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Peng B, Li H, Liu K, Zhang P, Zhuang Q, Li J, Yang M, Cheng K, Ming Y. Intrahepatic macrophage reprogramming associated with lipid metabolism in hepatitis B virus-related acute-on-chronic liver failure. J Transl Med 2023; 21:419. [PMID: 37380987 DOI: 10.1186/s12967-023-04294-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/22/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Acute-on-chronic liver failure (ACLF) is a severe syndrome with high short-term mortality, but the pathophysiology still remains largely unknown. Immune dysregulation and metabolic disorders contribute to the progression of ACLF, but the crosstalk between immunity and metabolism during ACLF is less understood. This study aims to depict the immune microenvironment in the liver during ACLF, and explore the role of lipid metabolic disorder on immunity. METHODS Single-cell RNA-sequencing (scRNA-seq) was performed using the liver non-parenchymal cells (NPCs) and peripheral blood mononuclear cells (PBMCs) from healthy controls, cirrhosis patients and ACLF patients. A series of inflammation-related cytokines and chemokines were detected using liver and plasma samples. The lipid metabolomics targeted free fatty acids (FFAs) in the liver was also detected. RESULTS The scRNA-seq analysis of liver NPCs showed a significant increase of monocytes/macrophages (Mono/Mac) infiltration in ACLF livers, whereas the resident Kupffer cells (KCs) were exhausted. A characterized TREM2+ Mono/Mac subpopulation was identified in ACLF, and showed immunosuppressive function. Combined with the scRNA-seq data from PBMCs, the pseudotime analysis revealed that the TREM2+ Mono/Mac were differentiated from the peripheral monocytes and correlated with lipid metabolism-related genes including APOE, APOC1, FABP5 and TREM2. The targeted lipid metabolomics proved the accumulation of unsaturated FFAs associated with α-linolenic acid (α-LA) and α-LA metabolism and beta oxidation of very long chain fatty acids in the ACLF livers, indicating that unsaturated FFAs might promote the differentiation of TREM2+ Mono/Mac during ACLF. CONCLUSIONS The reprogramming of macrophages was found in the liver during ACLF. The immunosuppressive TREM2+ macrophages were enriched in the ACLF liver and contributed to the immunosuppressive hepatic microenvironment. The accumulation of unsaturated FFAs in the ACLF liver promoted the reprogramming of the macrophages. It might be a potential target to improve the immune deficiency of ACLF patients through regulating lipid metabolism.
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Affiliation(s)
- Bo Peng
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Hao Li
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Kai Liu
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Pengpeng Zhang
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Quan Zhuang
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Junhui Li
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Min Yang
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Ke Cheng
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China
| | - Yingzi Ming
- Transplantation Center, The Third Xiangya Hospital, Central South University, Hunan, 410013, Changsha, China.
- Engineering and Technology Research Center for Transplantation Medicine of National Health Commission, Changsha, China.
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Dong CX, Malecki C, Robertson E, Hambly B, Jeremy R. Molecular Mechanisms in Genetic Aortopathy-Signaling Pathways and Potential Interventions. Int J Mol Sci 2023; 24:ijms24021795. [PMID: 36675309 PMCID: PMC9865322 DOI: 10.3390/ijms24021795] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/02/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Thoracic aortic disease affects people of all ages and the majority of those aged <60 years have an underlying genetic cause. There is presently no effective medical therapy for thoracic aneurysm and surgery remains the principal intervention. Unlike abdominal aortic aneurysm, for which the inflammatory/atherosclerotic pathogenesis is well established, the mechanism of thoracic aneurysm is less understood. This paper examines the key cell signaling systems responsible for the growth and development of the aorta, homeostasis of endothelial and vascular smooth muscle cells and interactions between pathways. The evidence supporting a role for individual signaling pathways in pathogenesis of thoracic aortic aneurysm is examined and potential novel therapeutic approaches are reviewed. Several key signaling pathways, notably TGF-β, WNT, NOTCH, PI3K/AKT and ANGII contribute to growth, proliferation, cell phenotype and survival for both vascular smooth muscle and endothelial cells. There is crosstalk between pathways, and between vascular smooth muscle and endothelial cells, with both synergistic and antagonistic interactions. A common feature of the activation of each is response to injury or abnormal cell stress. Considerable experimental evidence supports a contribution of each of these pathways to aneurysm formation. Although human information is less, there is sufficient data to implicate each pathway in the pathogenesis of human thoracic aneurysm. As some pathways i.e., WNT and NOTCH, play key roles in tissue growth and organogenesis in early life, it is possible that dysregulation of these pathways results in an abnormal aortic architecture even in infancy, thereby setting the stage for aneurysm development in later life. Given the fine tuning of these signaling systems, functional polymorphisms in key signaling elements may set up a future risk of thoracic aneurysm. Multiple novel therapeutic agents have been developed, targeting cell signaling pathways, predominantly in cancer medicine. Future investigations addressing cell specific targeting, reduced toxicity and also less intense treatment effects may hold promise for effective new medical treatments of thoracic aortic aneurysm.
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Affiliation(s)
- Charlotte Xue Dong
- Faculty of Health and Medical Sciences, University of Sydney, Sydney, NSW 2006, Australia
| | - Cassandra Malecki
- Faculty of Health and Medical Sciences, University of Sydney, Sydney, NSW 2006, Australia
- The Baird Institute, Camperdown, NSW 2042, Australia
| | - Elizabeth Robertson
- Faculty of Health and Medical Sciences, University of Sydney, Sydney, NSW 2006, Australia
| | - Brett Hambly
- Faculty of Health and Medical Sciences, University of Sydney, Sydney, NSW 2006, Australia
| | - Richmond Jeremy
- Faculty of Health and Medical Sciences, University of Sydney, Sydney, NSW 2006, Australia
- The Baird Institute, Camperdown, NSW 2042, Australia
- Correspondence:
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Junco-Vicente A, del Río-García Á, Martín M, Rodríguez I. Update in Biomolecular and Genetic Bases of Bicuspid Aortopathy. Int J Mol Sci 2021; 22:ijms22115694. [PMID: 34071740 PMCID: PMC8198265 DOI: 10.3390/ijms22115694] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 12/13/2022] Open
Abstract
Bicuspid aortic valve (BAV) associated with aortopathy is the most common congenital heart disease in the general population. Far from being a simple harmless valve malformation, it can be a complex and heterogeneous disease and a source of chronic and acute pathology (early valvular disease, aneurysm, dissection). In the previous years, intense research has been carried out to find out and understand its mechanisms, but the pathophysiology of the disease is still not fully understood and many questions remain open. Recent studies have discovered several genetic mutations involved in the development of valvular and aortic malformations, but still cannot explain more than 5–10% of cases. Other studies have also focused on molecular alterations and cellular processes (TGF-β pathway, microRNAs, degradation of the extracellular matrix, metalloproteinases, etc.), being a field in constant search and development, looking for a therapeutic target to prevent the development of the disease. Increased knowledge about this multifaceted disorder, derived from both basic and clinical research, may influence the diagnosis, follow-up, prognosis, and therapies of affected patients in the near future. This review focuses on the latest and outstanding developments on the molecular and genetic investigations of the bicuspid aortopathy.
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Affiliation(s)
- Alejandro Junco-Vicente
- Cardiology Department, Heart Area, Hospital Universitario Central de Asturias (HUCA), 33011 Oviedo, Spain;
| | - Álvaro del Río-García
- Cardiac Pathology Research Group, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain;
| | - María Martín
- Cardiology Department, Heart Area, Hospital Universitario Central de Asturias (HUCA), 33011 Oviedo, Spain;
- Cardiac Pathology Research Group, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain;
- REDinREN from Instituto de Salud Carlos III (ISCIII), 28040 Madrid, Spain
- Correspondence: (M.M.); (I.R.)
| | - Isabel Rodríguez
- Cardiac Pathology Research Group, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain;
- REDinREN from Instituto de Salud Carlos III (ISCIII), 28040 Madrid, Spain
- Correspondence: (M.M.); (I.R.)
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Therapeutic Effect of Rapamycin on Aortic Dissection in Mice. Int J Mol Sci 2020; 21:ijms21093341. [PMID: 32397282 PMCID: PMC7246910 DOI: 10.3390/ijms21093341] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 01/08/2023] Open
Abstract
Aortic dissection (AD) is a serious clinical condition that is unpredictable and frequently results in fatal outcome. Although rapamycin, an inhibitor of mechanistic target of rapamycin (mTOR), has been reported to be effective in preventing aortopathies in mouse models, its mode of action has yet to be clarified. A mouse AD model that was created by the simultaneous administration of β-aminopropionitrile (BAPN) and angiotensin II (AngII) for 14 days. Rapamycin treatment was started either at day 1 or at day 7 of BAPN+AngII challenge, and continued throughout the observational period. Rapamycin was effective both in preventing AD development and in suppressing AD progression. On the other hand, gefitinib, an inhibitor of growth factor signaling, did not show such a beneficial effect, even though both rapamycin and gefitinib suppressed cell cycle activation in AD. Rapamycin suppressed cell cycle-related genes and induced muscle development-related genes in an AD-related gene expression network without a major impact on inflammation-related genes. Rapamycin augmented the activation of Akt1, Akt2, and Stat3, and maintained the contractile phenotype of aortic smooth muscle cells. These findings indicate that rapamycin was effective both in preventing the development and in suppressing the progression of AD, indicating the importance of the mTOR pathway in AD pathogenesis.
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Nishida N, Aoki H, Ohno-Urabe S, Nishihara M, Furusho A, Hirakata S, Hayashi M, Ito S, Yamada H, Hirata Y, Yasukawa H, Imaizumi T, Tanaka H, Fukumoto Y. High Salt Intake Worsens Aortic Dissection in Mice: Involvement of IL (Interleukin)-17A-Dependent ECM (Extracellular Matrix) Metabolism. Arterioscler Thromb Vasc Biol 2019; 40:189-205. [PMID: 31694392 PMCID: PMC6946107 DOI: 10.1161/atvbaha.119.313336] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Aortic dissection (AD) is a fatal disease that occurs suddenly without preceding clinical signs or symptoms. Although high salt intake is a proposed risk factor for cardiovascular diseases, the relationship between AD and high salt intake has not been clarified. We examined the effect of high-salt challenge on a mouse AD model. Approach and Results: AD was induced in male mice by continuous infusion of β-aminopropionitrile and Ang II (angiotensin II). High-salt challenge exacerbated aortic wall destruction in AD. Deletion of Il17a (IL-17KO [IL (interleukin)-17A knockout]) did not affect the AD phenotype at baseline, but it abolished the high salt-induced worsening of the aortic destruction. Unexpectedly, aortas of IL-17KO mice exhibited global changes in ECM (extracellular matrix)-related genes without alteration of proinflammatory genes, altered architecture of collagen fibers, and reduced stiffness before AD induction. The aortas of IL-17KO mice were less sensitive to AD-inducing stimuli, as shown by the induction of phenotypic modulation markers SMemb and vimentin, suggesting a reduced stress response. The aortas of IL-17KO mice had a higher population of smooth muscle cells with nuclear-localized phosphorylated Smad2, indicative of TGFβ (transforming growth factor-beta) signal activation. Consistently, pretreatment of smooth muscle cells in culture with IL-17A blunted the activation of Smad2 by TGFβ1. CONCLUSIONS These findings indicate that high salt intake has a worsening effect on AD in the context of high aortic wall stiffness, which is under the control of IL-17A through ECM metabolism. Therefore, salt restriction may represent a low-cost and practical way to reduce AD risk.
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Affiliation(s)
- Norifumi Nishida
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Hiroki Aoki
- Cardiovascular Research Institute, Kurume University, Japan (H.A.)
| | - Satoko Ohno-Urabe
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Michihide Nishihara
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Aya Furusho
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Saki Hirakata
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Makiko Hayashi
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Sohei Ito
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Hiroshi Yamada
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan (H. Yamada)
| | - Yuichiro Hirata
- Division of Cardiovascular Surgery, Department of Surgery (Y.H., H.T.), Kurume University School of Medicine, Japan
| | - Hideo Yasukawa
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
| | - Tsutomu Imaizumi
- International University of Health and Welfare, Fukuoka, Japan (T.I.)
| | - Hiroyuki Tanaka
- Division of Cardiovascular Surgery, Department of Surgery (Y.H., H.T.), Kurume University School of Medicine, Japan
| | - Yoshihiro Fukumoto
- From the Division of Cardiovascular Medicine, Department of Internal Medicine (N.N., S.O.-U., M.N., A.F., S.H., M.H., S.I., H. Yasukawa, Y.F.), Kurume University School of Medicine, Japan
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Murohara T. <i>Circulation Journal</i> Awards for the Year 2018. Circ J 2019; 83:495-503. [DOI: 10.1253/circj.cj-66-0162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine
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Liu T, Xie M, Lv Q, Li Y, Fang L, Zhang L, Deng W, Wang J. Bicuspid Aortic Valve: An Update in Morphology, Genetics, Biomarker, Complications, Imaging Diagnosis and Treatment. Front Physiol 2019; 9:1921. [PMID: 30761020 PMCID: PMC6363677 DOI: 10.3389/fphys.2018.01921] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/20/2018] [Indexed: 12/19/2022] Open
Abstract
The bicuspid aortic valve, a kind of heart disease that comes from parents, has been paid attention around the world. Although most bicuspid aortic valve (BAV) patients will suffer from some complications including aortic stenosis, aortic regurgitation, endocarditis, and heart dysfunction in the late stage of the disease, there is none symptom in the childhood, which restrains us to diagnose and treatment in the onset phase of BAV. Hemodynamic abnormalities induced by the malformations of the valves in BAV patients for a long time will cause BAV-associated aortopathy: including progress aortic dilation, aneurysm, dissection and rupture, cardiac cyst and even sudden death. At present, preventive surgical intervention is the only effective method used in this situation and the diameter of the aorta is the primary reference criterion for surgery. And the treatment effects are always not satisfactory for patients and clinicians. Therefore, we need more methods to evaluate the progression of BAV and the surgery value and the appropriate intervention time by combining basic research with clinical treatment. In this review, advances in morphology, genetic, biomarkers, diagnosis and treatments are summarized, which expects to provide an update about BAV. It is our supreme expectations to provide some evidences for BAV early screening and diagnosis, and in our opinion, personalized surgical strategy is the trend of future BAV treatment.
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Affiliation(s)
- Tianshu Liu
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Mingxing Xie
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Qing Lv
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yuman Li
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Lingyun Fang
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Li Zhang
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Wenhui Deng
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Jing Wang
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
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Yamashita T, Hayashi T, Tabata T, Hirata KI. Bicuspid Aortic Valve-Associated Aortic Dilatation ― What Is the Mechanism of Bicuspid Aortopathy? ―. Circ J 2018; 82:2470-2471. [DOI: 10.1253/circj.cj-18-0844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tomoya Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
| | - Tomohiro Hayashi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
| | - Tokiko Tabata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
| | - Ken-ichi Hirata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
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