1
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Pirincci CS, Mete O, Yasa ME, Dalyan M. A comparative evaluation of the efficacy of complete decongestive therapy in the treatment of unilateral breast cancer-related lymphedema with and without metabolic syndrome. Support Care Cancer 2024; 32:473. [PMID: 38949715 PMCID: PMC11217042 DOI: 10.1007/s00520-024-08676-z] [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: 12/13/2023] [Accepted: 06/21/2024] [Indexed: 07/02/2024]
Abstract
AIM This study aimed to investigate the effect of the presence of metabolic syndrome (MetS) on the limb volume and quality of life (QoL) of patients who underwent complex decongestive therapy (CDT) due to unilateral breast cancer-related lymphedema (BCRL). METHODS Forty female patients with unilateral BCRL, of whom 20 had MetS (MetS group) and 20 did not have MetS (control group), were included in the study. The participants received CDT 5 days a week for 3 weeks. The participants' limb volume (percentage of excess volume (PEV) and percentage reduction of excess volume (PREV) was determined using a tape measure, and their QoL was assessed using the Lymphedema Quality of Life questionnaire (LYMQoL) before and after treatment. RESULTS After the treatment, the PEV and PREV values and LYMQoL-symptoms scores of the patients improved (p < 0.05); however, the LYMQoL-function, appearance/body image, mood/emotions, and overall QoL scores did not change in the MetS group (p > 0.05). In the control group, the PEV and PREV values and the LYMQoL-appearance/body image, mood/emotions, and overall QoL scores improved (p < 0.05), but the LYMQoL-symptoms and LYMQoL-function scores did not change (p > 0.05). There was a greater increase in the post-treatment PEV and PREV values of the control group compared to the MetS group (p < 0.001). CONCLUSION The study yielded that CDT was an effective treatment in BCRL with and without MetS; however, the improvement was greater in BCRL cases without MetS than in those with MetS. Therefore, the presence of MetS should be taken into account in the treatment of lymphedema in patients who develop BCRL. TRIAL REGISTRATION ClinicalTrials.gov, identifier: NCT05426993. Registered 2022-06-16. https://clinicaltrials.gov/search?cond=NCT05426993.
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Affiliation(s)
- Cansu Sahbaz Pirincci
- University of Health Sciences, Gulhane Faculty of Physiotherapy and Rehabilitation, Ankara, Türkiye
| | - Oguzhan Mete
- University of Health Sciences, Gulhane Faculty of Physiotherapy and Rehabilitation, Ankara, Türkiye.
| | - Mustafa Ertugrul Yasa
- University of Health Sciences, Gulhane Faculty of Physiotherapy and Rehabilitation, Ankara, Türkiye
| | - Meltem Dalyan
- Ankara City Hospital, Physical Medicine and Rehabilitation, Ankara, Türkiye
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2
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Lemche E, Killick R, Mitchell J, Caton PW, Choudhary P, Howard JK. Molecular mechanisms linking type 2 diabetes mellitus and late-onset Alzheimer's disease: A systematic review and qualitative meta-analysis. Neurobiol Dis 2024; 196:106485. [PMID: 38643861 DOI: 10.1016/j.nbd.2024.106485] [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] [Received: 06/30/2023] [Revised: 03/18/2024] [Accepted: 03/23/2024] [Indexed: 04/23/2024] Open
Abstract
Research evidence indicating common metabolic mechanisms through which type 2 diabetes mellitus (T2DM) increases risk of late-onset Alzheimer's dementia (LOAD) has accumulated over recent decades. The aim of this systematic review is to provide a comprehensive review of common mechanisms, which have hitherto been discussed in separate perspectives, and to assemble and evaluate candidate loci and epigenetic modifications contributing to polygenic risk linkages between T2DM and LOAD. For the systematic review on pathophysiological mechanisms, both human and animal studies up to December 2023 are included. For the qualitative meta-analysis of genomic bases, human association studies were examined; for epigenetic mechanisms, data from human studies and animal models were accepted. Papers describing pathophysiological studies were identified in databases, and further literature gathered from cited work. For genomic and epigenomic studies, literature mining was conducted by formalised search codes using Boolean operators in search engines, and augmented by GeneRif citations in Entrez Gene, and other sources (WikiGenes, etc.). For the systematic review of pathophysiological mechanisms, 923 publications were evaluated, and 138 gene loci extracted for testing candidate risk linkages. 3 57 publications were evaluated for genomic association and descriptions of epigenomic modifications. Overall accumulated results highlight insulin signalling, inflammation and inflammasome pathways, proteolysis, gluconeogenesis and glycolysis, glycosylation, lipoprotein metabolism and oxidation, cell cycle regulation or survival, autophagic-lysosomal pathways, and energy. Documented findings suggest interplay between brain insulin resistance, neuroinflammation, insult compensatory mechanisms, and peripheral metabolic dysregulation in T2DM and LOAD linkage. The results allow for more streamlined longitudinal studies of T2DM-LOAD risk linkages.
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Affiliation(s)
- Erwin Lemche
- Section of Cognitive Neuropsychiatry and Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, United Kingdom.
| | - Richard Killick
- Section of Old Age Psychiatry, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, United Kingdom
| | - Jackie Mitchell
- Department of Basic and Clinical Neurosciences, Maurice Wohl CIinical Neurosciences Institute, Institute of Psychiatry, Psychology & Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, United Kingdom
| | - Paul W Caton
- Diabetes Research Group, School of Life Course Sciences, King's College London, Hodgkin Building, Guy's Campus, London SE1 1UL, United Kingdom
| | - Pratik Choudhary
- Diabetes Research Group, Weston Education Centre, King's College London, 10 Cutcombe Road, London SE5 9RJ, United Kingdom
| | - Jane K Howard
- School of Cardiovascular and Metabolic Medicine & Sciences, Hodgkin Building, Guy's Campus, King's College London, Great Maze Pond, London SE1 1UL, United Kingdom
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3
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Zhou C, Sun T, Zhao J, Xu Y, Dong Z, Lu F, Li B. Lymphatic Vessel-Mediated Attenuation of Persistent Macrophage Infiltration Improves Fat Grafting Outcomes in Mice Models. Aesthet Surg J 2024:sjae110. [PMID: 38870037 DOI: 10.1093/asj/sjae110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024] Open
Abstract
BACKGROUND Persistent macrophage infiltration may lead to adverse consequences, such as calcifications and nodules in fat grafts. Lymphatic vessels, which transport inflammatory cells, are involved in regulating inflammatory responses. Less is known, however, about lymphatic vessels after fat grafting. OBJECTIVES The aim of this study was to explore the regulation of fat graft survival by lymphatic vessels. METHODS A common adipose graft model was constructed to assess the processes responsible for changes in the number of lymphatic vessels in grafts. Adipose tissue samples from C57/BL6 mice and green fluorescent protein-expressing mice were cross-grafted to determine the source of lymphatic vessels. The number of lymphatic vessels in the grafts was increased by treatment with vascular endothelial growth factor C, and the effects of this increase on fat grafting were evaluated. RESULTS The number of lymphatic vessels was greater in postgrafted fat than in inguinal fat before transplantation, with lymphatic vessels in these grafts gradually transitioning from donor to recipient sources. Lymphatic vessels grew more slowly than blood vessels during early stages of grafting; during later stages, however, the number of blood vessels declined markedly, with more lymphatic vessels than blood vessels being observed 60 days after grafting. Vascular endothelial growth factor C treatment increased graft lymphatics and distant volume retention, while reducing fibrosis and oil sacs. Lymphatic vessels acted as drainage channels for macrophages, with the degree of sustained macrophage infiltration decreasing with increases in the number of lymphatic vessels. CONCLUSIONS Increasing the number of lymphatic vessels is beneficial for fat graft survival, which may be related to a reduction in prolonged macrophage infiltration. LEVEL OF EVIDENCE: 4
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4
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Bai L, Wang Y, Du S, Si Y, Chen L, Li L, Li Y. Lymphangiogenesis: A new strategy for heart disease treatment (Review). Int J Mol Med 2024; 53:35. [PMID: 38391009 PMCID: PMC10903933 DOI: 10.3892/ijmm.2024.5359] [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] [Received: 11/14/2023] [Accepted: 01/19/2024] [Indexed: 02/24/2024] Open
Abstract
Heart disease remains a global health challenge, contributing notably to morbidity and mortality. The lymphatic vasculature, an integral component of the cardiovascular system, plays a crucial role in regulating essential physiological processes, including fluid balance, transportation of extravasated proteins and immune cell trafficking, all of which are important for heart function. Through thorough scientometric analysis and extensive research, the present review identified lymphangiogenesis as a hotspot in cardiovascular disease research, and the mechanisms underlying impaired cardiac lymphangiogenesis and inadequate lymph drainage in various cardiovascular diseases are discussed. Furthermore, the way used to improve lymphangiogenesis to effectively regulate a variety of heart diseases and associated signaling pathways was investigated. Notably, the current review also highlights the impact of Traditional Chinese Medicine (TCM) on lymphangiogenesis, aiming to establish a clinical basis for the potential of TCM to improve cardiovascular diseases by promoting lymphangiogenesis.
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Affiliation(s)
- Liding Bai
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin 301617, P.R. China
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Yanyan Wang
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin 301617, P.R. China
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Siqi Du
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin 301617, P.R. China
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Yumeng Si
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin 301617, P.R. China
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Lu Chen
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin 301617, P.R. China
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Lin Li
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin 301617, P.R. China
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
| | - Yuhong Li
- Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin 301617, P.R. China
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, P.R. China
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Ivanov KI, Samuilova OV, Zamyatnin AA. The emerging roles of long noncoding RNAs in lymphatic vascular development and disease. Cell Mol Life Sci 2023; 80:197. [PMID: 37407839 PMCID: PMC10322780 DOI: 10.1007/s00018-023-04842-4] [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: 11/08/2022] [Revised: 06/06/2023] [Accepted: 06/19/2023] [Indexed: 07/07/2023]
Abstract
Recent advances in RNA sequencing technologies helped uncover what was once uncharted territory in the human genome-the complex and versatile world of long noncoding RNAs (lncRNAs). Previously thought of as merely transcriptional "noise", lncRNAs have now emerged as essential regulators of gene expression networks controlling development, homeostasis and disease progression. The regulatory functions of lncRNAs are broad and diverse, and the underlying molecular mechanisms are highly variable, acting at the transcriptional, post-transcriptional, translational, and post-translational levels. In recent years, evidence has accumulated to support the important role of lncRNAs in the development and functioning of the lymphatic vasculature and associated pathological processes such as tumor-induced lymphangiogenesis and cancer metastasis. In this review, we summarize the current knowledge on the role of lncRNAs in regulating the key genes and pathways involved in lymphatic vascular development and disease. Furthermore, we discuss the potential of lncRNAs as novel therapeutic targets and outline possible strategies for the development of lncRNA-based therapeutics to treat diseases of the lymphatic system.
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Affiliation(s)
- Konstantin I Ivanov
- Research Center for Translational Medicine, Sirius University of Science and Technology, Sochi, Russian Federation.
- Department of Microbiology, University of Helsinki, Helsinki, Finland.
| | - Olga V Samuilova
- Department of Biochemistry, Sechenov First Moscow State Medical University, Moscow, Russian Federation
- HSE University, Moscow, Russian Federation
| | - Andrey A Zamyatnin
- Research Center for Translational Medicine, Sirius University of Science and Technology, Sochi, Russian Federation
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russian Federation
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russian Federation
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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6
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Mizzi S, Swaine I, Springett K. Is in-Shoe Microclimate a Neglected Contributor in the Pathway to Diabetic Foot Ulceration? INT J LOW EXTR WOUND 2022:15347346221112257. [PMID: 35791575 DOI: 10.1177/15347346221112257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The identification of the key contributing factors which predispose the foot to ulceration, increasing the risk of recurrence and slow wound healing in diabetes mellitus (DM), has led to some significant research studies over the last 30 years, providing valuable insight into the mechanism leading to diabetic foot ulceration (DFU). Although, these contributory factors are similar to those identified in pressure ulceration occurring in other parts of the body (such as "bed pressure sores') where magnitude and/or duration of mechanical stress in the presence of sensory deficits are key causal factors, research investigating pressure ulceration has also included measurement of temperature and relative humidity at the interface between the skin and supporting surface. The possible influence of these parameters (in-shoe temperature and humidity) does not appear frequently in diabetic foot ulceration research. Referred to as "microclimate", this has an important role in the pathway to tissue breakdown evidenced in pressure ulcer research and may be particularly relevant in countries with warm and humid climates. As the microclimate is influential in the ulceration pathway for other body sites, its role in the DFU causal pathway justifies further investigation.
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Affiliation(s)
- S Mizzi
- Faculty of Health Sciences, 37563University of Malta, Msida, Malta
| | - I Swaine
- Centre for Science and Medicine in Sport and Exercise, 4918University of Greenwich, London, UK
| | - K Springett
- School of Allied Health Professions, Faculty of Health and Wellbeing, 2238Canterbury Christ Church University, Canterbury, UK
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7
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Kemp SS, Penn MR, Koller GM, Griffin CT, Davis GE. Proinflammatory mediators, TNFα, IFNγ, and thrombin, directly induce lymphatic capillary tube regression. Front Cell Dev Biol 2022; 10:937982. [PMID: 35927983 PMCID: PMC9343954 DOI: 10.3389/fcell.2022.937982] [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] [Received: 05/06/2022] [Accepted: 06/30/2022] [Indexed: 11/30/2022] Open
Abstract
In this work, we sought to investigate the direct effects of proinflammatory mediators on lymphatic endothelial cell (LEC) capillaries and whether they might induce regression. Our laboratory has developed novel in-vitro, serum-free, lymphatic tubulogenesis assay models whereby human LEC tube networks readily form in either three-dimensional collagen or fibrin matrices. These systems were initially conceptualized in the hopes of better understanding the influence of proinflammatory mediators on LEC capillaries. In this work, we have screened and identified proinflammatory mediators that cause regression of LEC tube networks, the most potent of which is TNFα (tumor necrosis factor alpha), followed by IFNγ (interferon gamma) and thrombin. When these mediators were combined, even greater and more rapid lymphatic capillary regression occurred. Surprisingly, IL-1β (interleukin-1 beta), one of the most potent and pathologic cytokines known, had no regressive effect on these tube networks. Finally, we identified new pharmacological drug combinations capable of rescuing LEC capillaries from regression in response to the potent combination of TNFα, IFNγ, and thrombin. We speculate that protecting lymphatic capillaries from regression may be an important step toward mitigating a wide variety of acute and chronic disease states, as lymphatics are believed to clear both proinflammatory cells and mediators from inflamed and damaged tissue beds. Overall, these studies identify key proinflammatory mediators, including TNFα, IFNγ, and thrombin, that induce regression of LEC tube networks, as well as identify potential therapeutic agents to diminish LEC capillary regression responses.
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Affiliation(s)
- Scott S Kemp
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, FL, United States
| | - Marlena R Penn
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, FL, United States
| | - Gretchen M Koller
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, FL, United States
| | - Courtney T Griffin
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - George E Davis
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, FL, United States
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8
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Ravaud C, Ved N, Jackson DG, Vieira JM, Riley PR. Lymphatic Clearance of Immune Cells in Cardiovascular Disease. Cells 2021; 10:cells10102594. [PMID: 34685572 PMCID: PMC8533855 DOI: 10.3390/cells10102594] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/26/2021] [Accepted: 09/27/2021] [Indexed: 12/11/2022] Open
Abstract
Recent advances in our understanding of the lymphatic system, its function, development, and role in pathophysiology have changed our views on its importance. Historically thought to be solely involved in the transport of tissue fluid, lipids, and immune cells, the lymphatic system displays great heterogeneity and plasticity and is actively involved in immune cell regulation. Interference in any of these processes can be deleterious, both at the developmental and adult level. Preclinical studies into the cardiac lymphatic system have shown that invoking lymphangiogenesis and enhancing immune cell trafficking in ischaemic hearts can reduce myocardial oedema, reduce inflammation, and improve cardiac outcome. Understanding how immune cells and the lymphatic endothelium interact is also vital to understanding how the lymphatic vascular network can be manipulated to improve immune cell clearance. In this Review, we examine the different types of immune cells involved in fibrotic repair following myocardial infarction. We also discuss the development and function of the cardiac lymphatic vasculature and how some immune cells interact with the lymphatic endothelium in the heart. Finally, we establish how promoting lymphangiogenesis is now a prime therapeutic target for reducing immune cell persistence, inflammation, and oedema to restore heart function in ischaemic heart disease.
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Affiliation(s)
- Christophe Ravaud
- Burdon-Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, UK; (C.R.); (N.V.); (J.M.V.)
| | - Nikita Ved
- Burdon-Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, UK; (C.R.); (N.V.); (J.M.V.)
| | - David G. Jackson
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, UK;
| | - Joaquim Miguel Vieira
- Burdon-Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, UK; (C.R.); (N.V.); (J.M.V.)
| | - Paul R. Riley
- Burdon-Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, UK; (C.R.); (N.V.); (J.M.V.)
- Correspondence:
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9
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Decreased Lymphangiogenic Activities and Genes Expression of Cord Blood Lymphatic Endothelial Progenitor Cells (VEGFR3 +/Pod +/CD11b + Cells) in Patient with Preeclampsia. Int J Mol Sci 2021; 22:ijms22084237. [PMID: 33921847 PMCID: PMC8073258 DOI: 10.3390/ijms22084237] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 12/26/2022] Open
Abstract
The abnormal development or disruption of the lymphatic vasculature has been implicated in metabolic and hypertensive diseases. Recent evidence suggests that the offspring exposed to preeclampsia (PE) in utero are at higher risk of long-term health problems, such as cardiovascular and metabolic diseases in adulthood, owing to in utero fetal programming. We aimed to investigate lymphangiogenic activities in the lymphatic endothelial progenitor cells (LEPCs) of the offspring of PE. Human umbilical cord blood LEPCs from pregnant women with severe PE (n = 10) and gestationally matched normal pregnancies (n = 10) were purified with anti-vascular endothelial growth factor receptor 3 (VEGFR3)/podoplanin/CD11b microbeads using a magnetic cell sorter device. LEPCs from PE displayed significantly delayed differentiation and reduced formation of lymphatic endothelial cell (LEC) colonies compared with the LEPCs from normal pregnancies. LECs differentiated from PE-derived LEPCs exhibited decreased tube formation, migration, proliferation, adhesion, wound healing, and 3D-sprouting activities as well as increased lymphatic permeability through the disorganization of VE-cadherin junctions, compared with the normal pregnancy-derived LECs. In vivo, LEPCs from PE showed significantly reduced lymphatic vessel formation compared to the LEPCs of the normal pregnancy. Gene expression analysis revealed that compared to the normal pregnancy-derived LECs, the PE-derived LECs showed a significant decrease in the expression of pro-lymphangiogenic genes (GREM1, EPHB3, VEGFA, AMOT, THSD7A, ANGPTL4, SEMA5A, FGF2, and GBX2). Collectively, our findings demonstrate, for the first time, that LEPCs from PE have reduced lymphangiogenic activities in vitro and in vivo and show the decreased expression of pro-lymphangiogenic genes. This study opens a new avenue for investigation of the molecular mechanism of LEPC differentiation and lymphangiogenesis in the offspring of PE and subsequently may impact the treatment of long-term health problems such as cardiovascular and metabolic disorders of offspring with abnormal development of lymphatic vasculature.
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10
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González-Loyola A, Petrova TV. Development and aging of the lymphatic vascular system. Adv Drug Deliv Rev 2021; 169:63-78. [PMID: 33316347 DOI: 10.1016/j.addr.2020.12.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/22/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022]
Abstract
The lymphatic vasculature has a pivotal role in regulating body fluid homeostasis, immune surveillance and dietary fat absorption. The increasing number of in vitro and in vivo studies in the last decades has shed light on the processes of lymphatic vascular development and function. Here, we will discuss the current progress in lymphatic vascular biology such as the mechanisms of lymphangiogenesis, lymphatic vascular maturation and maintenance and the emerging mechanisms of lymphatic vascular aging.
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Affiliation(s)
- Alejandra González-Loyola
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, University of Lausanne, Switzerland.
| | - Tatiana V Petrova
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, University of Lausanne, Switzerland.
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11
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Lee S, Kang H, Park D, Yu J, Koh SK, Cho D, Kim D, Kang K, Jeon NL. Modeling 3D Human Tumor Lymphatic Vessel Network Using High‐Throughput Platform. Adv Biol (Weinh) 2021. [DOI: 10.1002/adbi.202000195] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Somin Lee
- Interdisciplinary Program for Bioengineering Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
| | - Habin Kang
- Interdisciplinary Program for Bioengineering Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
| | - Dohyun Park
- Department of Mechanical Engineering Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
| | - James Yu
- Interdisciplinary Program for Bioengineering Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
| | - Seung Kwon Koh
- Department of Health Sciences and Technology SAIHST Sungkyunkwan University 115, Irwon‐ro, Gangnam‐gu Seoul 06355 Republic of Korea
| | - Duck Cho
- Department of Health Sciences and Technology SAIHST Sungkyunkwan University 115, Irwon‐ro, Gangnam‐gu Seoul 06355 Republic of Korea
- Department of Laboratory Medicine and Genetics Samsung Medical Center Sungkyunkwan University School of Medicine 115, Irwon‐ro, Gangnam‐gu Seoul 06355 Republic of Korea
| | - Da‐Hyun Kim
- Adult Stem Cell Research Center and Research Institute for Veterinary Science College of Veterinary Medicine Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
| | - Kyung‐Sun Kang
- Adult Stem Cell Research Center and Research Institute for Veterinary Science College of Veterinary Medicine Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
| | - Noo Li Jeon
- Interdisciplinary Program for Bioengineering Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
- Department of Mechanical Engineering Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
- Institute of Advanced Machinery and Design Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
- Institute of BioEngineering Seoul National University 1, Gwanak‐ro, Gwanak‐gu Seoul 08826 Republic of Korea
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12
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Zhao Y, Wang X, Yang S, Song X, Sun N, Chen C, Zhang Y, Yao D, Huang J, Wang J, Zhang Y, Yang B. Kanglexin accelerates diabetic wound healing by promoting angiogenesis via FGFR1/ERK signaling. Biomed Pharmacother 2020; 132:110933. [PMID: 33128943 DOI: 10.1016/j.biopha.2020.110933] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/12/2020] [Accepted: 10/22/2020] [Indexed: 12/17/2022] Open
Abstract
Diabetic foot is one of the main causes of non-traumatic amputation. However, there is still lack of effective drugs to treat diabetic foot in clinical practice. Kanglexin (KLX) is a new anthraquinone compound with cardiovascular protective effects. Here we report that KLX accelerates diabetic wound healing by promoting angiogenesis via FGFR1/ERK signaling. Firstly, KM mice were injected (ip) with streptozocin to establish type 1 diabetic model. The full thickness wound with the diameter of 5 mm was prepared on the back of each mice. The wounds were treated with KLX once a day for 14 consecutive days. Results showed that KLX significantly accelerated the closure of diabetic wounds. Pathological studies of skin tissues around the wounds showed that KLX promoted the formation of granulation tissue and new blood vessels, increased collagen deposition and reduced inflammatory cell infiltration. Besides, KLX significantly alleviated advanced glycation end products (AGEs) - induced abnormal proliferation, migration and tubule formation of human umbilical vein endothelial cells (HUVECs), and up-regulated phospho-ERK1/2 both in the diabetic wound tissue and AGEs - treated HUVECs. Moreover, molecular docking results indicated that KLX had the potential to bind with FGF receptor 1 (FGFR1), and subsequent experiments confirmed that FGFR1 inhibitor PD173074 reversed the effect of KLX on promoting the phosphorylation of ERK1/2 and angiogenesis, suggesting that KLX promoted angiogenesis through FGFR1/ERK signaling. In conclusion, our study provides a new effective compound for treating diabetic wounds. More importantly, KLX has the potential to be developed as a topical drug to promote diabetic wound healing.
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Affiliation(s)
- Yixiu Zhao
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Xinhui Wang
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Shuang Yang
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Xia Song
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Na Sun
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Chao Chen
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yannan Zhang
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Dahong Yao
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Jian Huang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Jinhui Wang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yan Zhang
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China.
| | - Baofeng Yang
- State-Province Key Laboratory of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China.
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13
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Microvascular and lymphatic dysfunction in HFpEF and its associated comorbidities. Basic Res Cardiol 2020; 115:39. [PMID: 32451732 PMCID: PMC7248044 DOI: 10.1007/s00395-020-0798-y] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 05/13/2020] [Indexed: 02/07/2023]
Abstract
Heart failure with preserved ejection fraction (HFpEF) is a complex heterogeneous disease for which our pathophysiological understanding is still limited and specific prevention and treatment strategies are lacking. HFpEF is characterised by diastolic dysfunction and cardiac remodelling (fibrosis, inflammation, and hypertrophy). Recently, microvascular dysfunction and chronic low-grade inflammation have been proposed to participate in HFpEF development. Furthermore, several recent studies demonstrated the occurrence of generalized lymphatic dysfunction in experimental models of risk factors for HFpEF, including obesity, hypercholesterolaemia, type 2 diabetes mellitus (T2DM), hypertension, and aging. Here, we review the evidence for a combined role of coronary (micro)vascular dysfunction and lymphatic vessel alterations in mediating key pathological steps in HFpEF, including reduced cardiac perfusion, chronic low-grade inflammation, and myocardial oedema, and their impact on cardiac metabolic alterations (oxygen and nutrient supply/demand imbalance), fibrosis, and cardiomyocyte stiffness. We focus primarily on HFpEF caused by metabolic risk factors, such as obesity, T2DM, hypertension, and aging.
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14
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Kataru RP, Park HJ, Baik JE, Li C, Shin J, Mehrara BJ. Regulation of Lymphatic Function in Obesity. Front Physiol 2020; 11:459. [PMID: 32499718 PMCID: PMC7242657 DOI: 10.3389/fphys.2020.00459] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/16/2020] [Indexed: 12/15/2022] Open
Abstract
The lymphatic system has many functions, including macromolecules transport, fat absorption, regulation and modulation of adaptive immune responses, clearance of inflammatory cytokines, and cholesterol metabolism. Thus, it is evident that lymphatic function can play a key role in the regulation of a wide array of biologic phenomenon, and that physiologic changes that alter lymphatic function may have profound pathologic effects. Recent studies have shown that obesity can markedly impair lymphatic function. Obesity-induced pathologic changes in the lymphatic system result, at least in part, from the accumulation of inflammatory cells around lymphatic vessel leading to impaired lymphatic collecting vessel pumping capacity, leaky initial and collecting lymphatics, alterations in lymphatic endothelial cell (LEC) gene expression, and degradation of junctional proteins. These changes are important since impaired lymphatic function in obesity may contribute to the pathology of obesity in other organ systems in a feed-forward manner by increasing low-grade tissue inflammation and the accumulation of inflammatory cytokines. More importantly, recent studies have suggested that interventions that inhibit inflammatory responses, either pharmacologically or by lifestyle modifications such as aerobic exercise and weight loss, improve lymphatic function and metabolic parameters in obese mice. The purpose of this review is to summarize the pathologic effects of obesity on the lymphatic system, the cellular mechanisms that regulate these responses, the effects of impaired lymphatic function on metabolic syndrome in obesity, and the interventions that may improve lymphatic function in obesity.
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Affiliation(s)
- Raghu P Kataru
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Hyeong Ju Park
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Jung Eun Baik
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Claire Li
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Jinyeon Shin
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Babak J Mehrara
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, United States
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15
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Park M, Cho KA, Kim YH, Lee KH, Woo SY. Lymphatic endothelial cells promote T lymphocyte migration into lymph nodes under hyperlipidemic conditions. Biochem Biophys Res Commun 2020; 525:786-792. [PMID: 32147097 DOI: 10.1016/j.bbrc.2020.02.154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 02/26/2020] [Indexed: 11/26/2022]
Abstract
Lymphatic vessels serve as conduits through which immune cells traffic. Because lymphatic vessels are also involved in lipid transport, their function is vulnerable to abnormal metabolic conditions such as obesity and hyperlipidemia. Exactly how these conditions impact immune cell trafficking, however, is not well understood. Here, we found higher numbers of LYVE-1-positive lymphatic endothelial cells and CD3-positive T cells in the lymph nodes of mice fed high-cholesterol or high-fat diets compared with those of mice fed a normal chow diet. To confirm the effect of fat content on immune cell trafficking, the lymphatic endothelial SVEC4-10 cell line was treated with palmitic acid at a 100 μM concentration. After 24 h, palmitic acid-treated cells exhibited increased expression of podoplanin and vascular growth-associated molecules (VEGFC, VEGFD, VEGFR3, and NRP2) and enhanced tube formation. Microarray analysis showed an increase in pro-inflammatory cytokine and chemokine transcription after palmitic acid treatment. Finally, transwell migration assay confirmed that T cell line moved toward medium previously cultured with palmitic acid-treated SVEC4-10 cells. Together, our results suggest that hyperlipidemia drives lymphatic vessel remodeling and T cell migration toward lymphatic endothelial cells.
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Affiliation(s)
- Minhwa Park
- Department of Microbiology, College of Medicine, Ewha Womans University, Seoul, 07804, South Korea
| | - Kyung-Ah Cho
- Department of Microbiology, College of Medicine, Ewha Womans University, Seoul, 07804, South Korea
| | - Yu-Hee Kim
- Department of Microbiology, College of Medicine, Ewha Womans University, Seoul, 07804, South Korea
| | - Kyung Ho Lee
- Department of Dermatology, Bucheon St. Mary's Hospital, The Catholic University of Korea, 14647, South Korea.
| | - So-Youn Woo
- Department of Microbiology, College of Medicine, Ewha Womans University, Seoul, 07804, South Korea.
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16
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Jiang X, Tian W, Nicolls MR, Rockson SG. The Lymphatic System in Obesity, Insulin Resistance, and Cardiovascular Diseases. Front Physiol 2019; 10:1402. [PMID: 31798464 PMCID: PMC6868002 DOI: 10.3389/fphys.2019.01402] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/31/2019] [Indexed: 12/22/2022] Open
Abstract
Obesity, insulin resistance, dyslipidemia, and hypertension are fundamental clinical manifestations of the metabolic syndrome. Studies over the last few decades have implicated chronic inflammation and microvascular remodeling in the development of obesity and insulin resistance. Newer observations, however, suggest that dysregulation of the lymphatic system underlies the development of the metabolic syndrome. This review summarizes recent advances in the field, discussing how lymphatic abnormality promotes obesity and insulin resistance, and, conversely, how the metabolic syndrome impairs lymphatic function. We also discuss lymphatic biology in metabolically dysregulated diseases, including type 2 diabetes, atherosclerosis, and myocardial infarction.
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Affiliation(s)
- Xinguo Jiang
- VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Wen Tian
- VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Mark R Nicolls
- VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Stanley G Rockson
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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17
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Abstract
The lymphatic vasculature, which accompanies the blood vasculature in most organs, is indispensable in the maintenance of tissue fluid homeostasis, immune cell trafficking, and nutritional lipid uptake and transport, as well as in reverse cholesterol transport. In this Review, we discuss the physiological role of the lymphatic system in the heart in the maintenance of cardiac health and describe alterations in lymphatic structure and function that occur in cardiovascular pathology, including atherosclerosis and myocardial infarction. We also briefly discuss the role that immune cells might have in the regulation of lymphatic growth (lymphangiogenesis) and function. Finally, we provide examples of how the cardiac lymphatics can be targeted therapeutically to restore lymphatic drainage in the heart to limit myocardial oedema and chronic inflammation.
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Affiliation(s)
- Ebba Brakenhielm
- Normandy University, UniRouen, INSERM (Institut National de la Santé et de la Recherche Médicale) UMR1096 (EnVI Laboratory), FHU REMOD-VHF, Rouen, France.
| | - Kari Alitalo
- Wihuri Research Institute and Translational Cancer Biology Program, University of Helsinki, Biomedicum Helsinki, Helsinki, Finland.
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18
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Farnsworth RH, Karnezis T, Maciburko SJ, Mueller SN, Stacker SA. The Interplay Between Lymphatic Vessels and Chemokines. Front Immunol 2019; 10:518. [PMID: 31105685 PMCID: PMC6499173 DOI: 10.3389/fimmu.2019.00518] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/26/2019] [Indexed: 12/21/2022] Open
Abstract
Chemokines are a family of small protein cytokines that act as chemoattractants to migrating cells, in particular those of the immune system. They are categorized functionally as either homeostatic, constitutively produced by tissues for basal levels of cell migration, or inflammatory, where they are generated in association with a pathological inflammatory response. While the extravasation of leukocytes via blood vessels is a key step in cells entering the tissues, the lymphatic vessels also serve as a conduit for cells that are recruited and localized through chemoattractant gradients. Furthermore, the growth and remodeling of lymphatic vessels in pathologies is influenced by chemokines and their receptors expressed by lymphatic endothelial cells (LECs) in and around the pathological tissue. In this review we summarize the diverse role played by specific chemokines and their receptors in shaping the interaction of lymphatic vessels, immune cells, and other pathological cell types in physiology and disease.
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Affiliation(s)
- Rae H Farnsworth
- Tumor Angiogenesis and Microenvironment Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia
| | - Tara Karnezis
- Lymphatic and Regenerative Medicine Laboratory, O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, VIC, Australia
| | - Simon J Maciburko
- Lymphatic and Regenerative Medicine Laboratory, O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, VIC, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.,The Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Melbourne, VIC, Australia
| | - Steven A Stacker
- Tumor Angiogenesis and Microenvironment Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia.,Department of Surgery, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
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19
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Human blood vessel organoids as a model of diabetic vasculopathy. Nature 2019; 565:505-510. [PMID: 30651639 DOI: 10.1038/s41586-018-0858-8] [Citation(s) in RCA: 431] [Impact Index Per Article: 86.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/06/2018] [Indexed: 12/17/2022]
Abstract
The increasing prevalence of diabetes has resulted in a global epidemic1. Diabetes is a major cause of blindness, kidney failure, heart attacks, stroke and amputation of lower limbs. These are often caused by changes in blood vessels, such as the expansion of the basement membrane and a loss of vascular cells2-4. Diabetes also impairs the functions of endothelial cells5 and disturbs the communication between endothelial cells and pericytes6. How dysfunction of endothelial cells and/or pericytes leads to diabetic vasculopathy remains largely unknown. Here we report the development of self-organizing three-dimensional human blood vessel organoids from pluripotent stem cells. These human blood vessel organoids contain endothelial cells and pericytes that self-assemble into capillary networks that are enveloped by a basement membrane. Human blood vessel organoids transplanted into mice form a stable, perfused vascular tree, including arteries, arterioles and venules. Exposure of blood vessel organoids to hyperglycaemia and inflammatory cytokines in vitro induces thickening of the vascular basement membrane. Human blood vessels, exposed in vivo to a diabetic milieu in mice, also mimic the microvascular changes found in patients with diabetes. DLL4 and NOTCH3 were identified as key drivers of diabetic vasculopathy in human blood vessels. Therefore, organoids derived from human stem cells faithfully recapitulate the structure and function of human blood vessels and are amenable systems for modelling and identifying the regulators of diabetic vasculopathy, a disease that affects hundreds of millions of patients worldwide.
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20
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Wu H, Rahman HA, Dong Y, Liu X, Lee Y, Wen A, To KH, Xiao L, Birsner AE, Bazinet L, Wong S, Song K, Brophy ML, Mahamud MR, Chang B, Cai X, Pasula S, Kwak S, Yang W, Bischoff J, Xu J, Bielenberg DR, Dixon JB, D’Amato RJ, Srinivasan RS, Chen H. Epsin deficiency promotes lymphangiogenesis through regulation of VEGFR3 degradation in diabetes. J Clin Invest 2018; 128:4025-4043. [PMID: 30102256 PMCID: PMC6118634 DOI: 10.1172/jci96063] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 06/26/2018] [Indexed: 12/18/2022] Open
Abstract
Impaired lymphangiogenesis is a complication of chronic complex diseases, including diabetes. VEGF-C/VEGFR3 signaling promotes lymphangiogenesis, but how this pathway is affected in diabetes remains poorly understood. We previously demonstrated that loss of epsins 1 and 2 in lymphatic endothelial cells (LECs) prevented VEGF-C-induced VEGFR3 from endocytosis and degradation. Here, we report that diabetes attenuated VEGF-C-induced lymphangiogenesis in corneal micropocket and Matrigel plug assays in WT mice but not in mice with inducible lymphatic-specific deficiency of epsins 1 and 2 (LEC-iDKO). Consistently, LECs isolated from diabetic LEC-iDKO mice elevated in vitro proliferation, migration, and tube formation in response to VEGF-C over diabetic WT mice. Mechanistically, ROS produced in diabetes induced c-Src-dependent but VEGF-C-independent VEGFR3 phosphorylation, and upregulated epsins through the activation of transcription factor AP-1. Augmented epsins bound to and promoted degradation of newly synthesized VEGFR3 in the Golgi, resulting in reduced availability of VEGFR3 at the cell surface. Preclinically, the loss of lymphatic-specific epsins alleviated insufficient lymphangiogenesis and accelerated the resolution of tail edema in diabetic mice. Collectively, our studies indicate that inhibiting expression of epsins in diabetes protects VEGFR3 against degradation and ameliorates diabetes-triggered inhibition of lymphangiogenesis, thereby providing a novel potential therapeutic strategy to treat diabetic complications.
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Affiliation(s)
- Hao Wu
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - H.N. Ashiqur Rahman
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Yunzhou Dong
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Xiaolei Liu
- Center for Vascular and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Yang Lee
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Aiyun Wen
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Kim H.T. To
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Li Xiao
- Department of Nephrology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Amy E. Birsner
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Lauren Bazinet
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Scott Wong
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Kai Song
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Megan L. Brophy
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
| | - M. Riaj Mahamud
- Cardiovascular Biology Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Baojun Chang
- Vascular Medicine Institute, Pulmonary, Allergy and Critical Care Division, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Xiaofeng Cai
- Cardiovascular Biology Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Satish Pasula
- Cardiovascular Biology Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Sukyoung Kwak
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Wenxia Yang
- Department of Nephrology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Joyce Bischoff
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Jian Xu
- Department of Medicine, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
| | - Diane R. Bielenberg
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - J. Brandon Dixon
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Robert J. D’Amato
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - R. Sathish Srinivasan
- Cardiovascular Biology Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Hong Chen
- Vascular Biology Program, Harvard Medical School, Boston Children’s Hospital, Boston, Massachusetts, USA
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21
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HHEX is a transcriptional regulator of the VEGFC/FLT4/PROX1 signaling axis during vascular development. Nat Commun 2018; 9:2704. [PMID: 30006544 PMCID: PMC6045644 DOI: 10.1038/s41467-018-05039-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 05/25/2018] [Indexed: 12/12/2022] Open
Abstract
Formation of the lymphatic system requires the coordinated expression of several key regulators: vascular endothelial growth factor C (VEGFC), its receptor FLT4, and a key transcriptional effector, PROX1. Yet, how expression of these signaling components is regulated remains poorly understood. Here, using a combination of genetic and molecular approaches, we identify the transcription factor hematopoietically expressed homeobox (HHEX) as an upstream regulator of VEGFC, FLT4, and PROX1 during angiogenic sprouting and lymphatic formation in vertebrates. By analyzing zebrafish mutants, we found that hhex is necessary for sprouting angiogenesis from the posterior cardinal vein, a process required for lymphangiogenesis. Furthermore, studies of mammalian HHEX using tissue-specific genetic deletions in mouse and knockdowns in cultured human endothelial cells reveal its highly conserved function during vascular and lymphatic development. Our findings that HHEX is essential for the regulation of the VEGFC/FLT4/PROX1 axis provide insights into the molecular regulation of lymphangiogenesis. VEGFC, its receptor FLT4, and transcriptional effector PROX1 control formation of the lymphatic system but how is unclear. Here, the authors show that the transcription factor hematopoietically expressed homeobox (HHEX) regulates VEGFC, FLT4 and PROX1 in fish and mammals during angiogenic sprouting and lymphatic formation.
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22
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Guo Y, Li Y, Yang Y, Tang S, Zhang Y, Xiong L. Multiscale Imaging of Brown Adipose Tissue in Living Mice/Rats with Fluorescent Polymer Dots. ACS APPLIED MATERIALS & INTERFACES 2018; 10:20884-20896. [PMID: 29893119 DOI: 10.1021/acsami.8b06094] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Brown adipose tissue (BAT) has been identified as a promising target for the treatment of obesity, diabetes, and relevant metabolism disorders because of the adaptive thermogenesis ability of this tissue. Visualizing BAT may provide an essential tool for pathology study, drug screening, and efficacy evaluation. Owing to limitations of current nuclear and magnetic resonance imaging approaches for BAT detection, fluorescence imaging has advantages in large-scale preclinical research on small animals. Here, fast BAT imaging in mice is conducted based on polymer dots as fluorescent probes. As early as 5 min after the intravenous injection of polymer dots, extensive fluorescence is detected in the interscapular BAT and axillar BAT. In addition, axillar and inguinal white adipose tissues (WAT) are recognized. The real-time in vivo behavior of polymer dots in rodents is monitored using the probe-based confocal laser endomicroscopy imaging, and the preferred accumulation in BAT over WAT is confirmed by histological assays. Moreover, the whole study is conducted without a low temperature or pharmaceutical stimulation. The imaging efficacy is verified at the cellular, histological, and whole-body levels, and the present results indicate that fluorescent polymer dots may be a promising tool for the visualization of BAT in living subjects.
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Affiliation(s)
- Yixiao Guo
- Shanghai Med-X Engineering Center for Medical Equipment and Technology, School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , P. R. China
| | - Yao Li
- Shanghai Med-X Engineering Center for Medical Equipment and Technology, School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , P. R. China
| | - Yidian Yang
- Shanghai Med-X Engineering Center for Medical Equipment and Technology, School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , P. R. China
- The Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors , Shanghai Normal University , Shanghai 200234 , P. R. China
| | - Shiyi Tang
- Shanghai Med-X Engineering Center for Medical Equipment and Technology, School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , P. R. China
| | - Yufan Zhang
- Shanghai Med-X Engineering Center for Medical Equipment and Technology, School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , P. R. China
| | - Liqin Xiong
- Shanghai Med-X Engineering Center for Medical Equipment and Technology, School of Biomedical Engineering , Shanghai Jiao Tong University , Shanghai 200030 , P. R. China
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23
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Pruzin JJ, Nelson PT, Abner EL, Arvanitakis Z. Review: Relationship of type 2 diabetes to human brain pathology. Neuropathol Appl Neurobiol 2018; 44:347-362. [PMID: 29424027 PMCID: PMC5980704 DOI: 10.1111/nan.12476] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 01/12/2018] [Indexed: 12/14/2022]
Abstract
Type 2 diabetes (T2D) and Alzheimer's disease (AD) are both highly prevalent diseases worldwide, and each is associated with high-morbidity and high-mortality. Numerous clinical studies have consistently shown that T2D confers a two-fold increased risk for a dementia, including dementia attributable to AD. Yet, the mechanisms underlying this relationship, especially nonvascular mechanisms, remain debated. Cerebral vascular disease (CVD) is likely to be playing a role. But increased AD neuropathologic changes (ADNC), specifically neuritic amyloid plaques (AP) and neurofibrillary tangles (NFT), are also posited mechanisms. The clinicopathological studies to date demonstrate T2D to be consistently associated with infarcts, particularly subcortical lacunar infarcts, but not ADNC, suggesting the association of T2D with dementia may largely be mediated through CVD. Furthermore, growing interest exists in insulin resistance (IR), particularly IR within the brain itself, which may be an associated but distinct phenomenon from T2D, and possibly itself associated with ADNC. Other mechanisms largely related to protein processing and efflux in the central nervous system with altered function in T2D may also be involved. Such mechanisms include islet amyloid polypeptide (or amylin) deposition, co-localized with beta-amyloid and found in more abundance in the AD temporal cortex, blood-brain barrier breakdown and dysfunction, potentially related to pericyte degeneration, and disturbance of brain lymphatics, both in the glial lymphatic system and the newly discovered discrete central nervous system lymph vessels. Medical research is ongoing to further disentangle the relationship of T2D to dementia in the ageing human brain.
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Affiliation(s)
- Jeremy J. Pruzin
- Rush Alzheimer’s Disease Center, Chicago, IL
- Dept of Neurological Sciences, Rush University Medical Center, Chicago, IL
| | - Peter T. Nelson
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY
- Department of Pathology, University of Kentucky, Lexington, KY
| | - Erin L. Abner
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY
- Department of Epidemiology, University of Kentucky, Lexington, KY
| | - Zoe Arvanitakis
- Rush Alzheimer’s Disease Center, Chicago, IL
- Dept of Neurological Sciences, Rush University Medical Center, Chicago, IL
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24
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Salem M, Tremblay A, Pelletier J, Robaye B, Sévigny J. P2Y 6 Receptors Regulate CXCL10 Expression and Secretion in Mouse Intestinal Epithelial Cells. Front Pharmacol 2018. [PMID: 29541027 PMCID: PMC5835513 DOI: 10.3389/fphar.2018.00149] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
In this study, we investigated the role of extracellular nucleotides in chemokine (KC, MIP-2, MCP-1, and CXCL10) expression and secretion by murine primary intestinal epithelial cells (IECs) with a focus on P2Y6 receptors. qRT-PCR experiments showed that P2Y6 was the dominant nucleotide receptor expressed in mouse IEC. In addition, the P2Y6 ligand UDP induced expression and secretion of CXCL10. For the other studies, we took advantage of mice deficient in P2Y6 (P2ry6-/-). Similar expression levels of P2Y1, P2Y2, P2X2, P2X4, and A2A were detected in P2ry6-/- and WT IEC. Agonists of TLR3 (poly(I:C)), TLR4 (LPS), P2Y1, and P2Y2 increased the expression and secretion of CXCL10 more prominently in P2ry6-/- IEC than in WT IEC. CXCL10 expression and secretion induced by poly(I:C) in both P2ry6-/- and WT IEC were inhibited by general P2 antagonists (suramin and Reactive-Blue-2), by apyrase, and by specific antagonists of P2Y1, P2Y2, P2Y6 (only in WT), and P2X4. Neither adenosine nor an A2A antagonist had an effect on CXCL10 expression and secretion. Macrophage chemotaxis was induced by the supernatant of poly(I:C)-treated IEC which was consistent with the level of CXCL10 secreted. Finally, the non-nucleotide agonist FGF2 induced MMP9 mRNA expression also at a higher level in P2ry6-/- IEC than in WT IEC. In conclusion, extracellular nucleotides regulate CXCL10 expression and secretion by IEC. In the absence of P2Y6, these effects are modulated by other P2 receptors also present on IEC. These data suggest that the presence of P2Y6 regulates chemokine secretion and may also regulate IEC homeostasis.
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Affiliation(s)
- Mabrouka Salem
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Québec City, QC, Canada.,Centre de Recherche du CHU de Québec - Université Laval, Québec City, QC, Canada
| | - Alain Tremblay
- Centre de Recherche du CHU de Québec - Université Laval, Québec City, QC, Canada
| | - Julie Pelletier
- Centre de Recherche du CHU de Québec - Université Laval, Québec City, QC, Canada
| | - Bernard Robaye
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire, Université Libre de Bruxelles, Gosselies, Belgium
| | - Jean Sévigny
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Québec City, QC, Canada.,Centre de Recherche du CHU de Québec - Université Laval, Québec City, QC, Canada
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25
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Slieker RC, van der Heijden AAWA, van Leeuwen N, Mei H, Nijpels G, Beulens JWJ, 't Hart LM. HbA 1c is associated with altered expression in blood of cell cycle- and immune response-related genes. Diabetologia 2018; 61:138-146. [PMID: 29159468 PMCID: PMC6448931 DOI: 10.1007/s00125-017-4467-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/01/2017] [Indexed: 12/22/2022]
Abstract
AIMS/HYPOTHESIS Individuals with type 2 diabetes are heterogeneous in their glycaemic control as tracked by blood HbA1c levels. Here, we investigated the extent to which gene expression levels in blood reflect current and future HbA1c levels. METHODS HbA1c levels at baseline and 1 and 2 year follow-up were compared with gene expression levels in 391 individuals with type 2 diabetes from the Hoorn Diabetes Care System Cohort (15,564 genes, RNA sequencing). The functions of associated baseline genes were investigated further using pathway enrichment analysis. Using publicly available data, we investigated whether the genes identified are also associated with HbA1c in the target tissues, muscle and pancreas. RESULTS At baseline, 220 genes (1.4%) were associated with baseline HbA1c. Identified genes were enriched for cell cycle and complement system activation pathways. The association of 15 genes extended to the target tissues, muscle (n = 113) and pancreatic islets (n = 115). At follow-up, expression of 25 genes (0.16%) associated with 1 year HbA1c and nine genes (0.06%) with 2 year HbA1c. Five genes overlapped across all time points, and 18 additional genes between baseline and 1 year follow-up. After adjustment for baseline HbA1c, the number of significant genes at 1 and 2 years markedly decreased, suggesting that gene expression levels in whole blood reflect the current glycaemic state and but not necessarily the future glycaemic state. CONCLUSIONS/INTERPRETATION HbA1c levels in individuals with type 2 diabetes are associated with expression levels of genes that link to the cell cycle and complement system activation.
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Affiliation(s)
- Roderick C Slieker
- Department of Molecular Cell Biology, Leiden University Medical Center, Postal Box 9600, 2300 RC, Leiden, the Netherlands
- Department of Epidemiology and Biostatistics, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, the Netherlands
| | - Amber A W A van der Heijden
- Department of General Practice and Elderly Care Medicine, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, the Netherlands
| | - Nienke van Leeuwen
- Department of Molecular Cell Biology, Leiden University Medical Center, Postal Box 9600, 2300 RC, Leiden, the Netherlands
| | - Hailiang Mei
- Sequencing Analysis Support Core, Leiden University Medical Center, Leiden, the Netherlands
| | - Giel Nijpels
- Department of General Practice and Elderly Care Medicine, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, the Netherlands
| | - Joline W J Beulens
- Department of Epidemiology and Biostatistics, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, the Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Leen M 't Hart
- Department of Molecular Cell Biology, Leiden University Medical Center, Postal Box 9600, 2300 RC, Leiden, the Netherlands.
- Department of Epidemiology and Biostatistics, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, the Netherlands.
- Molecular Epidemiology Section, Leiden University Medical Center, Leiden, the Netherlands.
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26
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Ferraro NM, Dampier W, Weingarten MS, Spiller KL. Deconvolution of heterogeneous wound tissue samples into relative macrophage phenotype composition via models based on gene expression. Integr Biol (Camb) 2017; 9:328-338. [PMID: 28290581 DOI: 10.1039/c7ib00018a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Macrophages, the primary cell of the innate immune system, act on a spectrum of phenotypes that correspond to diverse functions. Dysregulation of macrophage phenotype is associated with many diseases. In particular, defective transition from pro-inflammatory (M1) to anti-inflammatory (M2) behavior has been implicated as a potential source of sustained inflammation that prevents healing of chronic wounds such as diabetic ulcers. In order to design effective treatments, an understanding of the relative presence of macrophage phenotypes during tissue repair is necessary. Inferring the relative phenotype composition is currently challenging due to the heterogeneous nature of the macrophages themselves and also of tissue samples. We propose here a method to deconvolute gene expression from heterogeneous tissue samples into the composition of two primary macrophage phenotypes (M1 and M2). Our final method uses gene expression signatures for each phenotype cultivated in vitro as input to a predictive model that infers sample composition with an average error of 0.16, and whose predictions fit known compositions prepared in vitro with an R2 value of 0.90. Finally, we apply this model to describe macrophage behavior in human diabetic ulcer healing using clinically isolated ulcer tissue samples. The model predicted that non-healing diabetic ulcers contained higher proportions of M1 macrophages compared to healing diabetic ulcers, in agreement with numerous studies that have implicated a dysfunctional M1-to-M2 transition in the impaired healing of diabetic ulcers. These results show proof of concept that the model holds utility in making predictions regarding macrophage behavior in heterogeneous samples, with potential application as a wound healing diagnostic.
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Affiliation(s)
- Nicole M Ferraro
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA.
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27
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Jin Z, Yang YZ, Chen JX, Tang YZ. Inhibition of pro-inflammatory mediators in RAW264.7 cells by 7-hydroxyflavone and 7,8-dihydroxyflavone. ACTA ACUST UNITED AC 2017; 69:865-874. [PMID: 28295316 DOI: 10.1111/jphp.12714] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/26/2017] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Flavonoids are a class of compounds that having the benzo-γ-pyrone skeleton, which possess anti-inflammatory properties in vitro and in vivo. The aim of this study was to investigate the inhibition of two flavonoids 7-hydroxyflavone (HF) and 7,8-dihydroxyflavone (DHF) on the production of pro-inflammatory mediators in RAW264.7 cells activated by lipopolysaccharides (LPS). METHODS For this purpose, we selected four pro-inflammatory mediators including nitric oxide (NO), prostaglandin E2 (PGE2 ), tumour necrosis factor-α (TNF-α) and interleukin-6 (IL-6) as markers to evaluate the anti-inflammatory activity of HF and DHF. KEY FINDINGS In this regard, we showed that HF and DHF dose-dependently reduced the production of NO, PGE2 , TNF-α and IL-6 through downregulating mRNA expression of inducible nitric oxide synthase (iNOS), cyclooxygenase 2 (COX2), TNF-α and IL-6, respectively. Moreover, DHF generally possesses more efficient than HF in reducing these markers secretion in this study. CONCLUSIONS Consider together, these findings suggest that DHF and HF can inhibit LPS-induced inflammation via attenuating the production of NO, PGE2 , TNF-α and IL-6, indicating that they may be lead compounds for developing anti-inflammatory agent.
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Affiliation(s)
- Zhen Jin
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yao-Zhi Yang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jian-Xin Chen
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - You-Zhi Tang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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28
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Abouelkheir GR, Upchurch BD, Rutkowski JM. Lymphangiogenesis: fuel, smoke, or extinguisher of inflammation's fire? Exp Biol Med (Maywood) 2017; 242:884-895. [PMID: 28346012 DOI: 10.1177/1535370217697385] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Lymphangiogenesis is a recognized hallmark of inflammatory processes in tissues and organs as diverse as the skin, heart, bowel, and airways. In clinical and animal models wherein the signaling processes of lymphangiogenesis are manipulated, most studies demonstrate that an expanded lymphatic vasculature is necessary for the resolution of inflammation. The fundamental roles that lymphatics play in fluid clearance and immune cell trafficking from the periphery make these results seemingly obvious as a mechanism of alleviating locally inflamed environments: the lymphatics are simply providing a drain. Depending on the tissue site, lymphangiogenic mechanism, or induction timeframe, however, evidence shows that inflammation-associated lymphangiogenesis (IAL) may worsen the pathology. Recent studies have identified lymphatic endothelial cells themselves to be local regulators of immune cell activity and its consequential phenotypes - a more active role in inflammation regulation than previously thought. Indeed, results focusing on the immunocentric roles of peripheral lymphatic function have revealed that the basic drainage task of lymphatic vessels is a complex balance of locally processed and transported antigens as well as interstitial cytokine and immune cell signaling: an interplay that likely defines the function of IAL. This review will summarize the latest findings on how IAL impacts a series of disease states in various tissues in both preclinical models and clinical studies. This discussion will serve to highlight some emerging areas of lymphatic research in an attempt to answer the question relevant to an array of scientists and clinicians of whether IAL helps to fuel or extinguish inflammation. Impact statement Inflammatory progression is present in acute and chronic tissue pathologies throughout the body. Lymphatic vessels play physiological roles relevant to all medical fields as important regulators of fluid balance, immune cell trafficking, and immune identity. Lymphangiogenesis is often concurrent with inflammation and can potentially aide or worsen disease progression. How new lymphatic vessels impact inflammation and by which mechanism is an important consideration in current and future clinical therapies targeting inflammation and/or vasculogenesis. This review identifies, across a range of tissue-specific pathologies, the current understanding of inflammation-associated lymphangiogenesis in the progression or resolution of inflammation.
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Affiliation(s)
- Gabriella R Abouelkheir
- 1 Division of Lymphatic Biology, Department of Medical Physiology, Texas A&M College of Medicine, College Station, TX 77843, USA
| | - Bradley D Upchurch
- 1 Division of Lymphatic Biology, Department of Medical Physiology, Texas A&M College of Medicine, College Station, TX 77843, USA
| | - Joseph M Rutkowski
- 1 Division of Lymphatic Biology, Department of Medical Physiology, Texas A&M College of Medicine, College Station, TX 77843, USA
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29
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Xue Q, Fan H, Li K, Yang L, Sun L, Liu Y. Comparative evaluations on phenolic antioxidants of nine adulterants and anti-inflammation of four alternatives with their original herb Erycibe schmidtii. RSC Adv 2017. [DOI: 10.1039/c7ra10767f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Erycibe schmidtii is widely used as folk medicine in China for treatments of various inflammations.
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Affiliation(s)
- Qiang Xue
- National Engineering Laboratory for Tree Breeding
- College of Biological Sciences and Biotechnology
- Beijing Forestry University
- Beijing 100083
- China
| | - Hang Fan
- National Engineering Laboratory for Tree Breeding
- College of Biological Sciences and Biotechnology
- Beijing Forestry University
- Beijing 100083
- China
| | - Ke Li
- National Engineering Laboratory for Tree Breeding
- College of Biological Sciences and Biotechnology
- Beijing Forestry University
- Beijing 100083
- China
| | - Lingguang Yang
- National Engineering Laboratory for Tree Breeding
- College of Biological Sciences and Biotechnology
- Beijing Forestry University
- Beijing 100083
- China
| | - Liwei Sun
- National Engineering Laboratory for Tree Breeding
- College of Biological Sciences and Biotechnology
- Beijing Forestry University
- Beijing 100083
- China
| | - Yujun Liu
- National Engineering Laboratory for Tree Breeding
- College of Biological Sciences and Biotechnology
- Beijing Forestry University
- Beijing 100083
- China
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30
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Sabine A, Saygili Demir C, Petrova TV. Endothelial Cell Responses to Biomechanical Forces in Lymphatic Vessels. Antioxid Redox Signal 2016; 25:451-65. [PMID: 27099026 DOI: 10.1089/ars.2016.6685] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
SIGNIFICANCE Lymphatic vessels are important components of the cardiovascular and immune systems. They contribute both to the maintenance of normal homeostasis and to many pathological conditions, such as cancer and inflammation. The lymphatic vasculature is subjected to a variety of biomechanical forces, including fluid shear stress and vessel circumferential stretch. RECENT ADVANCES This review will discuss recent advances in our understanding of biomechanical forces in lymphatic vessels and their role in mammalian lymphatic vascular development and function. CRITICAL ISSUES We will highlight the importance of fluid shear stress generated by lymph flow in organizing the lymphatic vascular network. We will also describe how mutations in mechanosensitive genes lead to lymphatic vascular dysfunction. FUTURE DIRECTIONS Better understanding of how biomechanical and biochemical stimuli are perceived and interpreted by lymphatic endothelial cells is important for targeting regulation of lymphatic function in health and disease. Important remaining critical issues and future directions in the field will be discussed in this review. Antioxid. Redox Signal. 25, 451-465.
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Affiliation(s)
- Amélie Sabine
- 1 Ludwig Institute for Cancer Research, University of Lausanne Branch & Department of Fundamental Oncology, CHUV and University of Lausanne , Epalinges, Switzerland
| | - Cansaran Saygili Demir
- 1 Ludwig Institute for Cancer Research, University of Lausanne Branch & Department of Fundamental Oncology, CHUV and University of Lausanne , Epalinges, Switzerland
| | - Tatiana V Petrova
- 1 Ludwig Institute for Cancer Research, University of Lausanne Branch & Department of Fundamental Oncology, CHUV and University of Lausanne , Epalinges, Switzerland .,2 Division of Experimental Pathology, Institute of Pathology , CHUV, Lausanne, Switzerland .,3 Swiss Institute for Experimental Cancer Research , EPFL, Switzerland
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31
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Lymphangiogenesis is increased in heart valve endocarditis. Int J Cardiol 2016; 219:317-21. [DOI: 10.1016/j.ijcard.2016.06.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Accepted: 06/12/2016] [Indexed: 01/13/2023]
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32
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Ramirez HA, Liang L, Pastar I, Rosa AM, Stojadinovic O, Zwick TG, Kirsner RS, Maione AG, Garlick JA, Tomic-Canic M. Comparative Genomic, MicroRNA, and Tissue Analyses Reveal Subtle Differences between Non-Diabetic and Diabetic Foot Skin. PLoS One 2015; 10:e0137133. [PMID: 26318001 PMCID: PMC4552836 DOI: 10.1371/journal.pone.0137133] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/12/2015] [Indexed: 12/24/2022] Open
Abstract
Diabetes Mellitus (DM) is a chronic, severe disease rapidly increasing in incidence and prevalence and is associated with numerous complications. Patients with DM are at high risk of developing diabetic foot ulcers (DFU) that often lead to lower limb amputations, long term disability, and a shortened lifespan. Despite this, the effects of DM on human foot skin biology are largely unknown. Thus, the focus of this study was to determine whether DM changes foot skin biology predisposing it for healing impairment and development of DFU. Foot skin samples were collected from 20 patients receiving corrective foot surgery and, using a combination of multiple molecular and cellular approaches, we performed comparative analyses of non-ulcerated non-neuropathic diabetic foot skin (DFS) and healthy non-diabetic foot skin (NFS). MicroRNA (miR) profiling of laser captured epidermis and primary dermal fibroblasts from both DFS and NFS samples identified 5 miRs de-regulated in the epidermis of DFS though none reached statistical significance. MiR-31-5p and miR-31-3p were most profoundly induced. Although none were significantly regulated in diabetic fibroblasts, miR-29c-3p showed a trend of up-regulation, which was confirmed by qPCR in a prospective set of 20 skin samples. Gene expression profiling of full thickness biopsies identified 36 de-regulated genes in DFS (>2 fold-change, unadjusted p-value ≤ 0.05). Of this group, three out of seven tested genes were confirmed by qPCR: SERPINB3 was up-regulated whereas OR2A4 and LGR5 were down-regulated in DFS. However no morphological differences in histology, collagen deposition, and number of blood vessels or lymphocytes were found. No difference in proliferative capacity was observed by quantification of Ki67 positive cells in epidermis. These findings suggest DM causes only subtle changes to foot skin. Since morphology, mRNA and miR levels were not affected in a major way, additional factors, such as neuropathy, vascular complications, or duration of DM, may further compromise tissue's healing ability leading to development of DFUs.
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Affiliation(s)
- Horacio A. Ramirez
- Human Genetics and Genomics Graduate Program in Biomedical Sciences, University of Miami Miller School of Medicine, Miami, FL, United States of America
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School Of Medicine, Miami, FL, United States of America
| | - Liang Liang
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School Of Medicine, Miami, FL, United States of America
| | - Irena Pastar
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School Of Medicine, Miami, FL, United States of America
| | - Ashley M. Rosa
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School Of Medicine, Miami, FL, United States of America
| | - Olivera Stojadinovic
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School Of Medicine, Miami, FL, United States of America
| | - Thomas G. Zwick
- University of Miami Hospital, UM Health System, Miami, FL, United States of America
| | - Robert S. Kirsner
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School Of Medicine, Miami, FL, United States of America
- University of Miami Hospital, UM Health System, Miami, FL, United States of America
| | - Anna G. Maione
- Cell, Molecular, Developmental Biology, Tufts University, Sackler School of Graduate Biomedical Sciences, Boston, MA, United States of America
- Department of Oral and Maxillofacial Pathology, Oral Medicine and Craniofacial Pain School of Dental Medicine, Tufts University, Boston, MA, United States of America
| | - Jonathan A. Garlick
- Cell, Molecular, Developmental Biology, Tufts University, Sackler School of Graduate Biomedical Sciences, Boston, MA, United States of America
- Department of Oral and Maxillofacial Pathology, Oral Medicine and Craniofacial Pain School of Dental Medicine, Tufts University, Boston, MA, United States of America
| | - Marjana Tomic-Canic
- Human Genetics and Genomics Graduate Program in Biomedical Sciences, University of Miami Miller School of Medicine, Miami, FL, United States of America
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School Of Medicine, Miami, FL, United States of America
- * E-mail:
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33
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Keller T, Kalt R, Raab I, Schachner H, Mayrhofer C, Kerjaschki D, Hantusch B. Selection of scFv Antibody Fragments Binding to Human Blood versus Lymphatic Endothelial Surface Antigens by Direct Cell Phage Display. PLoS One 2015; 10:e0127169. [PMID: 25993332 PMCID: PMC4439027 DOI: 10.1371/journal.pone.0127169] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 04/13/2015] [Indexed: 12/04/2022] Open
Abstract
The identification of marker molecules specific for blood and lymphatic endothelium may provide new diagnostic tools and identify new targets for therapy of immune, microvascular and cancerous diseases. Here, we used a phage display library expressing human randomized single-chain Fv (scFv) antibodies for direct panning against live cultures of blood (BECs) and lymphatic (LECs) endothelial cells in solution. After six panning rounds, out of 944 sequenced antibody clones, we retrieved 166 unique/diverse scFv fragments, as indicated by the V-region sequences. Specificities of these phage clone antibodies for respective compartments were individually tested by direct cell ELISA, indicating that mainly pan-endothelial cell (EC) binders had been selected, but also revealing a subset of BEC-specific scFv antibodies. The specific staining pattern was recapitulated by twelve phage-independently expressed scFv antibodies. Binding capacity to BECs and LECs and differential staining of BEC versus LEC by a subset of eight scFv antibodies was confirmed by immunofluorescence staining. As one antigen, CD146 was identified by immunoprecipitation with phage-independent scFv fragment. This antibody, B6-11, specifically bound to recombinant CD146, and to native CD146 expressed by BECs, melanoma cells and blood vessels. Further, binding capacity of B6-11 to CD146 was fully retained after fusion to a mouse Fc portion, which enabled eukaryotic cell expression. Beyond visualization and diagnosis, this antibody might be used as a functional tool. Overall, our approach provided a method to select antibodies specific for endothelial surface determinants in their native configuration. We successfully selected antibodies that bind to antigens expressed on the human endothelial cell surfaces in situ, showing that BECs and LECs share a majority of surface antigens, which is complemented by cell-type specific, unique markers.
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Affiliation(s)
- Thomas Keller
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Romana Kalt
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Ingrid Raab
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Helga Schachner
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Corina Mayrhofer
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, Austria
| | - Dontscho Kerjaschki
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Brigitte Hantusch
- Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria
- * E-mail:
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34
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Choi W, Byun YJ, Jung E, Noh H, Hajrasouliha AR, Sadrai Z, Chang E, Lee JH, Lee HK. Chemokine decoy receptor D6 mimicking trap (D6MT) prevents allosensitization and immune rejection in murine corneal allograft model. J Leukoc Biol 2014; 97:413-24. [PMID: 25395300 DOI: 10.1189/jlb.5a0414-233rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Although corneal allotransplantation is performed in the immune-privileged cornea, many grafts are still rejected after transplantation. This study examined the role of chemokine receptor D6 expression in a corneal allograft rejection, investigated the modulation of D6 expression in cells, and determined the effect of D6 on graft survival. Interestingly, D6 was highly expressed in CD45 -: cells and the corneal epithelium of accepted corneal allografts. From the mouse corneal allograft model, TGF-β was found to play a key role in D6 up-regulation, leading to reduced CCL2, CCL5, and CCL3. To modulate D6 chemokine binding, a D6MT was developed and showed effective chemokine trapping through SPR and FACS assays. By treating corneal allografts with D6MT, the allograft survival rate was improved, and (lymph) angiogenesis was reduced. Direct allosensitization and DC LN homing was drastically reduced in the mouse corneal allograft model. These findings suggest that TGF-β is a positive regulator of D6 expression, and it is a potential therapeutic target to enhance the survival of corneal allografts.
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Affiliation(s)
- Wungrak Choi
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Yu Jeong Byun
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Eunae Jung
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Hyemi Noh
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Amir R Hajrasouliha
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Zahra Sadrai
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Eunju Chang
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Joon H Lee
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
| | - Hyung Keun Lee
- *Institute of Vision Research, Department of Ophthalmology, and Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; Kentucky Lions Eye Center, Department of Ophthalmology, University of Louisville, Louisville, Kentucky, USA; Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Anatomy and Cell Biology, University of Ulsan College of Medicine, Seoul, Korea; and Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea
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35
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Abstract
Lymphatic vessels (LVs) are involved in a number of physiological and pathophysiological processes such as fluid homoeostasis, immune surveillance, and resolution of inflammation and wound healing. Lymphangiogenesis, the outgrowth of existing LVs and the formation of new ones, has received increasing attention over the past decade on account of its prominence in organ physiology and pathology, which has been enabled by the development of specific tools to study lymph vessel functions. Several studies have been devoted to renal lymphatic vasculature and lymphangiogenesis in kidney diseases, such as chronic renal transplant dysfunction, primary renal fibrotic disorders, proteinuria, diabetic nephropathy and renal inflammation. This review describes the most recent findings on lymphangiogenesis, with a specific focus on renal lymphangiogenesis and its impact on renal diseases. We suggest renal lymphatics as a possible target for therapeutic interventions in renal medicine to dampen tubulointerstitial tissue remodelling and improve renal functioning.
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Abstract
Lymphatic vessels constitute a ubiquitous countercurrent system to the blood vasculature that returns interstitial fluid, salts, small molecules, resorbed fat, and cells to the bloodstream. They serve as conduits to lymph nodes and are essential for multiple physiologic activities. However, they are also hijacked by cancer cells to establish initial lymph node metastases, as well as by infectious agents and parasites. Despite these obvious important functions in human pathologies, a more detailed understanding of the molecular mechanisms involved in the regulation of the lymphatic vasculature has trailed that of the blood vasculature for many years, mainly because critical specific characteristics of lymphatic endothelial cells were discovered only recently. In this Review series, several major aspects of the active and passive involvement of the lymphatic vasculature in human disease and physiology are presented, with a focus on translational findings.
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Kim H, Kataru RP, Koh GY. Inflammation-associated lymphangiogenesis: a double-edged sword? J Clin Invest 2014; 124:936-42. [PMID: 24590279 DOI: 10.1172/jci71607] [Citation(s) in RCA: 163] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Lymphangiogenesis and lymphatic vessel remodeling are complex biological processes frequently observed during inflammation. Accumulating evidence indicates that inflammation-associated lymphangiogenesis (IAL) is not merely an endpoint event, but actually a phenomenon actively involved in the pathophysiology of various inflammatory disorders. The VEGF-C/VEGFR-3 and VEGF-A/VEGF-R2 signaling pathways are two of the best-studied pathways in IAL. Methods targeting these molecules, such as prolymphangiogenic or antilymphatic treatments, were found to be beneficial in various preclinical and/or clinical studies. This Review focuses on the most recent achievements in the fields of lymphatic biology relevant to inflammatory conditions. Additionally, preclinical and clinical therapies that modulate IAL are summarized.
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Szatmary AC, Stuelten CH, Nossal R. Improving the design of the agarose spot assay for eukaryotic cell chemotaxis. RSC Adv 2014; 4:57343-57349. [PMID: 25530845 DOI: 10.1039/c4ra08572h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Migration of cells along gradients of effector molecules, i.e., chemotaxis, is necessary in immune response and is involved in development and cancer metastasis. The experimental assessment of chemotaxis thus is of high interest. The agarose spot assay is a simple tissue culture system used to analyze chemotaxis. Although direction sensing requires gradients to be sufficiently steep, how the chemical gradients developed in this assay change over time, and thus, under what conditions chemotaxis is plausible, has not yet been determined. Here, we use numerical solution of the diffusion equation to determine the chemoattractant gradient produced in the assay. Our analysis shows that, for the usual spot size, the lifetime of the assay is optimized if the chemoattractant concentration in the spot is initially 30 times the dissociation constant of the chemoattractant-receptor bond. This result holds regardless of the properties of the chemoattractant. With this initial concentration, the chemoattractant gradient falls to the minimum threshold for directional sensing at the same time that the concentration drops to the optimal level for detecting gradient direction. If a higher initial chemoattractant concentration is used, the useful lifetime of the assay is likely to be shortened because receptor saturation may decrease the cells' sensitivity to the gradient; lower initial concentrations would result in too little chemoattractant for the cells to detect. Moreover, chemoattractants with higher diffusion coefficients would sustain gradients for less time. Based on previous measurements of the diffusion coefficients of the chemoattractants EGF and CXCL12, we estimate that the assay will produce gradients that cells can sense for a duration of 10 h for EGF and 5 h for CXCL12. These gradient durations are comparable to what can be achieved with the Boyden chamber assay. The analysis presented in this work facilitates determination of suitable parameters for the assay, and can be used to assess whether observed cell motility is likely due to chemotaxis or chemokinesis.
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Affiliation(s)
- Alex C Szatmary
- Program in Physical Biology, Eunice Kennedy Shriver National Institute of Child Health, and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Christina H Stuelten
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Ralph Nossal
- Program in Physical Biology, Eunice Kennedy Shriver National Institute of Child Health, and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
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Staumont-Sallé D. [What's new in dermatological research?]. Ann Dermatol Venereol 2013; 140 Suppl 3:S254-62. [PMID: 24365497 DOI: 10.1016/s0151-9638(13)70141-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
In 2013, news from research has clearly shown that dermatology is bound to occupy a more important place in fundamental research. Among these evidences are an increasing number of papers devoted to "Skin" in journals with the highest impact factors and the excellence of the scientific program of the International Investigative Dermatology Meeting held in May in Edinburgh. This paper outlines a selection of scientific works published between September 2012 and August 2013 or presented as communications at the IID Meeting. This selection was made based on the quality of methods used by the authors to obtain results, and on the impact of these scientific results in terms of pathophysiological and therapeutical advances.
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Affiliation(s)
- D Staumont-Sallé
- Service de dermatologie, hôpital Claude-Huriez, CHRU de Lille, France; Université Lille 2, Inserm U1011, Institut Pasteur de Lille, France.
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Basílio J, Hoeth M, Holper-Schichl YM, Resch U, Mayer H, Hofer-Warbinek R, de Martin R. TNFα-induced down-regulation of Sox18 in endothelial cells is dependent on NF-κB. Biochem Biophys Res Commun 2013; 442:221-6. [PMID: 24269235 DOI: 10.1016/j.bbrc.2013.11.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 11/07/2013] [Indexed: 10/26/2022]
Abstract
The transcription factor Sox18 plays a role in angiogenesis, including lymphangiogenesis, where it is upregulated by growth factors and directs the expression of genes encoding, e.g., guidance molecules and a matrix metalloproteinase. Conversely, we found that in human umbilical vein endothelial cells (HUVEC) Sox18 is repressed by the pro-inflammatory mediator TNFα (as well as IL-1 and LPS). Since a common feature of these mediators is the activation of the NF-κB signaling pathway, we investigated whether Sox18 downregulation is dependent on this transcription factor. Transduction of HUVEC with an adenoviral vector directing the expression of the NF-κB inhibitor IκBα prevented the downregulation of Sox18. Transient transfections of Sox18 promoter reporter genes revealed that the downregulation takes place on the level of transcription, and that the p65/RelA subunit of NF-κB was operative. Furthermore, the responsible promoter region of Sox18 is located within -1.0kb from the transcriptional start site. The repression of Sox18 and its target genes may lead to altered formation of vessels in inflamed settings.
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Affiliation(s)
- José Basílio
- Department of Vascular Biology and Thrombosis Research, Medical University of Vienna, Lazarettg. 19, Vienna, Austria
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