MAPK and NF-κB. Inflamm Res 2011; 60:807-15. [PMID: 21505913 DOI: 10.1007/s00011-011-0336-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Revised: 03/05/2011] [Accepted: 04/05/2011] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND BAFF and APRIL, as closely related members of the TNF superfamily, are important regulators of B-cell survival. They share two receptors, TACI and BCMA, and BAFF can stimulate an additional receptor, BAFF-R. Although these molecules have been under intense investigation in order to identify their role in immune reactions, the effect of BAFF and APRIL on macrophage function has not been tested. METHODS The human macrophage-like cell line THP-1, which expresses BAFF/APRIL and all three of their receptors, was stimulated with recombinant human BAFF or APRIL or monoclonal antibodies against the receptors and the resulting cellular responses were investigated. Treatment of the cells with these agents induced the expression of pro-inflammatory mediators such as matrix metalloproteinase (MMP)-9 and IL-8. Suppression of the expression of these receptors using specific siRNAs resulted in the blocking of the response, confirming that these responses require specific interaction between BAFF/APRIL and their receptors. Inhibitors of MAPK and NF-κB blocked the expression of IL-8. Furthermore, inhibitors of MAPK blocked the BAFF-induced specific DNA binding activity of NF-κB. CONCLUSION These data indicate that BAFF and APRIL can induce inflammatory activation of THP-1 cells through the activation of MAPK, which leads to the subsequent activation of NF-κB.
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Affiliation(s)
- Sang-Min Lee
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu, 702-701, Korea
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Lee SM, Nam YP, Suk K, Lee WH. Immune receptor expressed on myeloid cells 1 (IREM-1) inhibits B cell activation factor (BAFF)-mediated inflammatory regulation of THP-1 cells through modulation of the activities of extracellular regulated kinase (ERK). Clin Exp Immunol 2011; 161:504-11. [PMID: 20646006 DOI: 10.1111/j.1365-2249.2010.04211.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The immune receptor expressed on myeloid cells 1 (IREM-1) has been known to regulate the activities of myeloid cells through its immunoreceptor tyrosine-based inhibition motifs (ITIMs) in its intracellular region. In order to investigate its effect on macrophage activation, a human macrophage cell line (THP-1) was tested after stimulation of its membrane-bound form of B cell activation factor (BAFF), which has been shown to modulate inflammatory activities through induction of proinflammatory mediator expression and suppression of phagocytosis. IREM-1-specific monoclonal antibodies detected the expression of high levels of IREM-1 in THP-1 cells. Cross-linking of IREM-1 with these antibodies resulted in the blockage of the BAFF-mediated expression of interleukin (IL)-8 and matrix metalloproteinase (MMP)-9 through inhibition of the activation of extracellular regulated kinase (ERK) and phosphorylation/degradation of IκB. Furthermore, cross-linking of IREM-1 also reversed the BAFF-mediated inhibition of phagocytosis. In order to demonstrate the role of ITIM in the IREM-1-mediated suppression of BAFF signalling, a decapeptide containing YADL (an ITIM in IREM-1) was fused with HIV-TAT(48-57) which was required for the internalization of the synthetic polypeptide (TAT-YADL). TAT-YADL, but not control peptides, recapitulated the effect of the anti-IREM-1 monoclonal antibody. These observations indicate that IREM-1 exerted its inhibitory effect on BAFF-medicated signalling through ITIM-mediated regulation of ERK activities in THP-1 cells.
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Affiliation(s)
- S-M Lee
- School of Life Sciences and Biotechnology, Kyungpook National University, Daegu, Korea
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