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Saleh D, Jones RTL, Schroth SL, Thorp EB, Feinstein MJ. Emerging Roles for Dendritic Cells in Heart Failure. Biomolecules 2023; 13:1535. [PMID: 37892217 PMCID: PMC10605025 DOI: 10.3390/biom13101535] [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: 09/19/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
The field of cardio-immunology has emerged from discoveries that define roles for innate and adaptive immune responses associated with myocardial inflammation and heart failure. Dendritic cells (DCs) comprise an important cellular compartment that contributes to systemic immune surveillance at the junction of innate and adaptive immunity. Once described as a singular immune subset, we now appreciate that DCs consist of a heterogeneous pool of subpopulations, each with distinct effector functions that can uniquely regulate the acute and chronic inflammatory response. Nevertheless, the cardiovascular-specific context involving DCs in negotiating the biological response to myocardial injury is not well understood. Herein, we review our current understanding of the role of DCs in cardiac inflammation and heart failure, including gaps in knowledge and clinical relevance.
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Affiliation(s)
- Danish Saleh
- Department of Medicine, Division of Cardiology, Feinberg School of Medicine, Chicago, IL 60611, USA;
| | | | | | - Edward B. Thorp
- Department of Pathology, Northwestern University, Chicago, IL 60611, USA
- Department of Pediatrics, Northwestern University, Chicago, IL 60611, USA
| | - Matthew J. Feinstein
- Department of Medicine, Division of Cardiology, Feinberg School of Medicine, Chicago, IL 60611, USA;
- Department of Pathology, Northwestern University, Chicago, IL 60611, USA
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Schroth SL, Jones RTL, Thorp EB. Alloantigen Infusion Activates the Transcriptome of Type 2 Conventional Dendritic Cells. Immunohorizons 2023; 7:683-693. [PMID: 37855737 PMCID: PMC10615655 DOI: 10.4049/immunohorizons.2300067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 10/20/2023] Open
Abstract
Recent studies have revealed novel molecular mechanisms by which innate monocytic cells acutely recognize and respond to alloantigen with significance to allograft rejection and tolerance. What remains unclear is the single-cell heterogeneity of the innate alloresponse, particularly the contribution of dendritic cell (DC) subsets. To investigate the response of these cells to exposure of alloantigen, C57BL/6J mice were administered live allogenic BALB/cJ splenic murine cells versus isogenic cells. In parallel, we infused apoptotic allogenic and isogenic cells, which have been reported to modulate immunity. Forty-eight hours after injection, recipient spleens were harvested, enriched for DCs, and subjected to single-cell mRNA sequencing. Injection of live cells induced a greater transcriptional change across DC subsets compared with apoptotic cells. In the setting of live cell infusion, type 2 conventional DCs (cDC2s) were most transcriptionally responsive with a Ccr2+ cDC2 subcluster uniquely responding to the presence of alloantigen compared with the isogenic control. In vitro experimentation confirmed unique activation of CCR2+ cDC2s following alloantigen exposure. Candidate receptors of allorecognition in other innate populations were interrogated and A type paired Ig-like receptors were found to be increased in the cDC2 population following alloexposure. These results illuminate previously unclear distinctions between therapeutic infusions of live versus apoptotic allogenic cells and suggest a role for cDC2s in innate allorecognition. More critically, these studies allow for future interrogation of the transcriptional response of immune cells in the setting of alloantigen exposure in vivo, encouraging assessment of novel pathways and previously unexamined receptors in this setting.
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Affiliation(s)
- Samantha L. Schroth
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Rebecca T. L. Jones
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Edward B. Thorp
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL
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Lagu T, Schroth SL, Haywood C, Heinemann A, Kessler A, Morse L, Khan SS, Kershaw KN, Nash MS. Diagnosis and Management of Cardiovascular Risk in Individuals With Spinal Cord Injury: A Narrative Review. Circulation 2023; 148:268-277. [PMID: 37459417 PMCID: PMC10403284 DOI: 10.1161/circulationaha.123.064859] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/07/2023] [Indexed: 07/20/2023]
Abstract
More than 16 000 Americans experience spinal cord injury (SCI), resulting in chronic disability and other secondary sequelae, each year. Improvements in acute medical management have increased life expectancy. Cardiovascular disease is a leading cause of death in this population, and seems to occur earlier in individuals with SCI compared with the general population. People with SCI experience a high burden of traditional cardiovascular disease risk factors, including dyslipidemia and diabetes, and demonstrate anatomic, metabolic, and physiologic changes alongside stark reductions in physical activity after injury. They also experience multiple, complex barriers to care relating to disability and, in many cases, compounding effects of intersecting racial and socioeconomic health inequities. Given this combination of risk factors, some investigators have proposed that people with SCI are at increased risk for cardiovascular disease, beyond that associated with traditional risk factors, and SCI could be considered a risk-enhancing factor, analogous to other risk-enhancing factors defined by the 2019 American Heart Association/American College of Cardiology Primary Prevention Guidelines. However, more research is needed in this population to clarify the role of traditional risk factors, novel risk factors, health care access, social determinants of health, and intersectionality of disability, race, and socioeconomic status. There is an urgent need for primary care physicians and cardiologists to have awareness of the importance of timely diagnosis and management of cardiac risk factors for people with SCI.
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Affiliation(s)
- Tara Lagu
- Center for Health Services and Outcomes Research, Institute of Public Health and Medicine (T.L., S.L.S., C.H., A.H., A.K., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Divisions of Hospital Medicine (T.L.), Northwestern Feinberg School of Medicine, Chicago, IL
- Department of Medicine (T.L., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
| | - Samantha L Schroth
- Center for Health Services and Outcomes Research, Institute of Public Health and Medicine (T.L., S.L.S., C.H., A.H., A.K., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Cardiology (S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Departments of Pathology (S.L.S.), Northwestern Feinberg School of Medicine, Chicago, IL
| | - Carol Haywood
- Center for Health Services and Outcomes Research, Institute of Public Health and Medicine (T.L., S.L.S., C.H., A.H., A.K., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Medical Social Sciences (C.H.), Northwestern Feinberg School of Medicine, Chicago, IL
| | - Allen Heinemann
- Center for Health Services and Outcomes Research, Institute of Public Health and Medicine (T.L., S.L.S., C.H., A.H., A.K., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Physical Medicine and Rehabilitation (A.H., A.K.), Northwestern Feinberg School of Medicine, Chicago, IL
| | - Allison Kessler
- Center for Health Services and Outcomes Research, Institute of Public Health and Medicine (T.L., S.L.S., C.H., A.H., A.K., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Physical Medicine and Rehabilitation (A.H., A.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Shirley Ryan Ability Lab, Chicago, IL (A.K., A.K.)
| | - Leslie Morse
- Department of Rehabilitation Medicine, University of Minnesota Medical School, Minneapolis (L.M.)
| | - Sadiya S Khan
- Center for Health Services and Outcomes Research, Institute of Public Health and Medicine (T.L., S.L.S., C.H., A.H., A.K., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Department of Medicine (T.L., S.S.K.), Northwestern Feinberg School of Medicine, Chicago, IL
- Preventive Medicine (S.S.K., K.N.K.), Northwestern Feinberg School of Medicine, Chicago, IL
| | - Kiarri N Kershaw
- Preventive Medicine (S.S.K., K.N.K.), Northwestern Feinberg School of Medicine, Chicago, IL
| | - Mark S Nash
- Department of Neurological Surgery and the Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, FL (M.S.N.)
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Meyer MAA, Anstötz M, Ren LY, Fiske MP, Guedea AL, Grayson VS, Schroth SL, Cicvaric A, Nishimori K, Maccaferri G, Radulovic J. Stress-related memories disrupt sociability and associated patterning of hippocampal activity: a role of hilar oxytocin receptor-positive interneurons. Transl Psychiatry 2020; 10:428. [PMID: 33311459 PMCID: PMC7733596 DOI: 10.1038/s41398-020-01091-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 10/17/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023] Open
Abstract
In susceptible individuals, memories of stressful experiences can give rise to debilitating socio-affective symptoms. This occurs even when the ability to retrieve such memories is limited, as seen in patients suffering from traumatic amnesia. We therefore hypothesized that the encoding, rather than retrieval, mechanisms of stress-related memories underlie their impact on social and emotional behavior. To test this hypothesis, we used combinations of stress-enhanced and state-dependent fear conditioning, which engage different encoding mechanisms for the formation of stress-related memories. We found that the encoding of stress-enhanced state-dependent memories robustly and sex specifically impairs sociability in male mice and disrupts the asymmetry of dentate gyrus (DG)/CA3 activity accompanying social interactions. These deficits were restored by chemogenetic inactivation of oxytocin receptor-positive interneurons localized in the hilus (Oxtr-HI), and by inactivation of dorsohippocampal efferents to the caudal lateral septum. Together, our data suggest that disrupted patterning of dorsohippocampal DG/CA3 activity underlies stress-induced sociability deficits, and that Oxtr-HI can be a cellular target for improving these deficits.
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Affiliation(s)
- Mariah A. A. Meyer
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Max Anstötz
- grid.16753.360000 0001 2299 3507Department of Physiology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Lynn Y. Ren
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Michael P. Fiske
- grid.16753.360000 0001 2299 3507Department of Physiology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Anita L. Guedea
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Viktoriya S. Grayson
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Samantha L. Schroth
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Ana Cicvaric
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Katsuhiko Nishimori
- grid.411582.b0000 0001 1017 9540Department of Obesity and Internal Inflammation, Fukushima Medical University, Fukushima, 960-1295 Japan
| | - Gianmaria Maccaferri
- grid.16753.360000 0001 2299 3507Department of Physiology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Jelena Radulovic
- Department of Psychiatry and Behavioral Sciences, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA. .,Department of Physiology, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA. .,Department of Neuroscience and Department of Psychiatry, Albert Einstein College of Medicine, The Bronx, NY, 10461, USA.
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