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Vendrov AE, Xiao H, Lozhkin A, Hayami T, Hu G, Brody MJ, Sadoshima J, Zhang YY, Runge MS, Madamanchi NR. Cardiomyocyte NOX4 regulates resident macrophage-mediated inflammation and diastolic dysfunction in stress cardiomyopathy. Redox Biol 2023; 67:102937. [PMID: 37871532 PMCID: PMC10598408 DOI: 10.1016/j.redox.2023.102937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/06/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023] Open
Abstract
In acute sympathetic stress, catecholamine overload can lead to stress cardiomyopathy. We tested the hypothesis that cardiomyocyte NOX4 (NADPH oxidase 4)-dependent mitochondrial oxidative stress mediates inflammation and diastolic dysfunction in stress cardiomyopathy. Isoproterenol (ISO; 5 mg/kg) injection induced sympathetic stress in wild-type and cardiomyocyte (CM)-specific Nox4 knockout (Nox4CM-/-) mice. Wild-type mice treated with ISO showed higher CM NOX4 expression, H2O2 levels, inflammasome activation, and IL18, IL6, CCL2, and TNFα levels than Nox4CM-/- mice. Spectral flow cytometry and t-SNE analysis of cardiac cell suspensions showed significant increases in pro-inflammatory and pro-fibrotic embryonic-derived resident (CCR2-MHCIIhiCX3CR1hi) macrophages in wild-type mice 3 days after ISO treatment, whereas Nox4CM-/- mice had a higher proportion of embryonic-derived resident tissue-repair (CCR2-MHCIIloCX3CR1lo) macrophages. A significant increase in cardiac fibroblast activation and interstitial collagen deposition and a restrictive pattern of diastolic dysfunction with increased filling pressure was observed in wild-type hearts compared with Nox4CM-/- 7 days post-ISO. A selective NOX4 inhibitor, GKT137831, reduced myocardial mitochondrial ROS, macrophage infiltration, and fibrosis in ISO-injected wild-type mice, and preserved diastolic function. Our data suggest sympathetic overstimulation induces resident macrophage (CCR2-MHCII+) activation and myocardial inflammation, resulting in fibrosis and impaired diastolic function mediated by CM NOX4-dependent ROS.
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Affiliation(s)
- Aleksandr E Vendrov
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Han Xiao
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China; Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, 100191, China
| | - Andrey Lozhkin
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Takayuki Hayami
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Guomin Hu
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China; Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, 100191, China
| | - Matthew J Brody
- Department of Pharmacology, University of Michigan, Ann Arbor, MI, 48109, USA; Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Junichi Sadoshima
- Rutgers New Jersey Medical School, Department of Cell Biology and Molecular Medicine, Rutgers Biomedical and Health Sciences, Newark, NJ, 07101, USA
| | - You-Yi Zhang
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China; Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, 100191, China
| | - Marschall S Runge
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Nageswara R Madamanchi
- Frankel Cardiovascular Center, Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA.
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Abstract
BACKGROUND Myeloid cells form an important element of the response to ischemia-reperfusion injury (IRI). While the mononuclear phagocyte system is complex and difficult to study, our knowledge of the cells involved and their impacts has been steadily increasing. However, there is still need to rigorously define and separate the functions of discreet myeloid populations in the kidney. The relatively recent distinction between resident macrophages and infiltrating monocytes in the kidney is an important advance that will enhance our understanding of the various roles of distinct myeloid populations, but specific tools are needed to rigorously define the contributions of each to injury, repair, and the transition to chronic disease. SUMMARY Resident macrophages in the kidney form a network with various supportive roles during development and homeostasis. While the classification of these cells has been frequently convoluted in the literature, evidence for their roles during injury and repair is starting to accumulate. Current indications suggest they may have a minimal role during injury processes but may be important during the recovery phase. However, their involvement may also be dependent on their activation state in response to environmental cues. Investigations of the M1/M2 phenotype of myeloid cells have shed some light on the phenotypes that contribute to the manifestation of injury and/or recovery, but it is still difficult to form detailed conclusions. Here we will discuss the potential involvement of resident cells in these processes and the use of the M1/M2 system for defining the myeloid response following IRI. KEY MESSAGES There is a need for additional specific analysis of the contribution of resident versus recruited myeloid cells to injury, recovery, and chronic disease in the kidney. In addition, the contribution of myeloid activation states that extend beyond simple M1/M2 classification is an important area that needs close attention. Our ability to assess resident cells is growing, and awareness of the shortcoming of the M1/M2 system is also increasing. These are promising developments which bode well for the future of kidney injury and disease research.
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Affiliation(s)
- William T. Nash
- Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA, USA
- Center for Immunity, Inflammation, and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Marissa S. Yee
- Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA, USA
- Center for Immunity, Inflammation, and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Mark D. Okusa
- Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA, USA
- Center for Immunity, Inflammation, and Regenerative Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
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Knab K, Chambers D, Krönke G. [Protective macrophages : New insights into the role of synovial macrophages in inflammatory joint diseases]. Z Rheumatol 2021; 80:966-971. [PMID: 34705071 DOI: 10.1007/s00393-021-01112-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2021] [Indexed: 11/30/2022]
Abstract
Macrophages are among the phylogenetically oldest cells of the immune system and are found in all tissues and organs. In addition to playing an important role in immune response against pathogenic microorganisms, these cells were previously described to play a vital role in chronic inflammatory diseases such as rheumatoid arthritis. Using novel techniques such as single-cell sequencing and advanced microscopy techniques it has now been shown that macrophages are far more versatile. Thus, these cells contribute considerably to tissue homeostasis and tissue regeneration. As each tissue has to fulfill special requirements, macrophages vary in their phenotype and function between organs. New data have now identified a specialised population of epithelioid macrophages that exert a protective and anti-inflammatory function in synovial tissue and prevent the initial onset as well as episodes of joint inflammation in rheumatoid arthritis.
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Affiliation(s)
- Katharina Knab
- Medizinische Klinik 3 - Rheumatologie und Immunologie, Internistisches Zentrum (INZ), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Ulmenweg 18, 91054, Erlangen, Deutschland.,Deutsches Zentrum für Immuntherapie (DZI), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - David Chambers
- Medizinische Klinik 3 - Rheumatologie und Immunologie, Internistisches Zentrum (INZ), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Ulmenweg 18, 91054, Erlangen, Deutschland.,Deutsches Zentrum für Immuntherapie (DZI), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Gerhard Krönke
- Medizinische Klinik 3 - Rheumatologie und Immunologie, Internistisches Zentrum (INZ), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Ulmenweg 18, 91054, Erlangen, Deutschland. .,Deutsches Zentrum für Immuntherapie (DZI), Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland.
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Rocha-Resende C, Pani F, Adamo L. B cells modulate the expression of MHC-II on cardiac CCR2 - macrophages. J Mol Cell Cardiol 2021; 157:98-103. [PMID: 33971183 DOI: 10.1016/j.yjmcc.2021.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 12/24/2022]
Abstract
The uninjured murine heart contains a heterogeneous population of macrophages with disparate ontogenies and functions. These macrophages are often associated with blood vessels and can be subclassified based on the expression of CC chemokine receptor 2 (CCR2) and major histocompatibility complex class II (MHC-II). The biological cues that modulate these macrophage pool subpopulations have not been completely identified. It has been recently shown that a sub-population of circulating naïve B cells adheres to the myocardial microvasculature. We hypothesized that B cells might modulate the phenotype of myocardial macrophages. To test this hypothesis, we analyzed both the relative location of B cells and macrophages in myocardial histological section and the prevalence of myocardial macrophage subsets in hearts from B cell-deficient mice (μMT) and mice depleted of B cells through administration of an anti-CD20 antibody. We found that B cells pause in the microvasculature in proximity of macrophages and modulate the number of myocardial CCR2-MHC-IIhigh cells. Through in vitro studies we found that this is likely the result of a paracrine effect of B cells on the expression of MHC-II in CCR2- cells. These results reveal an unexpected relationship between B cells and resident macrophages and, highlighting a direct intramyocardial effect of circulating B cells, challenge the currently held belief that naïve recirculating B lymphocytes merely shuttle between lymphoid stations.
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Ogawa K, Tsurutani M, Hashimoto A, Soeda M. Simple propagation method for resident macrophages by co-culture and subculture, and their isolation from various organs. BMC Immunol 2019; 20:34. [PMID: 31533615 PMCID: PMC6749721 DOI: 10.1186/s12865-019-0314-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 09/04/2019] [Indexed: 12/23/2022] Open
Abstract
Background Resident macrophages (Mø) originating from yolk sac Mø and/or foetal monocytes colonise tissues/organs during embryonic development. They persist into adulthood by self-renewal at a steady state, independent of adult monocyte inputs, except for those in the intestines and dermis. Thus, many resident Mø can be propagated in vitro under optimal conditions; however, there are no specific in vitro culture methods available for the propagation of resident Mø from diverse tissues/organs. Results We provided a simple method for propagating resident Mø derived from the liver, spleen, lung, and brain of ICR male mice by co-culture and subculture along with the propagation of other stromal cells of the respective organs in standard culture media and successfully demonstrated the propagation of resident Mø colonising these organs. We also proposed a simple method for segregating Mø from stromal cells according to their adhesive property on bacteriological Petri dishes, which enabled the collection of more than 97.6% of the resident Mø from each organ. Expression analyses of conventional Mø markers by flow cytometry showed similar expression patterns among the Mø collected from the organs. Conclusion This is the first study to clearly provide a practical Mø propagation method applicable to resident Mø of diverse tissues and organs. Thus, this novel practical Mø propagation method can offer broad applications for the use of resident Mø of diverse tissues and organs.
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Affiliation(s)
- Kazushige Ogawa
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan.
| | - Mayu Tsurutani
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan
| | - Aya Hashimoto
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan
| | - Miharu Soeda
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan
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Abstract
Interactions between tumor cells and their microenvironment have been long established as a cardinal hallmark of tumorigenesis and metastasis. To that end, tumor-associated macrophages (TAMs) have been studied extensively and were found to be typically correlated with poor prognosis in various cancers. TAMs are key elements of cancer-associated inflammation promoting cancer progression by increasing angiogenesis, inducing immunosuppression of the tumor tissue, and remodeling the extracellular matrix favoring invasion and metastasis. Since resident macrophages are characterized by substantial diversity and plasticity, understanding their polarization patterns in response to microenvironmental cues is a prime focus in the field. This chapter demonstrates an efficient manner to characterize polarization patterns of macrophages inside tumor tissues.
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Affiliation(s)
- Ioannis S Pateras
- Molecular Carcinogenesis Group, Department of Histology and Embryology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Tomer Cooks
- Faculty of Health Sciences, The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva, Israel.
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Eberhardt N, Sanmarco LM, Aoki MP. Isolation and Phenotypic Characterization of Inflammatory Cells from Clinical Samples: Purification of Macrophages from Trypanosoma cruzi-Infected Hearts. Methods Mol Biol 2019; 1955:381-95. [PMID: 30868542 DOI: 10.1007/978-1-4939-9148-8_28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Trypanosoma cruzi, the causal agent of chronic Chagas cardiomyopathy, exhibits an important tropism for cardiac tissue. In consequence, T. cruzi experimental infection represents a unique model to study cardiac macrophage behavior and effector functions during either acute or chronic immune response. In this chapter we describe a protocol to isolate immune cells from T. cruzi-infected murine cardiac tissue and to determine the percentage, absolute number, phenotype, and functionality of monocytes and macrophages by using flow cytometry. Moreover, we describe the parameters to discriminate between resident and infiltrating mononuclear phagocytic cells within infected hearts. The investigations in this field will provide mechanistic insights about the roles of these innate immune cells in the context of a clinically relevant target tissue.
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Falkenham A, Myers T, Wong C, Legare JF. Implications for the role of macrophages in a model of myocardial fibrosis: CCR2(-/-) mice exhibit an M2 phenotypic shift in resident cardiac macrophages. Cardiovasc Pathol 2016; 25:390-8. [PMID: 27327107 DOI: 10.1016/j.carpath.2016.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/25/2016] [Accepted: 05/25/2016] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Macrophages (MΦ) are functionally diverse and dynamic. Until recently, cardiac MΦ were assumed to be monocyte derived; however, resident cardiac MΦ (rCMΦ), present at baseline, were identified in myocardia and have been implicated in cardiac healing. Previously, we demonstrated that CCR2(-/-) mice are protected from myocardial fibrosis - an observation initially attributed to changes in infiltrating monocytes. Here, we reexplored this observation in the context of our new understanding of rCMΦ. METHODS Male CCR2(-/-) and C57BL/6 hearts were digested and purified to a single cell suspension, incubated with fluorophore-linked antibodies (CCR2, CX3CR1, CD11b, Ly6C, TNF-α, and IL-10), and assessed by flow cytometry. Differentiated MΦ were cocultured with fibroblasts in order to characterize how MΦ phenotype influences fibroblast activation. Fibroblasts were characterized for their expression of smooth muscle cell actin (SMA). RESULTS A significant decrease in Ly6C expression was observed in the CCR2(-/-) cardiac MΦ population relative to WT, which corresponded with significantly lower TNF-α expression and significantly higher IL-10 expression. Using in vitro coculture system, classical MΦ promoted fibroblast activation relative to nonclassical MΦ. CONCLUSION CCR2(-/-) rCMΦ favor a more antiinflammatory phenotype relative to WT controls. Moreover, a shift toward the antiinflammatory promotes proliferation, but not activation in vitro. Together, these observations suggest that antiinflammatory cardiac MΦ populations may inhibit myocardial fibrosis in a pathological setting by preventing the activation of fibroblasts. NEWS AND NOTEWORTHY Here, we provide novel evidence for baseline differences in rCMΦ phenotypes (i.e. classical vs. nonclassical) and how these differences could modulate cardiac healing. Importantly, we observed differences in how classical vs. nonclassical MΦ influenced fibroblast activation, which could, in turn, affect fibrosis.
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Affiliation(s)
- Alec Falkenham
- Department of Pathology, Dalhousie University, Halifax, NS, Canada.
| | - Tanya Myers
- Department of Surgery, Dalhousie University, Halifax, NS, Canada
| | - Chloe Wong
- Department of Pathology, Dalhousie University, Halifax, NS, Canada
| | - Jean Francois Legare
- Department of Pathology, Dalhousie University, Halifax, NS, Canada; Department of Surgery, Dalhousie University, Halifax, NS, Canada; Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
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Phillips RJ, Hudson CN, Powley TL. Sympathetic axonopathies and hyperinnervation in the small intestine smooth muscle of aged Fischer 344 rats. Auton Neurosci 2013; 179:108-21. [PMID: 24104187 DOI: 10.1016/j.autneu.2013.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 09/04/2013] [Accepted: 09/09/2013] [Indexed: 01/13/2023]
Abstract
It is well documented that the intrinsic enteric nervous system of the gastrointestinal (GI) tract sustains neuronal losses and reorganizes as it ages. In contrast, age-related remodeling of the extrinsic sympathetic projections to the wall of the gut is poorly characterized. The present experiment, therefore, surveyed the sympathetic projections to the aged small intestine for axonopathies. Furthermore, the experiment evaluated the specific prediction that catecholaminergic inputs undergo hyperplastic changes. Jejunal tissue was collected from 3-, 8-, 16-, and 24-month-old male Fischer 344 rats, prepared as whole mounts consisting of the muscularis, and processed immunohistochemically for tyrosine hydroxylase, the enzymatic marker for norepinephrine, and either the protein CD163 or the protein MHCII, both phenotypical markers for macrophages. Four distinctive sympathetic axonopathy profiles occurred in the small intestine of the aged rat: (1) swollen and dystrophic terminals, (2) tangled axons, (3) discrete hyperinnervated loci in the smooth muscle wall, including at the bases of Peyer's patches, and (4) ectopic hyperplastic or hyperinnervating axons in the serosa/subserosal layers. In many cases, the axonopathies occurred at localized and limited foci, involving only a few axon terminals, in a pattern consistent with incidences of focal ischemic, vascular, or traumatic insult. The present observations underscore the complexity of the processes of aging on the neural circuitry of the gut, with age-related GI functional impairments likely reflecting a constellation of adjustments that range from selective neuronal losses, through accumulation of cellular debris, to hyperplasias and hyperinnervation of sympathetic inputs.
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Affiliation(s)
- Robert J Phillips
- Purdue University, Department of Psychological Sciences, West Lafayette, IN 47907-2081, United States.
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