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Robinson ML, Glass DR, Duran V, Agudelo Rojas OL, Sanz AM, Consuegra M, Sahoo MK, Hartmann FJ, Bosse M, Gelvez RM, Bueno N, Pinsky BA, Montoya JG, Maecker H, Estupiñan Cardenas MI, Villar Centeno LA, Garrido EMR, Rosso F, Bendall SC, Einav S. Magnitude and kinetics of the human immune cell response associated with severe dengue progression by single-cell proteomics. SCIENCE ADVANCES 2023; 9:eade7702. [PMID: 36961888 PMCID: PMC10038348 DOI: 10.1126/sciadv.ade7702] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 02/21/2023] [Indexed: 06/17/2023]
Abstract
Approximately 5 million dengue virus-infected patients progress to a potentially life-threatening severe dengue (SD) infection annually. To identify the immune features and temporal dynamics underlying SD progression, we performed deep immune profiling by mass cytometry of PBMCs collected longitudinally from SD progressors (SDp) and uncomplicated dengue (D) patients. While D is characterized by early activation of innate immune responses, in SDp there is rapid expansion and activation of IgG-secreting plasma cells and memory and regulatory T cells. Concurrently, SDp, particularly children, demonstrate increased proinflammatory NK cells, inadequate expansion of CD16+ monocytes, and high expression of the FcγR CD64 on myeloid cells, yet a signature of diminished antigen presentation. Syndrome-specific determinants include suppressed dendritic cell abundance in shock/hemorrhage versus enriched plasma cell expansion in organ impairment. This study reveals uncoordinated immune responses in SDp and provides insights into SD pathogenesis in humans with potential implications for prediction and treatment.
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Affiliation(s)
- Makeda L. Robinson
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - David R. Glass
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Veronica Duran
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, 499 Illinois St., 4th Floor, San Francisco, CA 94158, USA
| | | | - Ana Maria Sanz
- Clinical Research Center, Fundación Valle del Lili, Cali, Colombia
| | - Monika Consuegra
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Malaya Kumar Sahoo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Felix J. Hartmann
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Marc Bosse
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Rosa Margarita Gelvez
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Nathalia Bueno
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Benjamin A. Pinsky
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jose G. Montoya
- Palo Alto Medical Foundation, Dr. Jack S. Remington Laboratory for Specialty Diagnostics, Palo Alto, CA, USA
| | - Holden Maecker
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Luis Angel Villar Centeno
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Elsa Marina Rojas Garrido
- Centro de Atención y Diagnóstico de Enfermedades Infecciosas (CDI), Fundación INFOVIDA, Bucaramanga, Colombia
| | - Fernando Rosso
- Clinical Research Center, Fundación Valle del Lili, Cali, Colombia
- Department of Internal Medicine, Division of Infectious Diseases, Fundación Valle del Lili, Cali, Colombia
| | - Sean C. Bendall
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Shirit Einav
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Chan Zuckerberg Biohub, 499 Illinois St., 4th Floor, San Francisco, CA 94158, USA
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
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2
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de Carvalho DC, Fonseca FAH, Izar MCDO, Silveira ALPA, Tuleta ID, do Amaral JB, Neves LM, Bachi ALL, França CN. Monocytes presenting a pro-inflammatory profile persist in patients submitted to a long-term pharmacological treatment after acute myocardial infarction. Front Physiol 2023; 13:1056466. [PMID: 36741809 PMCID: PMC9895791 DOI: 10.3389/fphys.2022.1056466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/29/2022] [Indexed: 01/22/2023] Open
Abstract
Introduction: Although it is broadly known that monocyte recruitment is involved in atherosclerosis development and that, in accordance with the microenvironment, these cells can be modulated into three well-known subpopulations: Classical (CD14++CD16-), intermediate (CD14++CD16+), and non-classical (CD14+CD16++), the effects of treatment with different pharmacological strategies (based on lipid-lowering and antiplatelets) after acute myocardial infarction upon the monocytes modulation and the role of the chemokine receptors CCR2, CCR5 and CX3CR1 in this context, are poorly understood. Methods: In this study, patients [n = 148, both men (n = 105, 71%) and women (n = 43, 29%)] submitted to treatment with a 2×2 factorial design, in which they received rosuvastatin 20 mg or simvastatin 40 mg plus ezetimibe 10 mg, as well as ticagrelor 90 mg or clopidogrel 75 mg were enrolled. Monocyte subsets were analyzed by flow cytometry at baseline (BL), and after one (1-M) and 6 months (6-M) of treatment. Results: Firstly, our results showed that, regardless of the treatment received, higher percentages of classical monocytes and lower of non-classical monocytes were found at the 6-M time point than BL values, whilst the percentage of intermediate monocytes was higher in all time points assessed than the other subsets. There were reductions in the CCR2 expression by non-classical and intermediate monocytes, without differences for the classical subtype. Concerning the CCR5 expression, there were reductions in the three monocyte subtypes, whereas the CX3CR1 expression increased both in intermediate and classical monocytes, without differences for non-classical monocytes. In relation to the treatment received, a higher percentage of intermediate monocytes at the 6-M time point than the values BL was observed in the group treated with simvastatin + ezetimibe + clopidogrel. No significant differences were found concerning non-classical, intermediate, and classical monocytes, for CCR2, CCR5, and CX3CR1 in the four treatment arms. Conclusion: Taken together, our results demonstrated that even under lipid-lowering and antiplatelet therapy for 6 months, the inflammatory phenotype of monocytes still persisted in the patients enrolled in this study.
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Affiliation(s)
| | | | | | | | - Izabela Dorota Tuleta
- Department of Medicine-Cardiology, Albert Einstein College of Medicine, New York, NY, United States
| | - Jônatas Bussador do Amaral
- ENT Research Laboratory, Otorhinolaryngology-Head and Neck Surgery Department, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Lucas Melo Neves
- Post Graduation Program in Health Sciences, Santo Amaro University, Sao Paulo, Brazil
| | | | - Carolina Nunes França
- Post Graduation Program in Health Sciences, Santo Amaro University, Sao Paulo, Brazil,*Correspondence: Carolina Nunes França,
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Vinci R, Pedicino D, Bonanni A, D'Aiello A, Severino A, Pisano E, Ponzo M, Canonico F, Ciampi P, Russo G, Di Sario M, Montone RA, Trani C, Conte C, Grimaldi MC, Cribari F, Massetti M, Crea F, Liuzzo G. A Novel Monocyte Subset as a Unique Signature of Atherosclerotic Plaque Rupture. Front Cell Dev Biol 2021; 9:753223. [PMID: 34712669 PMCID: PMC8545820 DOI: 10.3389/fcell.2021.753223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/03/2021] [Indexed: 12/28/2022] Open
Abstract
The evaluation of monocyte subset distribution among acute coronary syndrome (ACS) patients according to culprit coronary plaque morphology has never been explored. We evaluated whether there were significant differences in frequency of circulating monocyte subsets isolated from ACS patients according to optical coherence tomography (OCT) investigation of plaque erosion and rupture. We enrolled 74 patients with non-ST-elevation ACS (NSTE-ACS), 21 of them underwent OCT investigation of the culprit coronary plaque and local macrophage infiltration (MØI) assessment. As control, we enrolled 30 chronic coronary syndrome (CCS) patients. We assessed the frequency of monocyte subsets in the whole study population, in reliance on their CD14 and CD16 expression (classical, CM: CD14++CD16–; intermediates, IM: CD14++CD16+; non-classical, NCM: CD14+CD16++). Then, we tested the effect of lipopolysaccharide (LPS) (a CD14 ligand) on peripheral blood mononuclear cells (PBMCs) of NSTE-ACS patients, quantifying the inflammatory cytokine levels in cell-culture supernatants. Our data proved that monocyte subsets isolated from NSTE-ACS patients represent a peculiar biological signature of the pathophysiological mechanism lying beneath atherosclerotic plaque with a ruptured fibrous cap (RFC) as compared with plaque erosion. Moreover, the magnitude of LPS-mediated effects on IL-1β, IL-6, and IL-10 cytokine release in cell-culture supernatants appeared to be greater in NSTE-ACS patients with RFC. Finally, we described a fourth monocyte population never explored before in this clinical setting (pre-classical monocytes, PCM: CD14+CD16–) that was prevalent in NSTE-ACS patients as compared with CCS and, especially, in patients with RFC and culprit plaque with MØI.
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Affiliation(s)
- Ramona Vinci
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Daniela Pedicino
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy.,Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Alice Bonanni
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Alessia D'Aiello
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Anna Severino
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Eugenia Pisano
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Myriana Ponzo
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Francesco Canonico
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Pellegrino Ciampi
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Giulio Russo
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Marianna Di Sario
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Rocco Antonio Montone
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Carlo Trani
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy.,Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Cristina Conte
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Maria Chiara Grimaldi
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Francesco Cribari
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - Massimo Massetti
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy.,Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Filippo Crea
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy.,Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Giovanna Liuzzo
- Department of Cardiovascular and Pneumological Sciences, Catholic University of the Sacred Heart, Rome, Italy.,Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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4
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Harden JT, Wang X, Toh J, Sang AX, Brown RA, Esquivel CO, Martinez OM, Krams SM. High-resolution phenotyping of early acute rejection reveals a conserved alloimmune signature. Cell Rep 2021; 34:108806. [PMID: 33657374 DOI: 10.1016/j.celrep.2021.108806] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 12/04/2020] [Accepted: 02/09/2021] [Indexed: 10/22/2022] Open
Abstract
Alloimmune responses in acute rejection are complex, involving multiple interacting cell types and pathways. Deep profiling of these cell types has been limited by technology that lacks the capacity to resolve this high dimensionality. Single-cell mass cytometry is used to characterize the alloimmune response in early acute rejection, measuring 37 parameters simultaneously, across multiple time points in two models: a murine cardiac and vascularized composite allotransplant (VCA). Semi-supervised hierarchical clustering is used to group related cell types defined by combinatorial expression of surface and intracellular proteins, along with markers of effector function and activation. This expression profile is mapped to visualize changes in antigen composition across cell types, revealing phenotypic signatures in alloimmune T cells, natural killer (NK) cells, and myeloid subsets that are conserved and that firmly distinguish rejecting from non-rejecting grafts. These data provide a comprehensive, high-dimensional profile of cellular rejection after allograft transplantation.
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Affiliation(s)
- James T Harden
- Department of Surgery, Division of Abdominal Transplantation, Stanford University School of Medicine, Stanford, CA, USA; Stanford Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Xi Wang
- Department of Surgery, Division of Abdominal Transplantation, Stanford University School of Medicine, Stanford, CA, USA
| | - Jiaying Toh
- Department of Surgery, Division of Abdominal Transplantation, Stanford University School of Medicine, Stanford, CA, USA; Stanford Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Adam X Sang
- Department of Surgery, Division of Abdominal Transplantation, Stanford University School of Medicine, Stanford, CA, USA
| | - Ryanne A Brown
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Carlos O Esquivel
- Department of Surgery, Division of Abdominal Transplantation, Stanford University School of Medicine, Stanford, CA, USA
| | - Olivia M Martinez
- Department of Surgery, Division of Abdominal Transplantation, Stanford University School of Medicine, Stanford, CA, USA; Stanford Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Sheri M Krams
- Department of Surgery, Division of Abdominal Transplantation, Stanford University School of Medicine, Stanford, CA, USA; Stanford Immunology, Stanford University School of Medicine, Stanford, CA, USA.
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5
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Gibellini L, De Biasi S, Paolini A, Borella R, Boraldi F, Mattioli M, Lo Tartaro D, Fidanza L, Caro‐Maldonado A, Meschiari M, Iadisernia V, Bacca E, Riva G, Cicchetti L, Quaglino D, Guaraldi G, Busani S, Girardis M, Mussini C, Cossarizza A. Altered bioenergetics and mitochondrial dysfunction of monocytes in patients with COVID-19 pneumonia. EMBO Mol Med 2020; 12:e13001. [PMID: 33078545 PMCID: PMC7645870 DOI: 10.15252/emmm.202013001] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/09/2020] [Accepted: 10/14/2020] [Indexed: 12/13/2022] Open
Abstract
In patients infected by SARS-CoV-2 who experience an exaggerated inflammation leading to pneumonia, monocytes likely play a major role but have received poor attention. Thus, we analyzed peripheral blood monocytes from patients with COVID-19 pneumonia and found that these cells show signs of altered bioenergetics and mitochondrial dysfunction, had a reduced basal and maximal respiration, reduced spare respiratory capacity, and decreased proton leak. Basal extracellular acidification rate was also diminished, suggesting reduced capability to perform aerobic glycolysis. Although COVID-19 monocytes had a reduced ability to perform oxidative burst, they were still capable of producing TNF and IFN-γ in vitro. A significantly high amount of monocytes had depolarized mitochondria and abnormal mitochondrial ultrastructure. A redistribution of monocyte subsets, with a significant expansion of intermediate/pro-inflammatory cells, and high amounts of immature monocytes were found, along with a concomitant compression of classical monocytes, and an increased expression of inhibitory checkpoints like PD-1/PD-L1. High plasma levels of several inflammatory cytokines and chemokines, including GM-CSF, IL-18, CCL2, CXCL10, and osteopontin, finally confirm the importance of monocytes in COVID-19 immunopathogenesis.
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Affiliation(s)
- Lara Gibellini
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
| | - Sara De Biasi
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
| | - Annamaria Paolini
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
| | - Rebecca Borella
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
| | - Federica Boraldi
- Department of Life SciencesUniversity of Modena and Reggio EmiliaModenaItaly
| | - Marco Mattioli
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
| | - Domenico Lo Tartaro
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
| | - Lucia Fidanza
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
| | | | - Marianna Meschiari
- Infectious Diseases ClinicsAOU Policlinico and University of Modena and Reggio EmiliaModenaItaly
| | - Vittorio Iadisernia
- Infectious Diseases ClinicsAOU Policlinico and University of Modena and Reggio EmiliaModenaItaly
| | - Erica Bacca
- Infectious Diseases ClinicsAOU Policlinico and University of Modena and Reggio EmiliaModenaItaly
| | - Giovanni Riva
- Department of Laboratory Medicine and PathologyAUSL/AOU PoliclinicoModenaItaly
| | | | - Daniela Quaglino
- Department of Life SciencesUniversity of Modena and Reggio EmiliaModenaItaly
| | - Giovanni Guaraldi
- Infectious Diseases ClinicsAOU Policlinico and University of Modena and Reggio EmiliaModenaItaly
| | - Stefano Busani
- Department of Anesthesia and Intensive CareAOU Policlinico and University of Modena and Reggio EmiliaModenaItaly
| | - Massimo Girardis
- Department of Anesthesia and Intensive CareAOU Policlinico and University of Modena and Reggio EmiliaModenaItaly
| | - Cristina Mussini
- Infectious Diseases ClinicsAOU Policlinico and University of Modena and Reggio EmiliaModenaItaly
| | - Andrea Cossarizza
- Department of Medical and Surgical Sciences for Children and AdultsUniversity of Modena and Reggio EmiliaModenaItaly
- Institute for Cardiovascular ResearchBolognaItaly
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6
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Wong ME, Jaworowski A, Hearps AC. The HIV Reservoir in Monocytes and Macrophages. Front Immunol 2019; 10:1435. [PMID: 31297114 PMCID: PMC6607932 DOI: 10.3389/fimmu.2019.01435] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/07/2019] [Indexed: 12/11/2022] Open
Abstract
In people living with HIV (PLWH) who are failing or unable to access combination antiretroviral therapy (cART), monocytes and macrophages are important drivers of pathogenesis and progression to AIDS. The relevance of the monocyte/macrophage reservoir in PLWH receiving cART is debatable as in vivo evidence for infected cells is limited and suggests the reservoir is small. Macrophages were assumed to have a moderate life span and lack self-renewing potential, but recent discoveries challenge this dogma and suggest a potentially important role of these cells as long-lived HIV reservoirs. This, combined with new HIV infection animal models, has led to a resurgence of interest in monocyte/macrophage reservoirs. Infection of non-human primates with myeloid-tropic SIV implicates monocyte/macrophage activation and infection in the brain with neurocognitive disorders, and infection of myeloid-only humanized mouse models are consistent with the potential of the monocyte/macrophage reservoir to sustain infection and be a source of rebound viremia following cART cessation. An increased resistance to HIV-induced cytopathic effects and a reduced susceptibility to some antiretroviral drugs implies macrophages may be relevant to residual replication under cART and to rebound viremia. With a reappraisal of monocyte circulation dynamics, and the development of techniques to differentiate between self-renewing tissue-resident, and monocyte-derived macrophages in different tissues, a new framework exists to contextualize and evaluate the significance and relevance of the monocyte/macrophage HIV reservoir. In this review, we discuss recent developments in monocyte and macrophage biology and appraise current and emerging techniques to quantify the reservoir. We discuss how this knowledge influences our evaluation of the myeloid HIV reservoir, the implications for HIV pathogenesis in both viremic and virologically-suppressed PLWH and the need to address the myeloid reservoir in future treatment and cure strategies.
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Affiliation(s)
- Michelle E Wong
- Central Clinical School, Monash University, Melbourne, VIC, Australia.,Life Sciences Discipline, Burnet Institute, Melbourne, VIC, Australia
| | - Anthony Jaworowski
- Chronic Inflammatory and Infectious Diseases Program, School of Health and Biomedical Sciences, Bundoora, VIC, Australia.,Department of Infectious Diseases, Monash University, Melbourne, VIC, Australia
| | - Anna C Hearps
- Life Sciences Discipline, Burnet Institute, Melbourne, VIC, Australia.,Department of Infectious Diseases, Monash University, Melbourne, VIC, Australia
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7
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Analysis of monocitary subpopulations in relation to cardiovascular risk factors. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2019; 31:152-159. [PMID: 30967277 DOI: 10.1016/j.arteri.2019.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/17/2019] [Accepted: 02/06/2019] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Monocytes play an important role in atherosclerotic progression having both pro and anti-inflammatory effects depending on different circulating monocyte subpopulations. The objective of this study is to characterize these subpopulations and their association with cardiovascular risk factors. METHODS Transversal study including 102 selected patients, mean age: 65 years-old (range 41-86), 69% males. A set of specific antibodies against classical monocytes (Mon1, CD14+CD16- CD300e+HLADR+), intermediate (Mon2, CD14+CD16+CD300e+HLADR+) and non-classical (Mon3, CD14-CD16+CD300e+HLADR+) was assayed. Three groups of patients were included: 17 asymptomatic with more than one cardiovascular risk factor (group 1), 56 subjects asymptomatic but with vascular pathology assessed by ultrasound or microalbuminuria (group 2) and 19 patients with a previous atherothrombotic event (group 3). The cardiovascular risk was determined by Framingham and REGICOR scores. RESULTS An association between study groups and the percentage of Mon1 and Mon2 was observed (ANOVA, p<.05), being independent of age and sex for Mon2. Likewise Mon1 and Mon2 subpopulations were associated with cardiovascular adverse events (β=0.86, p=.02 y β=0.1 p=.002, respectively), independently of age and sex in the case of Mon2. Moreover the percentage of Mon3 was associated with the presence of several cardiovascular risk factors (β=0.21, p=.04) in the univariate analysis. In addition, there was a correlation between the levels of Mon1 and Mon2 and leukocytes (r=0.7, p<.001 and r=0.26, p=.01, respectively). CONCLUSIONS The analysis of monocyte subpopulations may be clinically useful to stratify the inflammatory profile related to the different cardiovascular risk groups.
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8
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Khalo IV, Kozyreva VS, Vakhrushev RV, Patlai DS, Shilova AN, Karpenko AA, Yurkin MA, Moskalensky AE, Strokotov DI, Maltsev VP, Chernyshev AV. Calibration-free quantitative immunoassay by flow cytometry: Theoretical consideration and practical implementation for IgG antibody binding to CD14 receptors on human leukocytes. Cytometry A 2018; 93:695-705. [PMID: 30110130 DOI: 10.1002/cyto.a.23494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 03/28/2018] [Accepted: 04/26/2018] [Indexed: 12/18/2022]
Abstract
We propose a calibration-free method to determine the number of receptors per cell, as well as the direct and the reverse reaction rate constants for a single receptor. The method is based on the analysis of the temporal evolution of the cells mean fluorescent intensity measured by a flow cytometer during the ligand-receptor (antigen-antibody) binding under the conditions of their comparable concentrations. We developed the kinetic approach accounting both for the delay between the dilution and the measurement and for the practical duration of the measurement itself. The method was applied to determine thenumber of CD14 receptors on human blood mononuclear (granulocytes, monocytes, lymphocytes) cells of several donors. We also obtained the direct ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mo>+</mml:mo></mml:msub><mml:mo>=</mml:mo></mml:mrow></mml:math> (5.6 ± 0.2) × 107 M-1 min-1 ) and reverse ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>k</mml:mi><mml:mo>-</mml:mo></mml:msub><mml:mo>=</mml:mo></mml:mrow></mml:math> (1.3 ± 0.2) × 10-2 min-1 ) rate constants of ligand-receptor interaction, and estimated the size of the binding site as b = 0.5 nm. The latter allows one to recalculate the rate constants for a different ligand, fluorescent label, medium viscosity, and/or temperature. The knowledge of the rate constants is essential for the calibration-free determination of the number of receptors per cell from a single kinetic curve of the cells mean fluorescence intensity.
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Affiliation(s)
- Irina V Khalo
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya 3, Novosibirsk 630090, Russia
| | - Viktoriya S Kozyreva
- Research Institute for Circulation Pathology n.a. academician E.N. Meshalkin, Rechkunovskaya 15, Novosibirsk 630055, Russia
| | - Roman V Vakhrushev
- Institute of Nuclear Physics SB RAS, Akademika Lavrentieva Prospect 11, Novosibirsk 630090, Russia
| | - Daria S Patlai
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya 3, Novosibirsk 630090, Russia.,Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
| | - Anna N Shilova
- Research Institute for Circulation Pathology n.a. academician E.N. Meshalkin, Rechkunovskaya 15, Novosibirsk 630055, Russia
| | - Andrei A Karpenko
- Research Institute for Circulation Pathology n.a. academician E.N. Meshalkin, Rechkunovskaya 15, Novosibirsk 630055, Russia
| | - Maxim A Yurkin
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya 3, Novosibirsk 630090, Russia.,Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
| | - Alexander E Moskalensky
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya 3, Novosibirsk 630090, Russia.,Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
| | - Dmitry I Strokotov
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya 3, Novosibirsk 630090, Russia.,Novosibirsk State Medical University, Krasny Prospect 52, Novosibirsk 630091, Russia
| | - Valeri P Maltsev
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya 3, Novosibirsk 630090, Russia.,Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia.,Novosibirsk State Medical University, Krasny Prospect 52, Novosibirsk 630091, Russia
| | - Andrei V Chernyshev
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya 3, Novosibirsk 630090, Russia.,Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
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