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Xuan X, Li Y, Cao G, Zhang R, Hu J, Jin H, Dong H. Fluoroquinolones increase susceptibility to aortic aneurysm and aortic dissection: Molecular mechanism and clinical evidence. Vasc Med 2023; 28:604-613. [PMID: 37756313 DOI: 10.1177/1358863x231198055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Aortic aneurysm (AA) and aortic dissection (AD) are prevalent severe cardiovascular diseases that result in catastrophic complications and unexpected deaths. Owing to the lack of clinically established and effective medications, the only treatment options are open surgical repair or endovascular therapy. Most researchers have focused on the development of innovative medications or therapeutic targets to slow the progression of AA/AD or lower the risk of malignant consequences. Recent studies have shown that the use of fluoroquinolones (FQs) may increase susceptibility to AA/AD to some extent, especially in patients with aortic dilatation and those at a high risk of AD. Therefore, it is crucial for doctors, particularly those in cardiovascular specialties, to recognize the dangers of FQs and adopt alternatives. In the present review, the main clinical observational studies on the correlation between FQs and AA/AD in recent years are summarized, with an emphasis on the relative physiopathological mechanism incorporating destruction of the extracellular matrix (ECM), phenotypic transformation of vascular smooth muscle cells, and local inflammation. Although additional data are required, it is anticipated that the rational use of FQs will become the standard of care for the treatment of aortic diseases.
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Affiliation(s)
- Xuezhen Xuan
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yaling Li
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Genmao Cao
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Ruijing Zhang
- Department of Nephrology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jie Hu
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Haijiang Jin
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Honglin Dong
- Department of Vascular Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
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2
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Wang Y, Barrett A, Hu Q. Targeting Macrophages for Tumor Therapy. AAPS J 2023; 25:80. [PMID: 37589825 DOI: 10.1208/s12248-023-00845-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 07/27/2023] [Indexed: 08/18/2023] Open
Abstract
Macrophages, as one of the most abundant tumor-infiltrating cells, play an important role in tumor development and metastasis. The frequency and polarization of tumor-associated macrophages (TAMs) correlate with disease progression, tumor metastasis, and resistance to various treatments. Pro-inflammatory M1 macrophages hold the potential to engulf tumor cells. In contrast, anti-inflammatory M2 macrophages, which are predominantly present in tumors, potentiate tumor progression and immune escape. Targeting macrophages to modulate the tumor immune microenvironment can ameliorate the tumor-associated immunosuppression and elicit an anti-tumor immune response. Strategies to repolarize TAMs, deplete TAMs, and block inhibitory signaling hold great potential in tumor therapy. Besides, biomimetic carriers based on macrophages have been extensively explored to prolong circulation, enhance tumor-targeted delivery, and reduce the immunogenicity of therapeutics to augment therapeutic efficacy. Moreover, the genetic engineering of macrophages with chimeric antigen receptor (CAR) allows them to recognize tumor antigens and perform tumor cell-specific phagocytosis. These strategies will expand the toolkit for treating tumors, especially for solid tumors, drug-resistant tumors, and metastatic tumors. Herein, we introduce the role of macrophages in tumor progression, summarize the recent advances in macrophage-centered anticancer therapy, and discuss their challenges as well as future applications. Graphical abstract.
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Affiliation(s)
- Yixin Wang
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, WI, I 53705, Madison, U.S.A
- Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, WI, I 53705, Madison, U.S.A
- Wisconsin Center for NanoBioSystems, School of Pharmacy, University of Wisconsin-Madison, WI, I 53705, Madison, U.S.A
| | - Allie Barrett
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, WI, I 53705, Madison, U.S.A
| | - Quanyin Hu
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, WI, I 53705, Madison, U.S.A..
- Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, WI, I 53705, Madison, U.S.A..
- Wisconsin Center for NanoBioSystems, School of Pharmacy, University of Wisconsin-Madison, WI, I 53705, Madison, U.S.A..
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Guo H, Li Y, Qiu L, Li J, Guo X, Zhang Y, Wang J. Gua Lou Er Chen decoction attenuates atherosclerosis by reducing proteoglycans accumulation and inflammation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 115:154811. [PMID: 37094421 DOI: 10.1016/j.phymed.2023.154811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Proteoglycans (PGs) accumulation and inflammation are two interactional pathological processes of atherosclerosis (AS). Up to now, there is no ideal drug for decreasing these pathological changes. Gua Lou Er Chen decoction (GED) has been used to treat AS for several years. However, if GED could treat AS through reducing PGs accumulation and inflammation remains unknown. PURPOSE This study was designed to illustrate whether GED could attenuate AS by reducing chondroitin sulphate proteoglycan (CSPG) expressions and alleviating inflammation. METHODS In vivo study, apolipoprotein E-deficient mice were fed a high-fat diet to induce AS. In vitro study, oxidised low-density lipoprotein (ox-LDL) and tumour necrosis factor (TNF)-α were used to induce proteoglycans accumulation and inflammation changes of vascular smooth muscle cells (VSMCs) and RAW264.7 macrophages. Oil Red O was used to stain mouse aortic lipid plaque. Haematoxylin eosin staining was used to assess the pathological changes of aortic valve and thoracic aorta. Specialised kits were used to identify blood lipids and sGAGs. Immunofluorescence and immunohistochemistry was used to identify aortic valve CSPG and versican. Western blotting, enzyme-linked immunosorbent assay and quantitative reverse transcription-polymerase chain reaction were used to measure versican, interleukin (IL)-6, TNF-α, and chondroitin sulphate (CS) synthetase expressions. CCK-8 was used to measure the cells proliferation. RESULTS In vivo experiments revealed that GED significantly improved hyperlipidemia, lowered lipid plaque deposition in the aorta, and increased plaque stability of AS mice. In addition, further studies revealed that GED lowered the sGAGs, CSPG, and versican levels and down-regulated CS synthetase and inflammatory factor expressions. In vitro experiments revealed that GED decreased TNF-α expression in the RAW264.7 macrophage supernatant stimulated by ox-LDL; decreased versican, CS-related synthetase, and IL-6 expressions; reduced VSMC proliferation stimulated by ox-LDL; down-regulated sGAG and versican expressions of VSMCs stimulated by TNF-α. CONCLUSION Our results demonstrated that GED could attenuate AS by reducing hyperlipidemia, hyper-expression of CSPG, and inflammation. This study might provide a novel insight into the development of innovative drug for AS.
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Affiliation(s)
- Hongya Guo
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yunxing Li
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Lingyan Qiu
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jianyin Li
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaochun Guo
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yujing Zhang
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jian Wang
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
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4
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Jung S, Choi BH, Joo NS. Serum Homocysteine and Vascular Calcification: Advances in Mechanisms, Related Diseases, and Nutrition. Korean J Fam Med 2022; 43:277-289. [PMID: 36168899 PMCID: PMC9532189 DOI: 10.4082/kjfm.21.0227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 04/08/2022] [Indexed: 11/08/2022] Open
Abstract
Identifying and preventing modifiable risk factors for cardiovascular disease is very important. Vascular calcification has been studied clinically as an asymptomatic preclinical marker of atherosclerosis and a risk factor for cardio-cerebrovascular disease. It is known that higher homocysteine levels are associated with calcified plaques and the higher the homocysteine level, the higher the prevalence and progression of vascular calcification. Homocysteine is a byproduct of methionine metabolism and is generally maintained at a physiological level. Moreover, it may increase if the patient has a genetic deficiency of metabolic enzymes, nutritional deficiencies of related cofactors (vitamins), chronic diseases, or a poor lifestyle. Homocysteine is an oxidative stress factor that can lead to calcified plaques and trigger vascular inflammation. Hyperhomocysteinemia causes endothelial dysfunction, transdifferentiation of vascular smooth muscle cells, and the induction of apoptosis. As a result of transdifferentiation and cell apoptosis, hydroxyapatite accumulates in the walls of blood vessels. Several studies have reported on the mechanisms of multiple cellular signaling pathways that cause inflammation and calcification in blood vessels. Therefore, in this review, we take a closer look at understanding the clinical consequences of hyperhomocysteinemia and apply clinical approaches to reduce its prevalence.
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Affiliation(s)
- Susie Jung
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Korea
| | | | - Nam-Seok Joo
- Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Korea
- Corresponding Author: Nam-Seok Joo Tel: +82-31-219-5324, Fax: +82-31-219-5218, E-mail:
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5
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Huwait E, Ayoub M, Karim S. Investigation of the Molecular Mechanisms Underlying the Antiatherogenic Actions of Kaempferol in Human THP-1 Macrophages. Int J Mol Sci 2022; 23:ijms23137461. [PMID: 35806463 PMCID: PMC9267302 DOI: 10.3390/ijms23137461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular disease (CVD) is causing high mortality worldwide (World Health Organization-WHO, 2015). Atherosclerosis, the hardening and narrowing of arteries caused by the accumulation of fatty acids and lipids (cholesterol plaques), is a main reason of stroke, myocardial infarction, and angina. Present therapies for cardiovascular disease basically use statins such as β-Hydroxy β-methylglutaryl-CoA, with <70% efficacy and multiple side effects. An in vitro investigation was conducted to evaluate the impact of kaempferol, a natural medication, in an atherosclerotic cell model. We used cytotoxicity assays, Boyden chamber invasion assays, and quantitative PCR. Affymetrix microarrays were used to profile the entire transcriptome of kaempferol-treated cell lines, and Partek Genomic Suite was used to interpret the results. Kaempferol was not cytotoxic to THP-1 macrophages. In comparison to the control, kaempferol reduced monocyte migration mediated by monocyte chemotactic protein 1 (MCP-1) by 80%. The qPCR results showed a 73.7-fold reduction in MCP-1 and a 2.5-fold reduction in intercellular adhesion molecule 1 (ICAM-1) expression in kaempferol-treated cells. In interferon gamma (IFN-γ) without kaempferol and IFN-γ with kaempferol treated cells, we found 295 and 168 differentially expressed genes (DEGs), respectively. According to DEG pathway analysis, kaempferol exhibits anti-atherosclerosis and anti-inflammatory characteristics. Kaempferol is an effective and safe therapy for atherosclerosis.
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Affiliation(s)
- Etimad Huwait
- Biochemistry Department, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (E.H.); (M.A.)
- Cell Culture Unit and Experimental Biochemistry Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Maha Ayoub
- Biochemistry Department, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (E.H.); (M.A.)
- Cell Culture Unit and Experimental Biochemistry Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sajjad Karim
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: ; Tel.: +966-557581741
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6
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Zhang S, Liu Y, Cao Y, Zhang S, Sun J, Wang Y, Song S, Zhang H. Targeting the Microenvironment of Vulnerable Atherosclerotic Plaques: An Emerging Diagnosis and Therapy Strategy for Atherosclerosis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110660. [PMID: 35238081 DOI: 10.1002/adma.202110660] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Atherosclerosis is considered one of the primary causes of cardiovascular diseases (CVDs). Unpredictable rupture of the vulnerable atherosclerotic plaques triggers adverse cardiovascular events such as acute myocardial syndrome and even sudden cardiac death. Therefore, assessing the vulnerability of atherosclerotic plaques and early intervention are of significance in reducing CVD mortality. Nanomedicine possesses tremendous advantages in achieving the integration of the diagnosis and therapy of atherosclerotic plaques because of its magnetic, optical, thermal, and catalytic properties. Based on the pathological characteristics of vulnerable plaques, stimuli-responsive nanoplatforms and surface-functionalized nanoagents are designed and have drawn great attention for accomplishing the precise imaging and treatment of vulnerable atherosclerotic plaques due to their superior properties, such as high bioavailability, lesion-targeting specificity, on-demand cargo release, and low off-target damage. Here, the characteristics of vulnerable plaques are generalized, and some targeted strategies for boosting the accuracy of plaque vulnerability evaluation by imaging and the efficacy of plaque stabilization therapy (including antioxidant therapy, macrophage depletion therapy, regulation of lipid metabolism therapy, anti-inflammation therapy, etc.) are systematically summarized. In addition, existing challenges and prospects in this field are discussed, and it is believed to provide new thinking for the diagnosis and treatment of CVDs in the near future.
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Affiliation(s)
- Shuai Zhang
- Department of Cardiovascular Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin, 130021, China
| | - Yang Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yue Cao
- Department of Neurosurgery, The First Hospital of Jilin University, 71 Ximin Street, Changchun, Jilin, 130021, China
| | - Songtao Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Jian Sun
- Department of Cardiovascular Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin, 130021, China
| | - Yinghui Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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7
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Liang W, Qi Y, Yi H, Mao C, Meng Q, Wang H, Zheng C. The Roles of Adipose Tissue Macrophages in Human Disease. Front Immunol 2022; 13:908749. [PMID: 35757707 PMCID: PMC9222901 DOI: 10.3389/fimmu.2022.908749] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/12/2022] [Indexed: 01/02/2023] Open
Abstract
Macrophages are a population of immune cells functioning in antigen presentation and inflammatory response. Research has demonstrated that macrophages belong to a cell lineage with strong plasticity and heterogeneity and can be polarized into different phenotypes under different microenvironments or stimuli. Many macrophages can be recruited by various cytokines secreted by adipose tissue. The recruited macrophages further secrete various inflammatory factors to act on adipocytes, and the interaction between the two leads to chronic inflammation. Previous studies have indicated that adipose tissue macrophages (ATMs) are closely related to metabolic diseases like obesity and diabetes. Here, we will not only conclude the current progress of factors affecting the polarization of adipose tissue macrophages but also elucidate the relationship between ATMs and human diseases. Furthermore, we will highlight its potential in preventing and treating metabolic diseases as immunotherapy targets.
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Affiliation(s)
- Weizheng Liang
- Central Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China.,Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Yanxu Qi
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China
| | - Hongyang Yi
- National Clinical Research Centre for Infectious Diseases, The Third People's Hospital of Shenzhen and The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
| | - Chenyu Mao
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States
| | - Qingxue Meng
- Central Laboratory, The First Affiliated Hospital of Hebei North University, Zhangjiakou, China
| | - Hao Wang
- Shenzhen Key Laboratory, Shenzhen University General Hospital, Shenzhen, China.,Department of Obstetrics and Gynecology, Shenzhen University General Hospital, Shenzhen, China
| | - Chunfu Zheng
- Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China.,Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
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8
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Wu F, Zhang L, Wang L, Zhang D. AGT May Serve as a Prognostic Biomarker and Correlated with Immune Infiltration in Gastric Cancer. Int J Gen Med 2022; 15:1865-1878. [PMID: 35264871 PMCID: PMC8899101 DOI: 10.2147/ijgm.s351662] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/20/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose Angiotensinogen (AGT), as a component of the renin–angiotensin system (RAS), is associated with multiple risk factors for gastric cancer (GC). However, the relationship between AGT and tumor-infiltrating lymphocytes in GC remains elusive. Methods AGT expression was analyzed based on the Cancer Genome Atlas (TCGA) dataset. Kaplan–Meier curve was employed to assess the role of AGT expression in gastric patients’ prognosis. The association between AGT expression and tumor immune infiltration was further evaluated via exploring Tumour Immune Estimation Resource (TIMER) and The Gene Expression Profiling Interactive Analysis (GEPIA). We also used multiple public databases to analyse the aberrant methylation of AGT, construct protein–protein interaction (PPI) and gene ontology (GO) analyses. Results AGT was overexpressed in GC tissues compared with normal gastric tissues (P<0.05). High AGT expression related with poorer overall survival of patients with GC, especially in advanced GC patients. Immune infiltration analysis revealed that AGT was associated with several immune cells (including B cells, CD4+ T cells, macrophages), and AGT expression was also associated with the markers of NK cells, TAMs, Tregs, and so on (all P<0.05). Methylation analysis indicated that hypomethylation may lead to abnormal upregulation of the AGT. GO analysis showed that AGT and its related genes were enriched in systemic arterial blood pressure by hormone, regulation of blood volume by renin-angiotensin, NIK/NF-kappaB signaling, ficolin-1-rich granule and so on. Conclusion AGT could act as a promising biomarker for prognosis and immune infiltration in GC.
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Affiliation(s)
- Fanqi Wu
- Department of Respiratory, Lanzhou University Second Hospital, Lanzhou, Gansu Province, People’s Republic of China
| | - Longguo Zhang
- The Second Clinical Medical School, Lanzhou University, Lanzhou, Gansu Province, People’s Republic of China
| | - Li Wang
- Nanjing Medical University, Nanjing, Jiangsu Province, People’s Republic of China
| | - Dekui Zhang
- Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, Gansu Province, People’s Republic of China
- Correspondence: Dekui Zhang, Department of Gastroenterology, Lanzhou University Second Hospital, No. 82, Cuiyingmen, Lanzhou, Gansu Province, People’s Republic of China, Tel +86 13919788616, Email
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Carino A, Graziosi L, Marchianò S, Biagioli M, Marino E, Sepe V, Zampella A, Distrutti E, Donini A, Fiorucci S. Analysis of Gastric Cancer Transcriptome Allows the Identification of Histotype Specific Molecular Signatures With Prognostic Potential. Front Oncol 2021; 11:663771. [PMID: 34012923 PMCID: PMC8126708 DOI: 10.3389/fonc.2021.663771] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/06/2021] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer is the fifth most common malignancy but the third leading cause of cancer-associated mortality worldwide. Therapy for gastric cancer remain largely suboptimal making the identification of novel therapeutic targets an urgent medical need. In the present study we have carried out a high-throughput sequencing of transcriptome expression in patients with gastric cancers. Twenty-four patients, among a series of 53, who underwent an attempt of curative surgery for gastric cancers in a single center, were enrolled. Patients were sub-grouped according to their histopathology into diffuse and intestinal types, and the transcriptome of the two subgroups assessed by RNAseq analysis and compared to the normal gastric mucosa. The results of this investigation demonstrated that the two histopathology phenotypes express two different patterns of gene expression. A total of 2,064 transcripts were differentially expressed between neoplastic and non-neoplastic tissues: 772 were specific for the intestinal type and 407 for the diffuse type. Only 885 transcripts were simultaneously differentially expressed by both tumors. The per pathway analysis demonstrated an enrichment of extracellular matrix and immune dysfunction in the intestinal type including CXCR2, CXCR1, FPR2, CARD14, EFNA2, AQ9, TRIP13, KLK11 and GHRL. At the univariate analysis reduced levels AQP9 was found to be a negative predictor of 4 years survival. In the diffuse type low levels CXCR2 and high levels of CARD14 mRNA were negative predictors of 4 years survival. In summary, we have identified a group of genes differentially regulated in the intestinal and diffuse histotypes of gastric cancers with AQP9, CARD14 and CXCR2 impacting on patients' prognosis, although CXCR2 is the only factor independently impacting overall survival.
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Affiliation(s)
- Adriana Carino
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Luigina Graziosi
- S.C.Gastroenterologia, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Silvia Marchianò
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Michele Biagioli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Elisabetta Marino
- S.C.Gastroenterologia, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Valentina Sepe
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Angela Zampella
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | - Annibale Donini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Stefano Fiorucci
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
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10
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Tsukamoto H, Komohara Y, Oshiumi H. The role of macrophages in anti-tumor immune responses: pathological significance and potential as therapeutic targets. Hum Cell 2021; 34:1031-1039. [PMID: 33905102 DOI: 10.1007/s13577-021-00514-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 02/22/2021] [Indexed: 12/24/2022]
Abstract
Malignant tumors comprise various types of normal cells and tumor cells, and are infiltrated by large numbers of immune cells, including macrophages. The results of numerous studies on the function and significance of intratumoral macrophages (tumor-associated macrophages) suggest that these macrophages generally enhance tumor progression rather than act as anti-tumor immune agents. Although much remains unknown, in this review, we attempt to describe the role of macrophages in the tumor microenvironment, and discuss their potential mechanisms on the recent immunotherapy.
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Affiliation(s)
- Hirotake Tsukamoto
- Department of Immunology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.,Division of Clinical Immunology and Cancer Immunotherapy, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoshihiro Komohara
- Department of Pathology, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Chuo-Ku, Kumamoto, 860-8556, Japan.
| | - Hiroyuki Oshiumi
- Department of Immunology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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11
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Sul OJ, Hyun HJ, Rajasekaran M, Suh JH, Choi HS. Estrogen enhances browning in adipose tissue by M2 macrophage polarization via heme oxygenase-1. J Cell Physiol 2021; 236:1875-1888. [PMID: 32716106 DOI: 10.1002/jcp.29971] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/14/2020] [Indexed: 12/19/2022]
Abstract
Loss of ovarian function results in increased fat mass, leading to the accumulation of adipose tissue macrophages that participate in chronic inflammation. We hypothesized that ovariectomy (OVX)-induced increases in body weight and fat mass are associated with decreased adipose tissue (AT) browning due to estrogen (E2 ) deficiency. In mice, OVX decreased AT browning along with increased body weight, fat mass, and size of lipid droplets 12 weeks after surgery. Exogenous E2 recovered the OVX-induced changes. AT browning was enhanced by M2 macrophages induced by exogenous E2. E2 -induced M2 polarization occurred due to the increased expression of heme oxygenase-1 (HO-1) in macrophages, leading to decreased reactive oxygen species levels. Collectively, we demonstrated that E2 enhances AT browning via M2 polarization mediated by HO-1.
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Affiliation(s)
- Ok-Joo Sul
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Hyo-Jung Hyun
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | | | - Jae-Hee Suh
- Department of Pathology, Ulsan University Hospital, Ulsan, Korea
| | - Hye-Seon Choi
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
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12
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Fang Z, Jiang C, Li S. The Potential Regulatory Roles of Circular RNAs in Tumor Immunology and Immunotherapy. Front Immunol 2021; 11:617583. [PMID: 33613544 PMCID: PMC7886782 DOI: 10.3389/fimmu.2020.617583] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022] Open
Abstract
Circular RNAs (circRNAs) are covalently closed RNA molecules in eukaryotes with features of high stability, tissue-specific and cell-specific expression. According to their biogenesis, circRNAs are mainly classified into five types, i.e. exonic circRNAs (EciRNAs), exon-intron circRNAs (EIciRNAs), intronic RNAs (CiRNAs), fusion circRNAs (f-circRNAs), and read-through circRNAs (rt-circRNAs). CircRNAs have been emerging as important non-coding regulatory RNAs in a variety of human cancers. CircRNA4s were revealed to exert regulatory function through multiple mechanisms, such as sponges/decoys of miRNAs and proteins, enhancers of protein functions, protein scaffolds, protein recruitment, or protein translation templates. Furthermore, some circRNAs are intensively associated with immune cells in tumor immune microenvironment (TIME), e.g. circARSP91 and natural killer cells. Through regulating immune checkpoint genes, circRNAs are demonstrated to modulate the immune checkpoint blockade immunotherapy, e.g. circCPA4 could up-regulate PD-L1 expression. In summary, we reviewed the molecular features of circRNAs and mechanisms how they exert functions. We further summarized functional implications of circRNA regulations in tumor immunology and immunotherapy. Further understanding of the regulatory roles of circRNAs in tumor immunology and immunotherapy will benefit tumor treatment.
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Affiliation(s)
- Zhixiao Fang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chunjie Jiang
- Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Shengli Li
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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13
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Liu X, Xu Q, Li Z, Xiong B. Integrated analysis identifies AQP9 correlates with immune infiltration and acts as a prognosticator in multiple cancers. Sci Rep 2020; 10:20795. [PMID: 33247170 PMCID: PMC7699650 DOI: 10.1038/s41598-020-77657-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 11/13/2020] [Indexed: 12/24/2022] Open
Abstract
Aquaporin 9 (AQP9), as an aquaglyceroporin, is expressed in many immune cells and plays important role in tumor initiation and progression. However, the relationship between AQP9 and tumor-infiltrating cells, and its prognostic value in cancers still require comprehensive understanding. Herein, we aimed to elucidate the correlations of AQP9 with prognosis and immune infiltration levels in diverse cancers. We detected the expression and survival data of AQP9 through Oncomine, TIMER, Kaplan–Meier Plotter and PrognoScan databases. The correlations between AQP9 and immune infiltrates were analyzed in TIMER database. Our results found that high AQP9 expression was significantly correlated with worse prognosis in breast, colon and lung cancers, while predicted better prognosis in gastric cancer. Moreover, AQP9 had significant association with various immune infiltrating cells including CD8+ and CD4+ T cells, neutrophils, macrophages and dendritic cells (DCs), and diverse immune gene markers in BRCA, COAD, LUAD, LUSC and STAD. AQP9 was also significantly correlated with the regulation of tumor associated macrophages (TAM). These results indicate that AQP9 can play as a significant biomarker to determine the prognosis and the immune infiltrating levels in different cancers. It might also contribute to the development of the immunotherapy in breast, colon, lung and gastric cancers.
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Affiliation(s)
- Xiaohong Liu
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China.,Department of Gastric and Colorectal Surgical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China
| | - Qian Xu
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China.,Department of Gastric and Colorectal Surgical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China
| | - Zijing Li
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China.,Department of Gastric and Colorectal Surgical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China
| | - Bin Xiong
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China. .,Department of Gastric and Colorectal Surgical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, People's Republic of China. .,Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan, 430071, People's Republic of China. .,Hubei Cancer Clinical Study Center, Wuhan, 430071, People's Republic of China.
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14
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Kai K, Komohara Y, Shinojima N, Yano S, Mikami Y, Yokoo H, Mukasa A. A case of suprasellar Erdheim-Chester disease and characterization of macrophage phenotype. J Clin Exp Hematop 2020; 60:179-182. [PMID: 33028762 PMCID: PMC7810246 DOI: 10.3960/jslrt.20032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Erdheim-Chester disease (ECD) is a non-Langerhans form of histiocytosis that occurs in systemic organs, such as bone, the central nervous system, cardiovascular system, lungs, and kidneys. We report the case of a 68-year-old woman with a cranial pharyngeal tumor and a bone lesion in the tibia. The case was diagnosed as ECD. Pathological analysis showed the typical feature of foamy macrophage accumulation. The macrophages were positive for CD68, and negative for CD1a and S100. The BRAF V600E mutation was identified. In addition, immunohistochemistry was performed for the detailed characterization of the macrophages. The macrophages had low proliferative activity and an M2-like phenotype, and they expressed colony-stimulating factor-1 receptor (CSF1R) on the cell surface.
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Affiliation(s)
- Keitaro Kai
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.,Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Naoki Shinojima
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Shigetoshi Yano
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshiki Mikami
- Department of Diagnostic Pathology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hideaki Yokoo
- Department of Human Pathology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Akitake Mukasa
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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15
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Yoshii D, Nakagawa T, Komohara Y, Kawaguchi H, Yamada S, Tanimoto A. Phenotypic Changes in Macrophage Activation in a Model of Nonalcoholic Fatty Liver Disease using Microminipigs. J Atheroscler Thromb 2020; 28:844-851. [PMID: 33012740 PMCID: PMC8326174 DOI: 10.5551/jat.57703] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aim:
Non-alcoholic fatty liver disease (NAFLD) is one of the most common chronic liver disorders associated with metabolic syndrome, and its prevalence has been on the rise. The pathogenesis of NAFLD has not yet been sufficiently elucidated due to the multifactorial nature of the disease, although the activation of macrophages/Kupffer cells is considered to be involved. We previously reported an animal model of NAFLD using Microminipigs
TM
(µMPs) fed high-fat diets containing cholesterol with or without cholic acid. The aim of this study was to investigate the phenotypic changes of macrophages that occur during the development of NAFLD.
Methods:
Immunohistochemistry of macrophages, lymphocytes, and stellate cells was performed using liver samples, and the density of positive cells was analyzed.
Results:
The number of Iba-1-positive macrophages increased with increasing cholesterol content in the diet. The numbers of CD163-positive macrophages and CD204-positive macrophages also increased with increasing cholesterol content in the diet; however, the proportion of CD204-positive macrophages among Iba-1-positive macrophages was significantly reduced by cholic acid supplementation.
Conclusion:
The results suggest that lipid accumulation induced macrophage recruitment in swine livers, and that the number of M2-like macrophages increased at the early stage of NAFLD, while the number of M1-like macrophages increased at the late stage of NAFLD, resulting in a liver condition like non-alcoholic steatohepatitis. We provide evidence of the phenotypic changes that occur in macrophages during the development of NAFLD that has never been reported before using µMPs.
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Affiliation(s)
- Daiki Yoshii
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Takenobu Nakagawa
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University.,Center for Metabolic Regulation of Healthy Aging, Kumamoto University
| | - Hiroaki Kawaguchi
- Department of Hygiene and Health Promotion Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | - Sohsuke Yamada
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University
| | - Akihide Tanimoto
- Department of Pathology, Kagoshima University Graduate School of Medical and Dental Sciences
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16
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Fujiwara Y, Ohnishi K, Horlad H, Saito Y, Shiraishi D, Takeya H, Yoshii D, Kaieda S, Hoshino T, Komohara Y. CD163 deficiency facilitates lipopolysaccharide-induced inflammatory responses and endotoxin shock in mice. Clin Transl Immunology 2020; 9:e1162. [PMID: 33005412 PMCID: PMC7518957 DOI: 10.1002/cti2.1162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 12/12/2022] Open
Abstract
Objectives Septic (or endotoxin) shock is a severe systemic inflammatory disease caused by bacteraemia or endotoxaemia. Although it is known that increased serum levels of CD163 are observed in septic/endotoxin shock patients, the exact function and significance of CD163 in macrophage activation remain unclear. Therefore, in the current study, we tested whether CD163 contributes to the pathogenesis of endotoxin shock in mice. Methods and results In samples obtained from autopsy, the number of CD163‐positive macrophages was increased in the kidney, liver, heart, bone marrow and spleen of patients who had died from septic/endotoxin shock when compared to patients who had died from other causes. The animal study revealed a significantly lower survival rate in CD163‐deficient mice after lipopolysaccharide (LPS) injection. Several cytokines and oxidative stress‐related molecules were significantly elevated in the sera of LPS‐induced endotoxin shock mice models. Higher concentrations of IL‐6, TNF‐α, IL‐1β, nitrite (NO2‐) and nitrate (NO3‐) and a lower concentration of IL‐10 were observed in CD163‐deficient mice treated with LPS. Similar results were observed in CD163‐deficient LPS‐stimulated macrophages. Furthermore, in an antitype II collagen antibody‐induced arthritis (CAIA), rheumatoid arthritis model, inflammation and bone erosion scores as well as the expression of IL‐6 and IL‐1β were significantly increased in CD163‐deficient mice. Conclusions CD163 was suggested to be involved in the regulation of inflammatory cytokine expression in septic/endotoxin shock and CAIA.
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Affiliation(s)
- Yukio Fujiwara
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - Koji Ohnishi
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - Hasita Horlad
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - Yoichi Saito
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan.,Laboratory of Biomaterials Institute for Frontier Life and Medical Sciences Kyoto University Kyoto Japan.,Research Fellow of Japan Society for the Promotion of Science Tokyo Japan
| | - Daisuke Shiraishi
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - Hiroto Takeya
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - Daiki Yoshii
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan
| | - Shinjiro Kaieda
- Division of Respirology, Neurology, and Rheumatology Department of Medicine Kurume University School of Medicine Kurume Japan
| | - Tomoaki Hoshino
- Division of Respirology, Neurology, and Rheumatology Department of Medicine Kurume University School of Medicine Kurume Japan
| | - Yoshihiro Komohara
- Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University Kumamoto Japan.,Center for Metabolic Regulation of Healthy Aging Kumamoto University Kumamoto Japan
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17
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Li LL, Dai B, Sun YH, Zhang TT. The activation of IL-17 signaling pathway promotes pyroptosis in pneumonia-induced sepsis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:674. [PMID: 32617294 PMCID: PMC7327349 DOI: 10.21037/atm-19-1739] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background Pyroptosis is closely relevant to sepsis. However, the molecular mechanisms of pyroptosis in pneumonia-induced sepsis are still not fully understood. Thus, this study aimed to find the specific molecular pathways associated with pyroptosis and explore their relationship in pneumonia-induced sepsis. Methods First, significant signaling pathways related to pneumonia-induced sepsis were screened by bioinformatics analysis based on GSE48080. The peripheral blood samples from patients with pneumonia-induced sepsis and healthy subjects were collected. Pneumonia-induced sepsis rat models were also established. Then, inflammatory response, pyroptosis, and regulatory T cells (Tregs)/T-helper 17 (Th17), Th1/Th2, and M1/M2 cell ratios in pneumonia-induced sepsis were evaluated. Results IL-17 signaling pathway was significantly related to pneumonia-induced sepsis by bioinformatics analysis. Compared with healthy groups, the higher of Th17/Treg, Th1/Th2 and M1/M2 cell radios in the patients and sepsis rat model indicated that pneumonia-induced sepsis caused a severe inflammatory response. This result was confirmed by higher levels of pro-inflammatory factors (IL-6, TNF-α, IL-1β, and IL-18) and an inflammation indicator (LDH), as well as pyroptosis occurrence in sepsis. Additionally, the up-regulation of key molecules (HMGB1, RAGE, IL-17A, TRAF6 and NK-κB) in the IL-17 signaling pathway suggested the IL-17 pathway was activated. Moreover, the release of IL-1β and IL-18 and the levels of the molecules (NLRP3, NLRC4, Cleaved caspase-1, and Cleaved GSDMD) associated with caspase-1-dependent pyroptosis were up-regulated in pneumonia-induced sepsis. Conclusions As NK-κB activation can promote the development of caspase-1-dependent pyroptosis, these findings suggested that the activation of the IL-17 signaling pathway could promote pyroptosis in pneumonia-induced sepsis.
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Affiliation(s)
- Li-Li Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Bing Dai
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yu-Han Sun
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Ting-Ting Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
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18
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Ma L, Xu Y, Zhang Y, Ji T, Li Y. Lower Levels of Circulating Adiponectin in Elderly Patients with Metabolic Inflammatory Syndrome: A Cross-Sectional Study. Diabetes Metab Syndr Obes 2020; 13:591-596. [PMID: 32184638 PMCID: PMC7054051 DOI: 10.2147/dmso.s242397] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 02/16/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Metabolic inflammation plays an important role in the pathogenesis of atherosclerosis, type 2 diabetes, non-alcoholic fatty liver disease, and obesity. The above metabolic disorders often coexist and are closely related with systemic low-grade inflammation. Metabolic inflammatory syndrome (MIS), a cluster of these four metabolic disorders, is a novel concept that is thought to be a better predictor of coronary heart disease than metabolic syndrome. Adiponectin is an adipokine that increases insulin sensitivity and antioxidation as well as has an anti-atherosclerosis effect. It is unclear whether adiponectin is associated with MIS. The objective of this study was to assess whether circulating adiponectin can be used as an indicator for MIS in elderly adults. METHODS A total of 136 elderly inpatients were divided into two groups: the MIS group and the non-MIS group. Characteristics, inflammatory markers, blood lipid metabolism, insulin resistance, and circulating adiponectin levels were assessed and compared between the two groups. Logistic regression analysis was used to explore the association between the associated factors and MIS. RESULTS MIS patients were more likely to have a higher body mass index, have a higher fasting blood glucose level, be smokers, have fundus arteriosclerosis, have lower levels of adiponectin (4044.90 ± 3906.82 ng/mL vs 8503.89 ± 3523.89 ng/mL, p < 0.001), and have higher levels of inflammation (white blood cell and C-reactive protein) than non-MIS patients. Multiple factor analysis showed that lower adiponectin levels (OR = 22.937, p < 0.001) were independently associated with MIS. Adiponectin levels were lower in the vascular disease (2673.29 ± 1930.05 ng/mL vs 7194.38 ± 4615.83 ng/mL, p = 0.001), atherosclerosis (2374.14 [1496.41-4263.90] ng/mL vs 6037.48 [3865.61-10,373.60] ng/mL, p < 0.001), and type 2 diabetes (2391.73 [1386.41-4069.68] ng/mL vs 8916.03 [5801.14-12,724.45] ng/mL, p < 0.001) subgroups than in the non-MIS group. CONCLUSION Lower adiponectin levels in serum are associated with MIS. Low adiponectin may be used as a biomarker for atherosclerosis in patients with MIS.
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Affiliation(s)
- Lina Ma
- Department of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing100053, People’s Republic of China
| | - Yanhong Xu
- Department of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing100053, People’s Republic of China
- Department of Geriatrics, Miyun Teaching Hospital of Capital Medical University, Beijing101500, People’s Republic of China
| | - Yaxin Zhang
- Department of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing100053, People’s Republic of China
| | - Tong Ji
- Department of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing100053, People’s Republic of China
| | - Yun Li
- Department of Geriatrics, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing100053, People’s Republic of China
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19
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Lu M, He Y, Gong M, Li Q, Tang Q, Wang X, Wang Y, Yuan M, Yu Z, Xu B. Role of Neuro-Immune Cross-Talk in the Anti-obesity Effect of Electro-Acupuncture. Front Neurosci 2020; 14:151. [PMID: 32180699 PMCID: PMC7059539 DOI: 10.3389/fnins.2020.00151] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/10/2020] [Indexed: 12/14/2022] Open
Abstract
There is evidence to show that electro-acupuncture (EA) has a promotive effect on both lipolysis and thermogenesis, and that these mechanisms underlie the anti-obesity effect of EA. The sympathetic nervous system (SNS) is known to play a role in thermogenesis. Additionally, obesity is characterized by a chronic low-grade inflammatory state. Based on these findings, the aim of the present study is to investigate the potential neuro-immune mechanisms underlying the therapeutic effect of EA in obesity. In the experiment, we used a high fat diet (HFD) rats model to study the effect of EA in reducing body weight. EA increases the activity of sympathetic nerves in inguinal white adipose tissue (iWAT), especially in the HFD group. Compared to HFD rats, EA can decrease sympathetic associated macrophage (SAM) and the level of norepinephrine transporter protein (Slc6a2). The relative uncoupling protein 1 expression shows EA increases thermogenesis in iWAT, and increases β3 receptors. Interestingly, injecting β antagonist in iWAT increases Slc6a2 protein levels. Additionally, the SNS-macrophage cross-talk response to EA showed in iWAT but not in epididymis white adipose tissue. The results of the present study indicate that EA exerts its anti-obesity effect via three mechanisms: (1) inhibition of SAMs and the norepinephrine transporter protein SlC6a2, (2) promoting SNS activity and thermogenesis, and (3) regulating immunologic balance.
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Affiliation(s)
- Mengjiang Lu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yan He
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Meirong Gong
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qian Li
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qianqian Tang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xuan Wang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yaling Wang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Mengqian Yuan
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhi Yu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Bin Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
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20
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Zhang X, Li J, Luo S, Wang M, Huang Q, Deng Z, de Febbo C, Daoui A, Liew PX, Sukhova GK, Metso J, Jauhiainen M, Shi GP, Guo J. IgE Contributes to Atherosclerosis and Obesity by Affecting Macrophage Polarization, Macrophage Protein Network, and Foam Cell Formation. Arterioscler Thromb Vasc Biol 2020; 40:597-610. [PMID: 31996021 DOI: 10.1161/atvbaha.119.313744] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE By binding to its high-affinity receptor FcεR1, IgE activates mast cells, macrophages, and other inflammatory and vascular cells. Recent studies support an essential role of IgE in cardiometabolic diseases. Plasma IgE level is an independent predictor of human coronary heart disease. Yet, a direct role of IgE and its mechanisms in cardiometabolic diseases remain incompletely understood. Approach and Results: Using atherosclerosis prone Apoe-/- mice and IgE-deficient Ige-/- mice, we demonstrated that IgE deficiency reduced atherosclerosis lesion burden, lesion lipid deposition, smooth muscle cell and endothelial cell contents, chemokine MCP (monocyte chemoattractant protein)-1 expression and macrophage accumulation. IgE deficiency also reduced bodyweight gain and increased glucose and insulin sensitivities with significantly reduced plasma cholesterol, triglyceride, insulin, and inflammatory cytokines and chemokines, including IL (interleukin)-6, IFN (interferon)-γ, and MCP-1. From atherosclerotic lesions and peritoneal macrophages from Apoe-/-Ige-/- mice that consumed an atherogenic diet, we detected reduced expression of M1 macrophage markers (CD68, MCP-1, TNF [tumor necrosis factor]-α, IL-6, and iNOS [inducible nitric oxide synthase]) but increased expression of M2 macrophage markers (Arg [arginase]-1 and IL-10) and macrophage-sterol-responsive-network molecules (complement C3, lipoprotein lipase, LDLR [low-density lipoprotein receptor]-related protein 1, and TFR [transferrin]) that suppress macrophage foam cell formation. These IgE activities can be reproduced in bone marrow-derived macrophages from wild-type mice, but muted in cells from FcεR1-deficient mice, or blocked by anti-IgE antibody or complement C3 deficiency. CONCLUSIONS IgE deficiency protects mice from diet-induced atherosclerosis, obesity, glucose tolerance, and insulin resistance by regulating macrophage polarization, macrophage-sterol-responsive-network gene expression, and foam cell formation.
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Affiliation(s)
- Xian Zhang
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Jie Li
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.).,Department of Geriatrics, National Key Clinic Specialty, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China (J.L.)
| | - Songyuan Luo
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Minjie Wang
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Qin Huang
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Zhiyong Deng
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Caroline de Febbo
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Aida Daoui
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Pei Xiong Liew
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Galina K Sukhova
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Jari Metso
- Minerva Foundation Institute for Medical Research, National Institute for Health and Welfare, Genomics and Biobank Unit, Biomedicum 2U, Helsinki, Finland (J.M., M.J.)
| | - Matti Jauhiainen
- Minerva Foundation Institute for Medical Research, National Institute for Health and Welfare, Genomics and Biobank Unit, Biomedicum 2U, Helsinki, Finland (J.M., M.J.)
| | - Guo-Ping Shi
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.)
| | - Junli Guo
- From the Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.Z., J.L., S.L., M.W., Q.H., Z.D., C.d.F., A.D., P.X.L., G.K.S., G.-P.S., J.G.).,Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research & Key Laboratory of Emergency and Trauma of Ministry of Education, Institute of Cardiovascular Research of the First Affiliated Hospital, Hainan Medical University, Haikou 571199, China (J.G.)
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21
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Characterization of tumor-infiltrating immune cells in relation to microbiota in colorectal cancers. Cancer Immunol Immunother 2019; 69:23-32. [DOI: 10.1007/s00262-019-02433-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 11/19/2019] [Indexed: 01/07/2023]
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Yang T, Sun J, Wei B, Liu S. SENP1-mediated NEMO de-SUMOylation inhibits intermittent hypoxia induced inflammatory response of microglia in vitro. J Cell Physiol 2019; 235:3529-3538. [PMID: 31549402 DOI: 10.1002/jcp.29241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 08/26/2019] [Indexed: 01/07/2023]
Abstract
Among the seven small ubiquitin-like modifier (SUMO)-specific proteases (SENPs), our previous work showed that SENP1 suppressed nuclear factor kappa B (NF-κB) activation and alleviates the inflammatory response in microglia. However, the mechanism is still largely unknown. In this study, western blot analysis and enzyme-linked immunosorbent assay were utilized for evaluating the extent of NF-κB activation and expression of proinflammatory cytokines. qPCR and western blot analysis were performed to detect SENP1 expression. Coimmunoprecipitation followed by western blot analysis was applied to measure the changes in SUMOylation of NF-κB essential modulator (NEMO) and P65 in microglia with or without overexpression of SENP1. As the results, we found that intermittent hypoxia (IH) triggered the activation of NF-κB and upregulated the expression levels of tumor necrosis factor-α and interleukin-6. Interestingly, our data indicated that the SUMOylation of NEMO was enhanced by IH while SUMOylation of P65 was not affected. Further, our data showed that overexpression of SENP1 could decrease the extent of NF-κB activation and inhibit the inflammatory response of microglia through regulating the SUMOylation of NEMO. Collectively, this study presents the first report of the SENP1-controlled de-SUMOylation process of NEMO and its critical role in regulating NF-κB activation and proinflammatory cytokines secretion in microglia cells. This study would benefit for clarifying the role of SENP1 in IH-induced activation of microglia, thus providing potential therapeutic targets for obstructive sleep apnea treatment.
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Affiliation(s)
- Tianyun Yang
- Department of Respiratory Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jinyuan Sun
- Department of Respiratory Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Bo Wei
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Song Liu
- Department of Respiratory Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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23
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Yamashiro S, Uchikawa H, Yoshikawa M, Kuriwaki K, Hitoshi Y, Yoshida A, Komohara Y, Mukasa A. Histological analysis of infiltrating macrophages in the cerebral aneurysm walls. J Clin Neurosci 2019; 67:204-209. [PMID: 31227407 DOI: 10.1016/j.jocn.2019.05.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/21/2019] [Indexed: 11/18/2022]
Abstract
A series of recent evidences suggested activated macrophages have broadly two distinct forms that possess opposite functions for the process of inflammation: classically activated macrophages (M1/kill macrophages) and alternatively activated macrophages (M2/repair macrophages) according to their functions and expression markers. To elucidate what roles those two phenotypes of macrophages play in the evolution of cerebral aneurysm, the presence of macrophages inside the aneurysm walls was assessed with an immunohistochemical approach. The portions of the aneurysm domes deflated after neck clipping were utilized for the further histological examinations, including immunostainings with five antibodies to identify macrophage subpopulations. In this study, contrary to the previous reports, the following various ratios of subtypes were observed in the aneurysm walls: M1 > M2 (2 cases), M1 < M2 (2 cases), M1 = M2 (3 cases). While M1-like macrophages have been typically regarded as a main driver of the degenerating process, these surprisingly richer presences of M2-like macrophages in the aneurysm walls suggests that an unrecognized biological process might be in play in aneurysm development.
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Affiliation(s)
- Shigeo Yamashiro
- Division of Neurosurgery, Department of Cerebrovascular Medicine and Surgery, Saiseikai Kumamoto Hospital, Japan.
| | - Hiroki Uchikawa
- Department of Neurosurgery, Minamata City General Hospital, Japan
| | - Makoto Yoshikawa
- Department of Neurosurgery, Minamata City General Hospital, Japan
| | - Kazumi Kuriwaki
- Department of Diagnostic Pathology, Kumamoto Rosai Hospital, Japan
| | | | | | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University, Japan
| | - Akitake Mukasa
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Japan
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24
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Kim M, Seol MH, Lee BC. The Effects of Poncirus fructus on Insulin Resistance and the Macrophage-Mediated Inflammatory Response in High Fat Diet-Induced Obese Mice. Int J Mol Sci 2019; 20:ijms20122858. [PMID: 31212747 PMCID: PMC6628178 DOI: 10.3390/ijms20122858] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/09/2019] [Accepted: 06/11/2019] [Indexed: 02/06/2023] Open
Abstract
Obesity is a chronic low-grade inflammatory condition in which hypertrophied adipocytes and adipose tissue immune cells, mainly macrophages, contribute to increased circulating levels of proinflammatory cytokines. Obesity-associated chronic low-grade systemic inflammation is considered a focal point and a therapeutic target in insulin resistance and metabolic diseases. We evaluate the effect of Poncirus fructus (PF) on insulin resistance and its mechanism based on inflammatory responses in high-fat diet (HFD)-induced obese mice. Mice were fed an HFD to induce obesity and then administered PF. Body weight, epididymal fat and liver weight, glucose, lipid, insulin, and histologic characteristics were evaluated to determine the effect of PF on insulin resistance by analyzing the proportion of macrophages in epididymal fat and liver and measured inflammatory gene expression. PF administration significantly decreased the fasting and postprandial glucose, fasting insulin, HOMA-IR, total-cholesterol, triglycerides, and low-density lipoprotein cholesterol levels. The epididymal fat tissue and liver showed a significant decrease of fat accumulation in histological analysis. PF significantly reduced the number of adipose tissue macrophages (ATMs), F4/80+ Kupffer cells, and CD68+ Kupffer cells, increased the proportion of M2 phenotype macrophages, and decreased the gene expression of inflammatory cytokines. These results suggest that PF could be used to improve insulin resistance through modulation of macrophage-mediated inflammation and enhance glucose and lipid metabolism.
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Affiliation(s)
- Mia Kim
- Department of Cardiovascular and Neurologic Disease (Stroke Center), College of Korean Medicine, Kyung Hee University, 23 Kyungheedae-ro, Dongdaemun, Seoul 02447, Korea.
| | - Mi Hyeon Seol
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Byung-Cheol Lee
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
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25
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Paolicelli RC, Angiari S. Microglia immunometabolism: From metabolic disorders to single cell metabolism. Semin Cell Dev Biol 2019; 94:129-137. [PMID: 30954657 DOI: 10.1016/j.semcdb.2019.03.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/01/2019] [Accepted: 03/29/2019] [Indexed: 12/16/2022]
Abstract
Since the observation that obesity-associated low-grade chronic inflammation is a crucial driver for the onset of systemic metabolic disorders such as type 2 diabetes, a number of studies have highlighted the role of both the innate and the adaptive immune system in such pathologies. Moreover, researchers have recently demonstrated that immune cells can modulate their intracellular metabolic profile to control their activation and effector functions. These discoveries represent the foundations of a research area known as "immunometabolism", an emerging field of investigation that may lead to the development of new-generation therapies for the treatment of inflammatory and metabolic diseases. Most of the studies in the field have focused their attention on both circulating white blood cells and leukocytes residing within metabolic tissues such as adipose tissue, liver and pancreas. However, immunometabolism of immune cells in non-metabolic tissues, including central nervous system microglia, have long been neglected. In this review, we highlight the most recent findings suggesting that microglial cells play a central role in metabolic disorders and that interfering with the metabolic profile of microglia can modulate their functionality and pathogenicity in neurological diseases.
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Affiliation(s)
- Rosa C Paolicelli
- Department of Physiology, University of Lausanne, Rue du Bugnon 7, 1005 Lausanne, Switzerland.
| | - Stefano Angiari
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, D02 R590, Dublin, Ireland.
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26
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Guilherme A, Henriques F, Bedard AH, Czech MP. Molecular pathways linking adipose innervation to insulin action in obesity and diabetes mellitus. Nat Rev Endocrinol 2019; 15:207-225. [PMID: 30733616 PMCID: PMC7073451 DOI: 10.1038/s41574-019-0165-y] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Adipose tissue comprises adipocytes and many other cell types that engage in dynamic crosstalk in a highly innervated and vascularized tissue matrix. Although adipose tissue has been studied for decades, it has been appreciated only in the past 5 years that extensive arborization of nerve fibres has a dominant role in regulating the function of adipose tissue. This Review summarizes the latest literature, which suggests that adipocytes signal to local sensory nerve fibres in response to perturbations in lipolysis and lipogenesis. Such adipocyte signalling to the central nervous system causes sympathetic output to distant adipose depots and potentially other metabolic tissues to regulate systemic glucose homeostasis. Paracrine factors identified in the past few years that mediate such adipocyte-neuron crosstalk are also reviewed. Similarly, immune cells and endothelial cells within adipose tissue communicate with local nerve fibres to modulate neurotransmitter tone, blood flow, adipocyte differentiation and energy expenditure, including adipose browning to produce heat. This understudied field of neurometabolism related to adipose tissue biology has great potential to reveal new mechanistic insights and potential therapeutic strategies for obesity and type 2 diabetes mellitus.
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Affiliation(s)
- Adilson Guilherme
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Felipe Henriques
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Alexander H Bedard
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Michael P Czech
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA.
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27
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de Carvalho Santuchi M, Dutra MF, Vago JP, Lima KM, Galvão I, de Souza-Neto FP, Morais e Silva M, Oliveira AC, de Oliveira FCB, Gonçalves R, Teixeira MM, Sousa LP, dos Santos RAS, da Silva RF. Angiotensin-(1-7) and Alamandine Promote Anti-inflammatory Response in Macrophages In Vitro and In Vivo. Mediators Inflamm 2019; 2019:2401081. [PMID: 30918468 PMCID: PMC6409041 DOI: 10.1155/2019/2401081] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/12/2018] [Accepted: 12/10/2018] [Indexed: 02/06/2023] Open
Abstract
The renin-angiotensin system (RAS) peptides play an important role in inflammation. Resolution of inflammation contributes to restore tissue homeostasis, and it is characterized by neutrophil apoptosis and their subsequent removal by macrophages, which are remarkable plastic cells involved in the pathophysiology of diverse inflammatory diseases. However, the effects of RAS peptides on different macrophage phenotypes are still emerging. Here, we evaluated the effects of angiotensin-(1-7) (Ang-(1-7)) and the most novel RAS peptide, alamandine, on resting (M0), proinflammatory M(LPS+IFN-γ), and anti-inflammatory M(IL-4) macrophage phenotypes in vitro, as well as on specific immune cell populations and macrophage subsets into the pleural cavity of LPS-induced pleurisy in mice. Our results showed that Ang-(1-7) and alamandine, through Mas and MrgD receptors, respectively, do not affect M0 macrophages but reduce the proinflammatory TNF-α, CCL2, and IL-1β transcript expression levels in LPS+IFN-γ-stimulated macrophages. Therapeutic administration of these peptides in LPS-induced inflammation in mice decreased the number of neutrophils and M1 (F4/80lowGr1+CD11bmed) macrophage frequency without affecting the other investigated macrophage subsets. Our data suggested that both Ang-(1-7) and alamandine, through their respective receptors Mas and MrgD, promote an anti-inflammatory reprogramming of M(LPS+IFN-γ)/M1 macrophages under inflammatory circumstances and potentiate the reprogramming induced by IL-4. In conclusion, our work sheds light on the emerging proresolving properties of Ang-(1-7) and alamandine, opening new avenues for the treatment of inflammatory diseases.
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Affiliation(s)
- Melissa de Carvalho Santuchi
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Miriane Fernandes Dutra
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Juliana Priscila Vago
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Kátia Maciel Lima
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Izabela Galvão
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fernando Pedro de Souza-Neto
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mario Morais e Silva
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Aline Cristina Oliveira
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Ricardo Gonçalves
- Department of Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Lirlândia Pires Sousa
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Robson Augusto Souza dos Santos
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Rafaela Fernandes da Silva
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
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28
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Snyder B, Duong P, Trieu J, Cunningham RL. Androgens modulate chronic intermittent hypoxia effects on brain and behavior. Horm Behav 2018; 106:62-73. [PMID: 30268884 PMCID: PMC6486829 DOI: 10.1016/j.yhbeh.2018.09.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 09/19/2018] [Accepted: 09/25/2018] [Indexed: 12/31/2022]
Abstract
Sleep apnea is associated with testosterone dysregulation as well as increased risk of developing neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD). A rodent model of the hypoxemic events of sleep apnea, chronic intermittent hypoxia (CIH), has been previously documented to impair cognitive function and elevate oxidative stress in male rats, while simultaneously decreasing testosterone. Therefore, androgens may modulate neuronal function under CIH. To investigate the role of androgens during CIH, male rats were assigned to one of four hormone groups: 1) gonadally intact, 2) gonadectomized (GDX), 3) GDX + testosterone (T) supplemented, or 4) GDX + dihydrotestosterone (DHT) supplemented. Each group was exposed to either normal room air or CIH exposure for one week, followed by memory and motor task assessments. Brain regions associated with AD and PD (entorhinal cortex, dorsal hippocampus, and substantia nigra) were examined for oxidative stress and inflammatory markers, key characteristics of AD and PD. Gonadally intact rats exhibited elevated oxidative stress due to CIH, but no significant memory and motor impairments. GDX increased memory impairments, regardless of CIH exposure. T preserved memory function and prevented detrimental CIH-induced changes. In contrast, DHT was not protective, as evidenced by exacerbated oxidative stress under CIH. Further, CIH induced significant spatial memory impairment in rats administered DHT. These results indicate androgens can have both neuroprotective and detrimental effects under CIH, which may have clinical relevance for men with untreated sleep apnea.
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Affiliation(s)
- Brina Snyder
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States of America
| | - Phong Duong
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States of America
| | - Jenny Trieu
- Texas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, TX, United States of America
| | - Rebecca L Cunningham
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States of America.
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29
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Ma B, Yang Y, Li Z, Zhao D, Zhang W, Jiang Y, Xue D. Modular bioinformatics analysis demonstrates that a Toll‑like receptor signaling pathway is involved in the regulation of macrophage polarization. Mol Med Rep 2018; 18:4313-4320. [PMID: 30221738 PMCID: PMC6172368 DOI: 10.3892/mmr.2018.9486] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 08/24/2018] [Indexed: 12/23/2022] Open
Abstract
In recent years, an increasing number of studies on the roles of macrophages in tumors, immune responses and metabolism have been published, in which macrophage polarization has been an extensively discussed topic. In the present study, differentially expressed genes in various types of macrophages were analyzed using the Gene Expression Omnibus database. Cluster analysis of differentially expressed genes was conducted, and a protein-protein interaction (PPI) network was constructed. Finally, modular analysis and functional enrichment analysis revealed that a Toll-like receptor (TLR) signaling pathway is involved in the regulation of macrophage polarization. Furthermore, the high-degree proteins in the PPI network that are involved in the molecular regulation of macrophage polarization are closely associated with proteins of the TLR signaling pathway. These results suggested that the TLR signaling pathways may be a principal direction of future research on the regulation of macrophage polarization.
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Affiliation(s)
- Biao Ma
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yang Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Zhituo Li
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Dali Zhao
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Weihui Zhang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yanfeng Jiang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Dongbo Xue
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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30
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Asada Y, Yamashita A, Sato Y, Hatakeyama K. Thrombus Formation and Propagation in the Onset of Cardiovascular Events. J Atheroscler Thromb 2018; 25:653-664. [PMID: 29887539 PMCID: PMC6099067 DOI: 10.5551/jat.rv17022] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Ischemic cardiovascular disease is a major cause of morbidity and mortality worldwide and thrombus formation on disrupted atherosclerotic plaques is considered to trigger its onset. Although the activation of platelets and coagulation pathways has been investigated intensively, the mechanisms of thrombus formation on disrupted plaques have not been understood in detail. Platelets are thought to play a central role in the formation of arterial thrombus because of rapid flow conditions; however, thrombus that develops on disrupted plaques consistently includes large amounts of fibrin in addition to aggregated platelets. While, thrombus does not always become large enough to completely occlude the vascular lumen, indicating that the propagation of thrombus is also critical for the onset of cardiovascular events. Various factors, such as vascular wall thrombogenicity, altered blood flow and imbalanced blood hemostasis, modulate thrombus formation and propagation on disrupted plaques. Pathological findings derived from humans and experimental animal models of atherothrombosis have identified important factors that affect thrombus formation and propagation, namely platelets, extrinsic and intrinsic coagulation factors, proinflammatory factors, plaque hypoxia and blood flow alteration. These findings might provide insight into the mechanisms of thrombus formation and propagation on disrupted plaques that lead to the onset of cardiovascular events.
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Affiliation(s)
- Yujiro Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki
| | - Atsushi Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki
| | - Yuichiro Sato
- Department of Diagnostic Pathology, University of Miyazaki Hospital, University of Miyazaki
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31
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Kimura S, Noguchi H, Nanbu U, Wang KY, Sasaguri Y, Nakayama T. Relationship between CCL22 Expression by Vascular Smooth Muscle Cells and Macrophage Histamine Receptors in Atherosclerosis. J Atheroscler Thromb 2018; 25:1240-1254. [PMID: 29794410 PMCID: PMC6249366 DOI: 10.5551/jat.44297] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM CCL22, mainly synthesized by monocyte-derived alternative (M2) macrophages, belongs to the CC family of chemokines and is involved in monocyte migration and recruitment. We have previously investigated CCL22 and histamine in atherosclerosis. Here, we investigated the hypothesis that CCL22 is involved in atherosclerosis, which is influenced by the differentiation of macrophage phenotypes via histamine. METHODS CCL22 expression was investigated in human carotid arteries and coronary arteries with bare metal stents. Ligated carotid arteries of wild-type (C57BL/6J) and apolipoprotein E-deficient mice were also used as atherosclerotic models. The localization and expression of CCL22 and classical (M1)-like and M2-like macrophages in various human and mouse atherosclerotic lesions were investigated by immunohistochemical examination and quantitative real-time polymerase chain reaction. Histamine is expressed in atherosclerosis, and it induces inflammation and immunity. Human- and mice-derived monocytes and macrophages were used to examine the role of histamine in macrophage differentiation and CCL22-expression. Macrophages derived from histamine receptor 1 (H1R)- and 2 (H2R)-knockout (KO) mice were also examined. RESULTS Atherosclerotic lesions showed a distribution of heterogeneous macrophage phenotypes with M1-like and M2-like macrophage dominant sites. CCL22 was distributed in sparse areas of vascular smooth muscle cells (VSMCs) and associated with M2-like macrophages. Moreover, H2R stimulation was associated with CCL22 expression via M2-like macrophage dominant differentiation. CONCLUSION The expression of M1- or M2-like macrophages in atherosclerosis were observed to be dependent on the distribution of VSMCs owing to differences in causal stimuli and the switching of histamine receptors via Th1 or Th2 cytokines. These results suggest that CCL22 may control atherosclerosis.
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Affiliation(s)
- Satoshi Kimura
- Department of Pathology, School of Medicine, University of Occupational and Environmental Health
| | - Hirotsugu Noguchi
- Department of Pathology, School of Medicine, University of Occupational and Environmental Health
| | - Uki Nanbu
- Department of Pathology, School of Medicine, University of Occupational and Environmental Health
| | - Ke-Yong Wang
- Shared-Use Research Center, University of Occupational and Environmental Health
| | - Yasuyuki Sasaguri
- Department of Pathology, School of Medicine, University of Occupational and Environmental Health
| | - Toshiyuki Nakayama
- Department of Pathology, School of Medicine, University of Occupational and Environmental Health
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32
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Snyder B, Shell B, Cunningham JT, Cunningham RL. Chronic intermittent hypoxia induces oxidative stress and inflammation in brain regions associated with early-stage neurodegeneration. Physiol Rep 2018; 5:5/9/e13258. [PMID: 28473320 PMCID: PMC5430123 DOI: 10.14814/phy2.13258] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 03/23/2017] [Indexed: 01/18/2023] Open
Abstract
Sleep apnea is a common comorbidity of neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD). Previous studies have shown an association between elevated oxidative stress and inflammation with severe sleep apnea. Elevated oxidative stress and inflammation are also hallmarks of neurodegenerative diseases. We show increased oxidative stress and inflammation in a manner consistent with early stages of neurodegenerative disease in an animal model of mild sleep apnea. Male rats were exposed to 7 days chronic intermittent hypoxia (CIH) for 8 h/day during the light period. Following CIH, plasma was collected and tested for circulating oxidative stress and inflammatory markers associated with proinflammatory M1 or anti-inflammatory M2 profiles. Tissue punches from brain regions associated with different stages of neurodegenerative diseases (early stage: substantia nigra and entorhinal cortex; intermediate: hippocampus; late stage: rostral ventrolateral medulla and solitary tract nucleus) were also assayed for inflammatory markers. A subset of the samples was examined for 8-hydroxydeoxyguanosine (8-OHdG) expression, a marker of oxidative stress-induced DNA damage. Our results showed increased circulating oxidative stress and inflammation. Furthermore, brain regions associated with early-stage (but not late-stage) AD and PD expressed oxidative stress and inflammatory profiles consistent with reported observations in preclinical neurodegenerative disease populations. These results suggest mild CIH induces key features that are characteristic of early-stage neurodegenerative diseases and may be an effective model to investigate mechanisms contributing to oxidative stress and inflammation in those brain regions.
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Affiliation(s)
- Brina Snyder
- Institute for Health Aging, University of North Texas Health Science Center, Fort Worth, Texas
| | - Brent Shell
- Institute for Cardiovascular and Metabolic Disease, University of North Texas Health Science Center, Fort Worth, Texas
| | - J Thomas Cunningham
- Institute for Cardiovascular and Metabolic Disease, University of North Texas Health Science Center, Fort Worth, Texas
| | - Rebecca L Cunningham
- Institute for Health Aging, University of North Texas Health Science Center, Fort Worth, Texas
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33
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Abstract
Plaque calcification develops by the inflammation-dependent mechanisms involved in progression and regression of atherosclerosis. Macrophages can undergo two distinct polarization states, that is, pro-inflammatory M1 phenotype in progression and anti-inflammatory M2 phenotype in regression. In plaque progression, predominant M1 macrophages promote the initial calcium deposition within the necrotic core of the lesions, called as microcalcification, through not only vesicle-mediated mineralization as the result of apoptosis of macrophages and vascular smooth muscle cells (VSMCs), but also VSMC differentiation into early phase osteoblasts. On the other hand, in plaque regression M2 macrophages are engaged in the healing response to plaque inflammation. In association with the resolution of chronic inflammation, M2 macrophages may facilitate macroscopic calcium deposition, called as macrocalcification, through induction of osteoblastic differentiation and maturation of VSMCs. Oncostatin M, which has been shown to promote osteoblast differentiation in bone, may play a pivotal role in the development of plaque calcification. Clinically, two types of plaque calcification have distinct implications. Macrocalcification leads to plaque stability, while microcalcification is more likely to be associated with plaque rupture. Statin therapy, which reduces cardiovascular mortality, has been shown to exert its dual actions on plaque morphology, that is, regression of atheroma and increment of macroscopic calcium deposits. Statins may facilitate the healing process against plaque inflammation by enhancing M2 polarization of macrophages. Vascular calcification has pleiotropic properties as pro-inflammatory “microcalcification” and anti-inflammatory “macrocalcification”. The molecular mechanisms of this process in relation with plaque progression as well as plaque regression should be intensively elucidated.
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Affiliation(s)
- Atsushi Shioi
- Department of Vascular Medicine, Osaka City University Graduate School of Medicine.,Vascular Science Center for Translational Research, Osaka City University Graduate School of Medicine
| | - Yuji Ikari
- Department of Cardiovascular Medicine, Tokai University School of Medicine
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34
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Nakagawa T, Ohnishi K, Kosaki Y, Saito Y, Horlad H, Fujiwara Y, Takeya M, Komohara Y. Optimum immunohistochemical procedures for analysis of macrophages in human and mouse formalin fixed paraffin-embedded tissue samples. J Clin Exp Hematop 2017; 57:31-36. [PMID: 28679964 DOI: 10.3960/jslrt.17017] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Macrophages are closely related to various diseases and it is therefore important that the properties of macrophages are adequately evaluated in human diseases and mouse disease models. Immunohistochemistry (IHC) of formalin fixed paraffin-embedded (FFPE) samples is a very useful tool for examination of macrophages; however, an adequate IHC protocol is required for the examination of macrophage states. In this study, we assessed various antigen retrieval methods in order to devise the optimal protocols for staining of macrophages with a range of antibodies. Optimum combinations of primary antibodies and antigen retrieval protocols were determined; for example, heat treatment with ethylenediamine tetraacetic acid solution, pH 8.0, was the best procedure for IHC using mouse anti-Iba1 and human anti-CD11b, -CD163, -CD169, -CD204, and -CD206 antibodies. Moreover, we found that the immunoreactivity of sliced tissue sections decreased gradually over time in long term storage but that this immunoreactivity was preserved in storage at -80 °C in a deep freezer. The optimal IHC protocols and storage procedures that were determined in this study should be a useful tool for macrophage research.
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Affiliation(s)
- Takenobu Nakagawa
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Koji Ohnishi
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Yui Kosaki
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Yoichi Saito
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Hasita Horlad
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Yukio Fujiwara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Motohiro Takeya
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Yoshihiro Komohara
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
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35
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Miyazaki T, Miyazaki A. Dysregulation of Calpain Proteolytic Systems Underlies Degenerative Vascular Disorders. J Atheroscler Thromb 2017; 25:1-15. [PMID: 28819082 PMCID: PMC5770219 DOI: 10.5551/jat.rv17008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Chronic vascular diseases such as atherosclerosis, aneurysms, diabetic angiopathy/retinopathy as well as fibrotic and proliferative vascular diseases are generally complicated by the progression of degenerative insults, which are characterized by endothelial dysfunction, apoptotic/necrotic cell death in vascular/immune cells, remodeling of extracellular matrix or breakdown of elastic lamella. Increasing evidence suggests that dysfunctional calpain proteolytic systems and defective calpain protein metabolism in blood vessels contribute to degenerative disorders. In vascular endothelial cells, the overactivation of conventional calpains consisting of calpain-1 and -2 isozymes can lead to the disorganization of cell-cell junctions, dysfunction of nitric oxide synthase, sensitization of Janus kinase/signal transducer and activator of transcription cascades and depletion of prostaglandin I2, which contributes to degenerative disorders. In addition to endothelial cell dysfunctions, calpain overactivation results in inflammatory insults in macrophages and excessive fibrogenic/proliferative signaling in vascular smooth muscle cells. Moreover, calpain-6, a non-proteolytic unconventional calpain, is involved in the conversion of macrophages to a pro-atherogenic phenotype, leading to the pinocytotic deposition of low-density lipoprotein cholesterol in the cells. Here, we discuss the recent progress that has been made in our understanding of how calpain contributes to degenerative vascular disorders.
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Affiliation(s)
- Takuro Miyazaki
- Department of Biochemistry, Showa University School of Medicine
| | - Akira Miyazaki
- Department of Biochemistry, Showa University School of Medicine
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36
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He S, Nelson ER. 27-Hydroxycholesterol, an endogenous selective estrogen receptor modulator. Maturitas 2017; 104:29-35. [PMID: 28923174 DOI: 10.1016/j.maturitas.2017.07.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 07/26/2017] [Accepted: 07/28/2017] [Indexed: 12/11/2022]
Abstract
Estrogen receptors (ERs) mediate the actions of the steroidal estrogens, and are important for the regulation of several physiological and pathophysiological processes, including reproduction, bone physiology, cardiovascular physiology and breast cancer. The unique pharmacology of the ERs allows for certain ligands, such as tamoxifen, to elicit tissue- and context-specific responses, ligands now referred to as selective estrogen receptor modulators (SERMs). Recently, the cholesterol metabolite 27-hydroxychoelsterol (27HC) has been defined as an endogenous SERM, with activities in atherosclerosis, osteoporosis, breast and prostate cancers, and neural degenerative diseases. Since 27HC concentrations closely mirror those of cholesterol, it is possible that 27HC mediates many of the biological effects of cholesterol. This paper provides an overview of ER pharmacology and summarizes the work to date implicating 27HC in various diseases. Wherever possible, we highlight clinical data in support of a role for 27HC in the diseases discussed.
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Affiliation(s)
- Sisi He
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Erik R Nelson
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA; University of Illinois Cancer Center, Chicago, IL, USA; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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37
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Abe H, Semba H, Takeda N. The Roles of Hypoxia Signaling in the Pathogenesis of Cardiovascular Diseases. J Atheroscler Thromb 2017; 24:884-894. [PMID: 28757538 PMCID: PMC5587513 DOI: 10.5551/jat.rv17009] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The circulatory system distributes blood flow to each tissue and transports oxygen and nutrients. Peripheral circulation is required to maintain the physiological function in each tissue. Disturbance of circulation, therefore, decreases oxygen delivery, leading to tissue hypoxia which takes place in several cardiovascular disorders including atherosclerosis, pulmonary arterial hypertension and heart failure. While tissue hypoxia can be induced because of cardiovascular disorders, hypoxia signaling itself has a potential to modulate tissue remodeling processes or the severity of the cardiovascular disorders. Hypoxia inducible factor-1α (HIF-1α) and HIF-2α belongs to a group of transcription factors which mediate most of the cellular responses to hypoxia at a transcriptional level. We, and others, have reported that HIF-α signaling plays a critical role in the initiation or the regulation of inflammation. HIF-α signaling contributes to the tissue remodeling processes; thus it has a potential to become a therapeutic target. Elucidation of the molecular link, therefore, between hypoxia signaling and tissue remodeling will greatly help us to understand the pathophysiology of the cardiovascular disorders. The purpose of this review is to give a brief overview of the current understanding about the function HIF-α in inflammation processes especially by focusing on its roles in macrophages. In addition, the pathophysiological roles of hypoxia signaling for the development of cardiovascular disease will be discussed.
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Affiliation(s)
- Hajime Abe
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Hiroaki Semba
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo.,Department of Cardiovascular Medicine, The Cardiovascular Institute
| | - Norihiko Takeda
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
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38
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Abstract
Inflammation with macrophage infiltration is a key feature of atherosclerosis. Although the mechanisms had been unclear, emerging evidence unveiled that NLRP3 inflammasomes, which regulate caspase-1 activation and subsequent processing of pro-IL-1β, trigger vascular wall inflammatory responses and lead to progression of atherosclerosis. NLRP3 inflammasomes are activated by various danger signals, such as cholesterol crystals, calcium phosphate crystals, and oxidized low-density lipoprotein in macrophages, to initiate inflammatory responses in the atherosclerotic lesion. Recent studies have further clarified the regulatory mechanisms and the potential therapeutic agents that target NLRP3 inflammasomes. In this study, we reviewed the present state of knowledge on the role of NLRP3 inflammasomes in the pathogenesis of atherosclerosis and discussed the therapeutic approaches that target NLRP3 inflammasomes.
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Affiliation(s)
- Tadayoshi Karasawa
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University
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Assessment of the Number and Phenotype of Macrophages in the Human BMB Samples of CML. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8086398. [PMID: 27999815 PMCID: PMC5143699 DOI: 10.1155/2016/8086398] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 10/24/2016] [Accepted: 11/03/2016] [Indexed: 01/31/2023]
Abstract
Macrophages have emerged as a key player in tumor biology. However, their number and phenotype in human bone marrow of biopsy (BMB) samples of chronic myeloid leukemia (CML) and their association with disease progression from an initial chronic phase (CP) to accelerated phase (AP) to advanced blast phase (BP) are still unclear. BMB samples from 127 CML patients and 30 patients with iron-deficiency anemia (IDA) as control group were analyzed by immunohistochemistry. The expression levels of CD68, CD163, and CD206 in BMB samples of CML patients were significantly higher than those in the patients of control group (P < 0.01), and we observed that their positive expression was gradually elevated during the transformation of CML-CP to AP to BP (P < 0.01). However, the expressions of CD68, CD163, and CD206 in released group were downregulated and contrasted to these in control group; there exists statistical significance (P < 0.01). The percentage ratio of CD163 and CD206 to CD68 was pronounced to be increasing from CML-CP to AP to BP (P < 0.01). Hence, the higher proportion of CD68+, CD163+ and CD206+ macrophages in BMB samples can be considered a key factor for disease progression of CML patients. Targeting macrophages, especially the M2 phenotype may help in designing therapeutic strategies for CML.
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Nakajima S, Koh V, Kua LF, So J, Davide L, Lim KS, Petersen SH, Yong WP, Shabbir A, Kono K. Accumulation of CD11c+CD163+ Adipose Tissue Macrophages through Upregulation of Intracellular 11β-HSD1 in Human Obesity. THE JOURNAL OF IMMUNOLOGY 2016; 197:3735-3745. [PMID: 27698011 DOI: 10.4049/jimmunol.1600895] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/01/2016] [Indexed: 12/31/2022]
Abstract
Adipose tissue (AT) macrophages (ATMs) are key players for regulation of AT homeostasis and obesity-related metabolic disorders. However, the phenotypes of human ATMs and regulatory mechanisms of their polarization have not been clearly described. In this study, we investigated human ATMs in both abdominal visceral AT and s.c. AT and proposed an 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1)-glucocorticoid receptor regulatory axis that might dictate M1/M2 polarization in ATMs. The accumulation of CD11c+CD163+ ATMs in both visceral AT and s.c. AT of obese individuals was confirmed at the cellular level and was found to be clearly correlated with body mass index and production of reactive oxygen species. Using our in vitro system where human peripheral blood monocytes (hPBMs) were cocultured with Simpson-Golabi-Behmel syndrome adipocytes, M1/M2 polarization was found to be dependent on 11β-HSD1, an intracellular glucocorticoid reactivating enzyme. Exposure of hPBMs to cortisol-induced expression of CD163 and RU-486, a glucocorticoid receptor antagonist, significantly abrogated CD163 expression through coculture of mature adipocytes with hPBMs. Moreover, 11β-HSD1 was expressed in crown ATMs in obese AT. Importantly, conditioned medium from coculture of adipocytes with hPBMs enhanced proliferation of human breast cancer MCF7 and MDA-MB-231 cells. In summary, the phenotypic switch of ATMs from M2 to mixed M1/M2 phenotype occurred through differentiation of adipocytes in obese individuals, and upregulation of intracellular 11β-HSD1 might play a role in the process.
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Affiliation(s)
- Shotaro Nakajima
- Center for Translational Medicine, Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599
| | - Vivien Koh
- Department of Hematology-Oncology, National University of Singapore, Singapore 119228
| | - Ley-Fang Kua
- Department of Hematology-Oncology, National University of Singapore, Singapore 119228
| | - Jimmy So
- Department of Surgery, National University of Singapore, Singapore 119228
| | - Lomanto Davide
- Department of Surgery, National University of Singapore, Singapore 119228
| | - Kee Siang Lim
- Center for Translational Medicine, Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599
| | - Sven Hans Petersen
- Center for Translational Medicine, Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599
| | - Wei-Peng Yong
- Center for Translational Medicine, Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599.,Department of Hematology-Oncology, National University of Singapore, Singapore 119228
| | - Asim Shabbir
- Department of Surgery, National University of Singapore, Singapore 119228
| | - Koji Kono
- Center for Translational Medicine, Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599; .,Department of Surgery, National University of Singapore, Singapore 119228.,Department of Organ Regulatory Surgery, Fukushima Medical University, Fukushima 960-1295, Japan; and.,Department of Advanced Cancer Immunotherapy, Fukushima Medical University, Fukushima 960-1295, Japan
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41
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Koga JI, Matoba T, Egashira K. Anti-inflammatory Nanoparticle for Prevention of Atherosclerotic Vascular Diseases. J Atheroscler Thromb 2016; 23:757-65. [PMID: 27108537 DOI: 10.5551/jat.35113] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Recent technical innovation has enabled chemical modifications of small materials and various kinds of nanoparticles have been created. In clinical settings, nanoparticle-mediated drug delivery systems have been used in the field of cancer care to deliver therapeutic agents specifically to cancer tissues and to enhance the efficacy of drugs by gradually releasing their contents. In addition, nanotechnology has enabled the visualization of various molecular processes by targeting proteinases or inflammation. Nanoparticles that consist of poly (lactic-co-glycolic) acid (PLGA) deliver therapeutic agents to monocytes/macrophages and function as anti-inflammatory nanoparticles in combination with statins, angiotensin receptor antagonists, or agonists of peroxisome proliferator-activated receptor-γ (PPARγ). PLGA nanoparticle-mediated delivery of pitavastatin has been shown to prevent inflammation and ameliorated features associated with plaque ruptures in hyperlipidemic mice. PLGA nanoparticles were also delivered to tissues with increased vascular permeability and nanoparticles incorporating pitavastatin, injected intramuscularly, were retained in ischemic tissues and induced therapeutic arteriogenesis. This resulted in attenuation of hind limb ischemia. Ex vivo treatment of vein grafts with imatinib nanoparticles before graft implantation has been demonstrated to inhibit lesion development. These results suggest that nanoparticle-mediated drug delivery system can be a promising strategy as a next generation therapy for atherosclerotic vascular diseases.
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Affiliation(s)
- Jun-Ichiro Koga
- The Department of Cardiovascular Research, Development, and Translational Medicine, Center for Disruptive Cardiovascular Medicine, Kyushu University
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42
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Abstract
Obesity, particularly excess visceral fat accumulation, is highly associated with the development of metabolic syndrome and atherosclerotic cardiovascular disease. Adipose tissue produces a variety of secreted proteins, referred to as adipocytokines, which directly affect nearby or remote organs. Dysregulation of adipocytokines caused by obese conditions contributes to the pathogenesis of various metabolic and cardiovascular disorders. This review focuses on the significance of several adipocytokines that potentially exert beneficial actions on obesity-related diseases, including atherosclerosis and ischemic heart disease.
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Affiliation(s)
- Noriyuki Ouchi
- Molecular Cardiovascular Medicine, Nagoya University Graduate School of Medicine
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43
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Tanaka M, Masuda S, Matsuo Y, Sasaki Y, Yamakage H, Muranaka K, Wada H, Hasegawa K, Tsukahara T, Shimatsu A, Satoh-Asahara N. Hyperglycemia and Inflammatory Property of Circulating Monocytes are Associated with Inflammatory Property of Carotid Plaques in Patients Undergoing Carotid Endarterectomy. J Atheroscler Thromb 2016; 23:1212-1221. [PMID: 27001002 PMCID: PMC5098921 DOI: 10.5551/jat.32680] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Aim: This study aims to determine the association between glucose metabolism and proinflammatory/anti-inflammatory properties of circulating monocytes or those of carotid plaques in patients who underwent carotid endarterectomy. Methods: Clinical characteristics and expression levels of proinflammatory/anti-inflammatory markers in circulating monocytes/carotid plaques were examined in 12 patients with diabetes and 12 patients without diabetes. Results: Circulating monocytes from patients with diabetes revealed higher tumor necrosis factor (TNF)-α and lower interleukin (IL)-10 expression levels compared with those from patients without diabetes, which was also observed in carotid plaques from patients with diabetes. Hyperglycemia revealed positive and negative correlations with the ratios of IL-6+ and IL-10+ cells in carotid plaques, respectively. Moreover, we determined a positive correlation between circulating monocytes and carotid plaques with respect to TNF-α and IL-6 expressions. Conclusions: The inflammatory property of circulating monocytes was associated with that of carotid plaques. Hyperglycemia increased inflammatory properties and decreased anti-inflammatory properties of carotid plaques.
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Affiliation(s)
- Masashi Tanaka
- Division of Diabetic Research, Clinical Research Institute, National Hospital Organization Kyoto Medical Center
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