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Malhi NK, Luo Y, Tang X, Chadha RS, Tapia A, Liu X, Chen M, Yuan D, Qi M, Wei L, Cooke JP, Natarajan R, Southerland KW, Chen ZB. Mapping Endothelial-Macrophage Interactions in Diabetic Vasculature: Role of TREM2 in Vascular Inflammation and Ischemic Response. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.14.594235. [PMID: 38798611 PMCID: PMC11118321 DOI: 10.1101/2024.05.14.594235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Vasculopathies occur 15 years earlier in individuals with diabetes mellitus (DM) as compared to those without, but the underlying mechanisms driving diabetic vasculopathy remain incompletely understood. Endothelial cells (ECs) and macrophages (MΦ) are critical players in vascular wall and their crosstalk is crucial in diabetic vasculopathy. In diabetes, EC activation enables monocyte recruitment, which transmigrate into the intima and differentiate into macrophages (MΦ). Beyond this established model of diapedesis, EC-MΦ interplay is highly intricate and heterogenous. To capture these highly context dependent EC-MΦ interactions, we leveraged single-cell (sc)RNA-seq in conjunction with spatial transcriptome (ST)-seq profiling to analyze human mesenteric arteries from non-diabetic (ND) and type 2 diabetic (T2D) donors. We provide in this study a transcriptomic map encompassing major arterial vascular cells, e.g., EC, mononuclear phagocyte (MP), and T cells, and their interactions associated with human T2D. Furthermore, we identified Triggering Receptor Expressed on Myeloid Cells 2 ( TREM2) as a top T2D-induced gene in MP, with concomitant increase of TREM2 ligands in ECs. TREM2 induction was confirmed in mouse models of T2D and monocyte/MΦ subjected to DM-mimicking stimuli. Perturbing TREM2 with either an antibody or silencing RNA in MPs led to decreased pro-inflammatory responses in MPs and ECs and increased EC migration in vitro . In a mouse model of diabetes, TREM2 expression and its interaction with ECs are increased in the ischemic, as compared to non-ischemic muscles. Importantly, neutralization of TREM2 using a neutralizing antibody enhanced ischemic recovery and flow reperfusion in the diabetic mice, suggesting a role of TREM2 in promoting diabetic PAD. Finally, we verified that both TREM2 expression and the TREM2-EC-interaction are increased in human patients with DM-PAD. Collectively, our study presents the first atlas of human diabetic vessels with a focus on EC-MP interactions. Exemplified by TREM2, our study provides valuable insights into EC-MΦ interactions, key processes contributing to diabetic vasculopathies and the potential of targeting these interactions for therapeutic development.
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Innuan P, Sirikul C, Anukul N, Rolin G, Dechsupa N, Kantapan J. Identifying transcriptomic profiles of iron-quercetin complex treated peripheral blood mononuclear cells from healthy volunteers and diabetic patients. Sci Rep 2024; 14:9441. [PMID: 38658734 PMCID: PMC11043337 DOI: 10.1038/s41598-024-60197-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 04/19/2024] [Indexed: 04/26/2024] Open
Abstract
Peripheral blood is an alternative source of stem/progenitor cells for regenerative medicine owing to its ease of retrieval and blood bank storage. Previous in vitro studies indicated that the conditioned medium derived from peripheral blood mononuclear cells (PBMCs) treated with the iron-quercetin complex (IronQ) contains potent angiogenesis and wound-healing properties. This study aims to unveil the intricate regulatory mechanisms governing the effects of IronQ on the transcriptome profiles of human PBMCs from healthy volunteers and those with diabetes mellitus (DM) using RNA sequencing analysis. Our findings revealed 3741 and 2204 differentially expressed genes (DEGs) when treating healthy and DM PBMCs with IronQ, respectively. Functional enrichment analyses underscored the biological processes shared by the DEGs in both conditions, including inflammatory responses, cell migration, cellular stress responses, and angiogenesis. A comprehensive exploration of these molecular alterations exposed a network of 20 hub genes essential in response to stimuli, cell migration, immune processes, and the mitogen-activated protein kinase (MAPK) pathway. The activation of these pathways enabled PBMCs to potentiate angiogenesis and tissue repair. Corroborating this, quantitative real-time polymerase chain reaction (qRT-PCR) and cell phenotyping confirmed the upregulation of candidate genes associated with anti-inflammatory, pro-angiogenesis, and tissue repair processes in IronQ-treated PBMCs. In summary, combining IronQ and PBMCs brings about substantial shifts in gene expression profiles and activates pathways that are crucial for tissue repair and immune response, which is promising for the enhancement of the therapeutic potential of PBMCs, especially in diabetic wound healing.
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Affiliation(s)
- Phattarawadee Innuan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chonticha Sirikul
- Division of Transfusion Science, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nampeung Anukul
- Division of Transfusion Science, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Gwenaël Rolin
- INSERM CIC-1431, CHU Besançon, 25000, Besançon, France
| | - Nathupakorn Dechsupa
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Jiraporn Kantapan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.
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3
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Hamo CE, Schlamp F, Drenkova K, Jindal M, Fadzan M, Akinlonu A, Goldberg I, Garshick MS, Berger JS. Burden of cardiometabolic risk factors and vascular health. Am Heart J 2024; 269:201-204. [PMID: 38199832 PMCID: PMC10922119 DOI: 10.1016/j.ahj.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/25/2023] [Accepted: 11/04/2023] [Indexed: 01/12/2024]
Abstract
BACKGROUND Cardiometabolic risk factors diabetes, obesity, and hypertension are highly prevalent and contribute to increased cardiovascular disease (CVD). Endothelial dysfunction precedes CVD development. The current study aimed to investigate the EC transcriptome among individuals with varying degree of cardiometabolic risk. METHODS Adult participants without CVD and various degrees of cardiometabolic risk factor burden (hypertension, diabetes, obesity) were included. Participants underwent brachial vein EC harvesting followed by RNA sequencing. To evaluate the association between cardiometabolic comorbidity burden and outcome transcripts we performed linear regression with multivariable models, adjusting for age, sex, and race/ethnicity. RESULTS A total of 18 individuals were included in the present analysis (mean age 47 ± 14, 44% female, and 61% White adults). Endothelial cell RNA sequencing revealed 588 differentially expressed transcripts (p-adj <0.05) with excellent discrimination in unsupervised hierarchical clustering analysis. Gene ontology enrichment analysis revealed upregulated pathways associated with T-cell activation (NES = 2.22, p<0.001), leukocyte differentiation (NES= 2.16, p<0.001), leukocyte migration (NES= 2.12, p<0.001), regulation of cell-cell adhesion (NES= 1.91, p=0.006). Downregulated pathways of interest included endothelial cell proliferation (NES= -1.68, p=0.03) and response to interleukin-1 (NES= -1.61, p=0.04). Upregulated genes included VCAM1, CEACAM1, ADAM 17, and CD99L2, all with a log-2-fold change >3 and p-adj <0.05. These genes demonstrated a graded increase in mean normalized counts with increasing number of risk factors. CONCLUSIONS We demonstrate a proinflammatory and pro-adhesive EC transcriptome associated with increased cardiometabolic risk factor burden offering insight into a potential mechanism linking these risk factors with the development of CVD.
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Affiliation(s)
- Carine E Hamo
- Department of Medicine, Center for the Prevention of Cardiovascular Disease, New York University School of Medicine, New York City, NY; Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY.
| | - Florencia Schlamp
- Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
| | - Kamelia Drenkova
- Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
| | - Manila Jindal
- Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
| | - Maja Fadzan
- Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
| | - Adedoyin Akinlonu
- Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
| | - Ira Goldberg
- Department of Medicine, Center for the Prevention of Cardiovascular Disease, New York University School of Medicine, New York City, NY; Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
| | - Michael S Garshick
- Department of Medicine, Center for the Prevention of Cardiovascular Disease, New York University School of Medicine, New York City, NY; Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
| | - Jeffrey S Berger
- Department of Medicine, Center for the Prevention of Cardiovascular Disease, New York University School of Medicine, New York City, NY; Leon H. Charney Division of Cardiology, Department of Medicine, Cardiovascular Research Center, New York University School of Medicine, New York City, NY
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Du H, Li S, Lu J, Tang L, Jiang X, He X, Liang J, Liao X, Cui T, Huang Y, Liu H. Single-cell RNA-seq and bulk-seq identify RAB17 as a potential regulator of angiogenesis by human dermal microvascular endothelial cells in diabetic foot ulcers. BURNS & TRAUMA 2023; 11:tkad020. [PMID: 37605780 PMCID: PMC10440157 DOI: 10.1093/burnst/tkad020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/10/2023] [Accepted: 03/22/2023] [Indexed: 08/23/2023]
Abstract
Background Angiogenesis is crucial in diabetic wound healing and is often impaired in diabetic foot ulcers (DFUs). Human dermal microvascular endothelial cells (HDMECs) are vital components in dermal angiogenesis; however, their functional and transcriptomic characteristics in DFU patients are not well understood. This study aimed to comprehensively analyse HDMECs from DFU patients and healthy controls and find the potential regulator of angiogenesis in DFUs. Methods HDMECs were isolated from skin specimens of DFU patients and healthy controls via magnetic-activated cell sorting. The proliferation, migration and tube-formation abilities of the cells were then compared between the experimental groups. Both bulk RNA sequencing (bulk-seq) and single-cell RNA-seq (scRNA-seq) were used to identify RAB17 as a potential marker of angiogenesis, which was further confirmed via weighted gene co-expression network analysis (WGCNA) and least absolute shrink and selection operator (LASSO) regression. The role of RAB17 in angiogenesis was examined through in vitro and in vivo experiments. Results The isolated HDMECs displayed typical markers of endothelial cells. HDMECs isolated from DFU patients showed considerably impaired tube formation, rather than proliferation or migration, compared to those from healthy controls. Gene set enrichment analysis (GSEA), fGSEA, and gene set variation analysis (GSVA) of bulk-seq and scRNA-seq indicated that angiogenesis was downregulated in DFU-HDMECs. LASSO regression identified two genes, RAB17 and CD200, as characteristic of DFU-HDMECs; additionally, the expression of RAB17 was found to be significantly reduced in DFU-HDMECs compared to that in the HDMECs of healthy controls. Overexpression of RAB17 was found to enhance angiogenesis, the expression of hypoxia inducible factor-1α and vascular endothelial growth factor A, and diabetic wound healing, partially through the mitogen-activated protein kinase/extracellular signal-regulated kinase signalling pathway. Conclusions Our findings suggest that the impaired angiogenic capacity in DFUs may be related to the dysregulated expression of RAB17 in HDMECs. The identification of RAB17 as a potential molecular target provides a potential avenue for the treatment of impaired angiogenesis in DFUs.
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Affiliation(s)
- Hengyu Du
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Shenghong Li
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Jinqiang Lu
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Lingzhi Tang
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Xiao Jiang
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Xi He
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Jiaji Liang
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Xuan Liao
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
| | - Taixing Cui
- Dalton Cardiovascular Research Center, Department of Medical Pharmacology and Physiology, University of Missouri, School of Medicine, 134 Research Park Dr, Columbia, MO 65211, USA
| | - Yuesheng Huang
- Institute of Wound Repair and Regeneration Medicine, Southern University of Science and Technology School of Medicine, and Department of Wound Repair, Southern University of Science and Technology Hospital, Shenzhen, Guangdong, 518055, China
| | - Hongwei Liu
- Department of Plastic Surgery of the First Affiliated Hospital of Jinan University, Institute of New Technology of Plastic Surgery of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education, Guangzhou 510630, P.R. China
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Bayaraa O, Inman CK, Thomas SA, Al Jallaf F, Alshaikh M, Idaghdour Y, Ashall L. Hyperglycemic conditions induce rapid cell dysfunction-promoting transcriptional alterations in human aortic endothelial cells. Sci Rep 2022; 12:20912. [PMID: 36463298 PMCID: PMC9719474 DOI: 10.1038/s41598-022-24999-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 11/23/2022] [Indexed: 12/07/2022] Open
Abstract
Hyperglycemia is a major risk factor in the development of diabetic complications and promotes vascular complications through dysregulation of endothelial cell function. Various mechanisms have been proposed for endothelial cell dysregulation but the early transcriptomic alterations of endothelial cells under hyperglycemic conditions are not well documented. Here we use deep time-series RNA-seq profiling of human aortic endothelial cells (HAECs) following exposure to normal (NG) and high glucose (HG) conditions over a time course from baseline to 24 h to identify the early and transient transcriptomic changes, alteration of molecular networks, and their temporal dynamics. The analysis revealed that the most significant pathway activation/inhibition events take place in the 1- to 4-h transition and identified distinct clusters of genes that underlie a cascade of coordinated transcriptional events unique to HG conditions. Temporal co-expression and causal network analysis implicate the activation of type 2 diabetes (T2D) and growth factor signalling pathways including STAT3 and NF-κB. These results document HAEC transcriptional changes induced by hyperglycemic conditions and provide basic insight into the rapid molecular alterations that promote endothelial cell dysfunction.
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Affiliation(s)
- Odmaa Bayaraa
- grid.440573.10000 0004 1755 5934Program in Biology, Division of Science and Mathematics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Claire K. Inman
- grid.440573.10000 0004 1755 5934Public Health Research Center, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Sneha A. Thomas
- grid.440573.10000 0004 1755 5934Public Health Research Center, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Fatima Al Jallaf
- grid.440573.10000 0004 1755 5934Program in Biology, Division of Science and Mathematics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Manar Alshaikh
- grid.440573.10000 0004 1755 5934Public Health Research Center, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Youssef Idaghdour
- grid.440573.10000 0004 1755 5934Public Health Research Center, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates ,grid.440573.10000 0004 1755 5934Program in Biology, Division of Science and Mathematics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Louise Ashall
- grid.440573.10000 0004 1755 5934Public Health Research Center, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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Overview of Transcriptomic Research on Type 2 Diabetes: Challenges and Perspectives. Genes (Basel) 2022; 13:genes13071176. [PMID: 35885959 PMCID: PMC9319211 DOI: 10.3390/genes13071176] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023] Open
Abstract
Type 2 diabetes (T2D) is a common chronic disease whose etiology is known to have a strong genetic component. Standard genetic approaches, although allowing for the detection of a number of gene variants associated with the disease as well as differentially expressed genes, cannot fully explain the hereditary factor in T2D. The explosive growth in the genomic sequencing technologies over the last decades provided an exceptional impetus for transcriptomic studies and new approaches to gene expression measurement, such as RNA-sequencing (RNA-seq) and single-cell technologies. The transcriptomic analysis has the potential to find new biomarkers to identify risk groups for developing T2D and its microvascular and macrovascular complications, which will significantly affect the strategies for early diagnosis, treatment, and preventing the development of complications. In this article, we focused on transcriptomic studies conducted using expression arrays, RNA-seq, and single-cell sequencing to highlight recent findings related to T2D and challenges associated with transcriptome experiments.
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7
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Exploring Endothelial Colony-Forming Cells to Better Understand the Pathophysiology of Disease: An Updated Review. Stem Cells Int 2022; 2022:4460041. [PMID: 35615696 PMCID: PMC9126670 DOI: 10.1155/2022/4460041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/20/2022] [Accepted: 05/09/2022] [Indexed: 12/12/2022] Open
Abstract
Endothelial cell (EC) dysfunction has been implicated in a variety of pathological conditions. The collection of ECs from patients is typically conducted postmortem or through invasive procedures, such as surgery and interventional procedures, hampering efforts to clarify the role of ECs in disease onset and progression. In contrast, endothelial colony-forming cells (ECFCs), also termed late endothelial progenitor cells, late outgrowth endothelial cells, blood outgrowth endothelial cells, or endothelial outgrowth cells, are obtained in a minimally invasive manner, namely, by the culture of human peripheral blood mononuclear cells in endothelial growth medium. ECFCs resemble mature ECs phenotypically, genetically, and functionally, making them excellent surrogates for ECs. Numerous studies have been performed that examined ECFC function in conditions such as coronary artery disease, diabetes mellitus, hereditary hemorrhagic telangiectasia, congenital bicuspid aortic valve disease, pulmonary arterial hypertension, venous thromboembolic disease, and von Willebrand disease. Here, we provide an updated review of studies using ECFCs that were performed to better understand the pathophysiology of disease. We also discuss the potential of ECFCs as disease biomarkers and the standardized methods to culture, quantify, and evaluate ECFCs and suggest the future direction of research in this field.
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8
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Abstract
Atherosclerotic cardiovascular disease (ASCVD) proceeds through a series of stages: initiation, progression (or regression), and complications. By integrating known biology regarding molecular signatures of each stage with recent advances in high-dimensional molecular data acquisition platforms (to assay the genome, epigenome, transcriptome, proteome, metabolome, and gut microbiome), snapshots of each phase of atherosclerotic cardiovascular disease development can be captured. In this review, we will summarize emerging approaches for assessment of atherosclerotic cardiovascular disease risk in humans using peripheral blood molecular signatures and molecular imaging approaches. We will then discuss the potential (and challenges) for these snapshots to be integrated into a personalized movie providing dynamic readouts of an individual's atherosclerotic cardiovascular disease risk status throughout the life course.
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Affiliation(s)
- Matthew Nayor
- Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Kemar J. Brown
- Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Ramachandran S. Vasan
- Sections of Preventive Medicine & Epidemiology, and Cardiology, Department of Medicine, Boston University School of Medicine, Boston, MA; Department of Epidemiology, Boston University School of Public Health; Boston University Center for Computing and Data Sciences
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9
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Jonsson A, Hedin A, Müller M, Skog O, Korsgren O. Transcriptional profiles of human islet and exocrine endothelial cells in subjects with or without impaired glucose metabolism. Sci Rep 2020; 10:22315. [PMID: 33339897 PMCID: PMC7749106 DOI: 10.1038/s41598-020-79313-y] [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: 09/23/2020] [Accepted: 12/04/2020] [Indexed: 11/21/2022] Open
Abstract
In experimental studies, pancreatic islet microvasculature is essential for islet endocrine function and mass, and islet vascular morphology is altered in diabetic subjects. Even so, almost no information is available concerning human islet microvascular endothelial cell (MVEC) physiology and gene expression. In this study, islets and exocrine pancreatic tissue were acquired from organ donors with normoglycemia or impaired glucose metabolism (IGM) immediately after islet isolation. Following single-cell dissociation, primary islet- and exocrine MVECs were obtained through fluorescence-activated cell sorting (FACS) and transcriptional profiles were generated using AmpliSeq. Multiple gene sets involved in general vascular development and extracellular matrix remodeling were enriched in islet MVEC. In exocrine MVEC samples, multiple enriched gene sets that relate to biosynthesis and biomolecule catabolism were found. No statistically significant enrichment was found in gene sets related to autophagy or endoplasmic reticulum (ER) stress. Although ample differences were found between islet- and exocrine tissue endothelial cells, no differences could be observed between normoglycemic donors and donors with IGM at gene or gene set level. Our data is consistent with active angiogenesis and vascular remodeling in human islets and support the notion of ongoing endocrine pancreas tissue repair and regeneration even in the adult human.
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Affiliation(s)
- Alexander Jonsson
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
| | - Anders Hedin
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Malin Müller
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Oskar Skog
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Olle Korsgren
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.,Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
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10
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Hu JR, Duncan MS, Morgans AK, Brown JD, Meijers WC, Freiberg MS, Salem JE, Beckman JA, Moslehi JJ. Cardiovascular Effects of Androgen Deprivation Therapy in Prostate Cancer: Contemporary Meta-Analyses. Arterioscler Thromb Vasc Biol 2020; 40:e55-e64. [PMID: 31969015 PMCID: PMC7047549 DOI: 10.1161/atvbaha.119.313046] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Androgen deprivation therapy is a cornerstone of prostate cancer treatment. Pharmacological androgen deprivation includes gonadotropin-releasing hormone agonism and antagonism, androgen receptor inhibition, and CYP17 (cytochrome P450 17A1) inhibition. Studies in the past decade have raised concerns about the potential for androgen deprivation therapy to increase the risk of adverse cardiovascular events such as myocardial infarction, stroke, and cardiovascular mortality, possibly by exacerbating cardiovascular risk factors. In this review, we summarize existing data on the cardiovascular effects of androgen deprivation therapy. Among the therapies, abiraterone stands out for increasing risk of cardiac events in meta-analyses of both randomized controlled trials and observational studies. We find a divergence between observational studies, which show consistent positive associations between androgen deprivation therapy use and cardiovascular disease, and randomized controlled trials, which do not show these associations reproducibly.
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Affiliation(s)
- Jiun-Ruey Hu
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Meredith S Duncan
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN.,Department of Epidemiology (M.S.D., M.S.F.), Vanderbilt University Medical Center, Nashville, TN
| | - Alicia K Morgans
- Division of Hematology/Oncology, Northwestern University Feinberg School of Medicine, Chicago, IL (A.K.M.)
| | - Jonathan D Brown
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Wouter C Meijers
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Matthew S Freiberg
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN.,Department of Epidemiology (M.S.D., M.S.F.), Vanderbilt University Medical Center, Nashville, TN.,Nashville Veteran Affairs (VA) Medical Center, TN (M.S.F.)
| | - Joe-Elie Salem
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN.,Department of Pharmacology, AP-HP, Pitié-Salpêtrière Hospital, CIC-1421, INSERM, Sorbonne Universités, UNICO-GRECO Cardio-Oncology Program, Paris, France (J.-E.S.)
| | - Joshua A Beckman
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Javid J Moslehi
- From the Division of Cardiovascular Medicine (J.-R.H., M.S.D., J.D.B., W.C.M., M.S.F., J.-E.S., J.A.B., J.J.M.), Vanderbilt University Medical Center, Nashville, TN
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