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Li Z, Zhang Y, Ma M, Wang W, Hui H, Tian J, Chen Y. Targeted mitigation of neointimal hyperplasia via magnetic field-directed localization of superparamagnetic iron oxide nanoparticle-labeled endothelial progenitor cells following carotid balloon catheter injury in rats. Biomed Pharmacother 2024; 177:117022. [PMID: 38917756 DOI: 10.1016/j.biopha.2024.117022] [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: 04/03/2024] [Revised: 06/10/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND The transplantation of endothelial progenitor cells (EPCs) has been shown to reduce neointimal hyperplasia following arterial injury. However, the efficacy of this approach is hampered by limited homing of EPCs to the injury site. Additionally, the in vivo recruitment and metabolic activity of transplanted EPCs have not been continuously monitored. METHODS EPCs were labeled with indocyanine green (ICG)-conjugated superparamagnetic iron oxide nanoparticles (SPIONs) and subjected to external magnetic field targeting to enhance their delivery to a carotid balloon injury (BI) model in Sprague-Dawley rats. Magnetic particle imaging (MPI)/ fluorescence imaging (FLI) multimodal in vivo imaging, 3D MPI/CT imaging and MPI/FLI ex vivo imaging was performed after injury. Carotid arteries were collected and analyzed for pathology and immunofluorescence staining. The paracrine effects were analyzed by enzyme-linked immunosorbent assay. RESULTS The application of a magnetic field significantly enhanced the localization and retention of SPIONs@PEG-ICG-EPCs at the site of arterial injury, as evidenced by both in vivo continuous monitoring and ex vivo by observation. This targeted delivery approach effectively inhibited neointimal hyperplasia and increased the presence of CD31-positive cells at the injury site. Moreover, serum levels of SDF-1α, VEGF, IGF-1, and TGF-β1 were significantly elevated, indicating enhanced paracrine activity. CONCLUSIONS Our findings demonstrate that external magnetic field-directed delivery of SPIONs@PEG-ICG-EPCs to areas of arterial injury can significantly enhance their therapeutic efficacy. This enhancement is likely mediated through increased paracrine signaling. These results underscore the potential of magnetically guided SPIONs@PEG-ICG-EPCs delivery as a promising strategy for treating arterial injuries.
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Affiliation(s)
- Zhongxuan Li
- Senior Department of Cardiology, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China; Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Yingqian Zhang
- Senior Department of Cardiology, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Mingrui Ma
- Medical School of Chinese PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Wei Wang
- Senior Department of Cardiology, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Hui Hui
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Beijing 100190, China; Beijing Key Laboratory of Molecular Imaging, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100080, China; National Key Laboratory of Kidney Diseases, Beijing 100853, China.
| | - Jie Tian
- CAS Key Laboratory of Molecular Imaging, Institute of Automation, Beijing 100190, China; Beijing Key Laboratory of Molecular Imaging, Beijing 100190, China; School of Engineering Medicine & School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; Key Laboratory of Big Data-Based Precision Medicine (Beihang University), Ministry of Industry and Information Technology of China, Beijing 100191, China; National Key Laboratory of Kidney Diseases, Beijing 100853, China.
| | - Yundai Chen
- Senior Department of Cardiology, The Sixth Medical Center of PLA General Hospital, Beijing 100048, China.
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Rashidi S, Bagherpour G, Abbasi-Malati Z, Khosrowshahi ND, Chegeni SA, Roozbahani G, Lotfimehr H, Sokullu E, Rahbarghazi R. Endothelial progenitor cells for fabrication of engineered vascular units and angiogenesis induction. Cell Prolif 2024:e13716. [PMID: 39051852 DOI: 10.1111/cpr.13716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/21/2024] [Accepted: 07/03/2024] [Indexed: 07/27/2024] Open
Abstract
The promotion of vascularization and angiogenesis in the grafts is a crucial phenomenon in the healing process and tissue engineering. It has been shown that stem cells, especially endothelial progenitor cells (EPCs), can stimulate blood vessel formation inside the engineered hydrogels after being transplanted into the target sites. The incorporation of EPCs into the hydrogel can last the retention time, long-term survival, on-target delivery effects, migration and differentiation into mature endothelial cells. Despite these advantages, further modifications are mandatory to increase the dynamic growth and angiogenesis potential of EPCs in in vitro and in vivo conditions. Chemical modifications of distinct composites with distinct physical properties can yield better regenerative potential and angiogenesis during several pathologies. Here, we aimed to collect recent findings related to the application of EPCs in engineered vascular grafts and/or hydrogels for improving vascularization in the grafts. Data from the present article can help us in the application of EPCs as valid cell sources in the tissue engineering of several ischemic tissues.
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Affiliation(s)
- Somayyeh Rashidi
- Department of Medical Biotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ghasem Bagherpour
- Department of Medical Biotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Zanjan Pharmaceutical Biotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Zahra Abbasi-Malati
- Student Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Sara Aghakhani Chegeni
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Golbarg Roozbahani
- Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Hamid Lotfimehr
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Emel Sokullu
- Research Center for Translational Medicine (KUTTAM), Koç University, Istanbul, Turkey
- Biophysics Department, Koç University School of Medicine, Istanbul, Turkey
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Bansal A, Singh A, Nag TC, Sharma D, Garg B, Bhatla N, Choudhury SD, Ramakrishnan L. Augmenting the Angiogenic Profile and Functionality of Cord Blood Endothelial Colony-Forming Cells by Indirect Priming with Bone-Marrow-Derived Mesenchymal Stromal Cells. Biomedicines 2023; 11:biomedicines11051372. [PMID: 37239042 DOI: 10.3390/biomedicines11051372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/13/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Cellular therapy has shown promise as a strategy for the functional restoration of ischemic tissues through promoting vasculogenesis. Therapy with endothelial progenitor cells (EPCs) has shown encouraging results in preclinical studies, but the limited engraftment, inefficient migration, and poor survival of patrolling endothelial progenitor cells at the injured site hinder its clinical utilization. These limitations can, to some extent, be overcome by co-culturing EPCs with mesenchymal stem cells (MSCs). Studies on the improvement in functional capacity of late EPCs, also referred to as endothelial colony-forming cells (ECFCs), when cultured with MSCs have mostly focused on the angiogenic potential, although migration, adhesion, and proliferation potential also determine effective physiological vasculogenesis. Alteration in angiogenic proteins with co-culturing has also not been studied. We co-cultured ECFCs with MSCs via both direct and indirect means, and studied the impact of the resultant contact-mediated and paracrine-mediated impact of MSCs over ECFCs, respectively, on the functional aspects and the angiogenic protein signature of ECFCs. Both directly and indirectly primed ECFCs significantly restored the adhesion and vasculogenic potential of impaired ECFCs, whereas indirectly primed ECFCs showed better proliferation and migratory potential than directly primed ECFCs. Additionally, indirectly primed ECFCs, in their angiogenesis proteomic signature, showed alleviated inflammation, along with the balanced expression of various growth factors and regulators of angiogenesis.
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Affiliation(s)
- Ashutosh Bansal
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Archna Singh
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Tapas Chandra Nag
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Devyani Sharma
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Bhavuk Garg
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Neerja Bhatla
- Department of Obstetrics & Gynaecology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Saumitra Dey Choudhury
- Centralized Core Research Facility, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Lakshmy Ramakrishnan
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences, New Delhi 110029, India
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Marshall AJ, Gaubert A, Kapoor A, Tan A, McIntosh E, Jang JY, Yew B, Ho JK, Blanken AE, Dutt S, Sible IJ, Li Y, Rodgers K, Nation DA. Blood-Derived Progenitor Cells Are Depleted in Older Adults with Cognitive Impairment: A Role for Vascular Resilience? J Alzheimers Dis 2023; 93:1041-1050. [PMID: 37154177 PMCID: PMC10258882 DOI: 10.3233/jad-220269] [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] [Accepted: 03/23/2023] [Indexed: 05/10/2023]
Abstract
BACKGROUND Depletion of blood-derived progenitor cells, including so called "early endothelial progenitor cells", has been observed in individuals with early stage Alzheimer's disease relative to matched older control subjects. These findings could implicate the loss of angiogenic support from hematopoietic progenitors or endothelial progenitors in cognitive dysfunction. OBJECTIVE To investigate links between progenitor cell proliferation and mild levels of cognitive dysfunction. METHODS We conducted in vitro studies of blood-derived progenitor cells using blood samples from sixty-five older adults who were free of stroke or dementia. Peripheral blood mononuclear cells from venous blood samples were cultured in CFU-Hill media and the number of colony forming units were counted after 5 days in vitro. Neuropsychological testing was administered to all participants. RESULTS Fewer colony forming units were observed in samples from older adults with a Clinical Dementia Rating global score of 0.5 versus 0. Older adults whose samples developed fewer colony forming units exhibited worse performance on neuropsychological measures of memory, executive functioning, and language ability. CONCLUSION These data suggest blood progenitors may represent a vascular resilience marker related to cognitive dysfunction in older adults.
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Affiliation(s)
- Anisa J. Marshall
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Aimee Gaubert
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
| | - Arunima Kapoor
- Department of Psychological Science, University of California, Irvine, Irvine, CA, USA
| | - Alick Tan
- Department of Clinical Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - Elissa McIntosh
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Jung Yun Jang
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
| | - Belinda Yew
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jean K. Ho
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
| | - Anna E. Blanken
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Shubir Dutt
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
- Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Isabel J. Sible
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Yanrong Li
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
| | - Kathleen Rodgers
- Center for Innovations in Brain Science, Department of Pharmacology, University of Arizona, Tucson, AZ, USA
| | - Daniel A. Nation
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
- Department of Psychological Science, University of California, Irvine, Irvine, CA, USA
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5
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Xie W, Yu J, Yin Y, Zhang X, Zheng X, Wang X. OCT4 induces EMT and promotes ovarian cancer progression by regulating the PI3K/AKT/mTOR pathway. Front Oncol 2022; 12:876257. [PMID: 36033461 PMCID: PMC9399417 DOI: 10.3389/fonc.2022.876257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/18/2022] [Indexed: 11/29/2022] Open
Abstract
Background Octamer-binding transcription factor 4 (OCT4) is a key stem cell transcription factor involved in the development of various cancers. The role of OCT4 in ovarian cancer (OC) progression and its molecular mechanism are not fully understood. Methods First, immunohistochemistry (IHC) assays of ovarian benign cyst tissues, OC tissues, and omental metastatic tissues were performed to reveal OCT4 expression profiles. We knocked down OCT4 in two OC cell lines (SKOV3 and A2780) using a lentiviral vector and performed in vitro and in vivo experiments. OCT4 was knocked down to assess the proliferation, migration, and invasion of OC cells using CCK-8, colony formation, wound healing, and Transwell assays. In addition, the nude tumor mouse model was used for in vivo study. Mechanistically, we demonstrated that OCT4 influenced protein expression in the phosphoinositol 3-kinase (PI3K)/AKT/mTOR pathway and epithelial-mesenchymal transition (EMT)-related proteins by Western blotting and immunofluorescence (IF) assays. The interaction between OCT4 and p-AKT was further confirmed by coimmunoprecipitation (CoIP) assays. Importantly, AKT activation by its activator SC79 reversed the biological functions of OCT4 knockdown. Results OCT4 expression was significantly upregulated in OC samples and metastatic tissues. OCT4 knockdown notably inhibited the proliferation, migration, and invasion of OC cells in vitro and in vivo. Moreover, the expression of p-PI3K, p-AKT, and p-mTOR was downregulated after OCT4 knockdown. An AKT agonist reversed the effect of OCT4 knockdown on OC cells. EMT in OC samples was enhanced by OCT4. Conclusions Our study shows that OCT4 promotes the proliferation, migration, and invasion of OC cells by participating in the PI3K/AKT/mTOR signaling axis, suggesting that it could serve as a potential therapeutic target for OC patients.
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Wang X, Wang R, Jiang L, Xu Q, Guo X. Endothelial repair by stem and progenitor cells. J Mol Cell Cardiol 2021; 163:133-146. [PMID: 34743936 DOI: 10.1016/j.yjmcc.2021.10.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/20/2021] [Accepted: 10/26/2021] [Indexed: 12/19/2022]
Abstract
The integrity of the endothelial barrier is required to maintain vascular homeostasis and fluid balance between the circulatory system and surrounding tissues and to prevent the development of vascular disease. However, the origin of the newly developed endothelial cells is still controversial. Stem and progenitor cells have the potential to differentiate into endothelial cell lines and stimulate vascular regeneration in a paracrine/autocrine fashion. The one source of new endothelial cells was believed to come from the bone marrow, which was challenged by the recent findings. By administration of new techniques, including genetic cell lineage tracing and single cell RNA sequencing, more solid data were obtained that support the concept of stem/progenitor cells for regenerating damaged endothelium. Specifically, it was found that tissue resident endothelial progenitors located in the vessel wall were crucial for endothelial repair. In this review, we summarized the latest advances in stem and progenitor cell research in endothelial regeneration through findings from animal models and discussed clinical data to indicate the future direction of stem cell therapy.
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Affiliation(s)
- Xuyang Wang
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ruilin Wang
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Liujun Jiang
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qingbo Xu
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Xiaogang Guo
- Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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7
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Endothelial Progenitor Cell-Derived Extracellular Vesicles: Potential Therapeutic Application in Tissue Repair and Regeneration. Int J Mol Sci 2021; 22:ijms22126375. [PMID: 34203627 PMCID: PMC8232313 DOI: 10.3390/ijms22126375] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/01/2021] [Accepted: 06/11/2021] [Indexed: 12/19/2022] Open
Abstract
Recently, many studies investigated the role of a specific type of stem cell named the endothelial progenitor cell (EPC) in tissue regeneration and repair. EPCs represent a heterogeneous population of mononuclear cells resident in the adult bone marrow. EPCs can migrate and differentiate in injured sites or act in a paracrine way. Among the EPCs’ secretome, extracellular vesicles (EVs) gained relevance due to their possible use for cell-free biological therapy. They are more biocompatible, less immunogenic, and present a lower oncological risk compared to cell-based options. EVs can efficiently pass the pulmonary filter and deliver to target tissues different molecules, such as micro-RNA, growth factors, cytokines, chemokines, and non-coding RNAs. Their effects are often analogous to their cellular counterparts, and EPC-derived EVs have been tested in vitro and on animal models to treat several medical conditions, including ischemic stroke, myocardial infarction, diabetes, and acute kidney injury. EPC-derived EVs have also been studied for bone, brain, and lung regeneration and as carriers for drug delivery. This review will discuss the pre-clinical evidence regarding EPC-derived EVs in the different disease models and regenerative settings. Moreover, we will discuss the translation of their use into clinical practice and the possible limitations of this process.
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8
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Yu J, Du Q, Hu M, Zhang J, Chen J. Endothelial Progenitor Cells in Moyamoya Disease: Current Situation and Controversial Issues. Cell Transplant 2021; 29:963689720913259. [PMID: 32193953 PMCID: PMC7444216 DOI: 10.1177/0963689720913259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Due to the lack of animal models and difficulty in obtaining specimens, the study of pathogenesis of moyamoya disease (MMD) almost stagnated. In recent years, endothelial progenitor cells (EPCs) have attracted more and more attention in vascular diseases due to their important role in neovascularization. With the aid of paradigms and methods in cardiovascular diseases research, people began to explore the role of EPCs in the processing of MMD. In the past decade, studies have shown that abnormalities in cell amounts and functions of EPCs were closely related to the vascular pathological changes in MMD. However, the lack of consistent criteria, such as isolation, cultivation, and identification standards, is also blocking the way forward. The goal of this review is to provide an overview of the current situation and controversial issues relevant to studies about EPCs in the pathogenesis and etiology of MMD.
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Affiliation(s)
- Jin Yu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qian Du
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Miao Hu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jianjian Zhang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan, China
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Abdelgawad ME, Desterke C, Uzan G, Naserian S. Single-cell transcriptomic profiling and characterization of endothelial progenitor cells: new approach for finding novel markers. Stem Cell Res Ther 2021; 12:145. [PMID: 33627177 PMCID: PMC7905656 DOI: 10.1186/s13287-021-02185-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/24/2021] [Indexed: 12/14/2022] Open
Abstract
Background Endothelial progenitor cells (EPCs) are promising candidates for the cellular therapy of peripheral arterial and cardiovascular diseases. However, hitherto there is no specific marker(s) defining precisely EPCs. Herein, we are proposing a new in silico approach for finding novel EPC markers. Methods We assembled five groups of chosen EPC-related genes/factors using PubMed literature and Gene Ontology databases. This shortened database of EPC factors was fed into publically published transcriptome matrix to compare their expression between endothelial colony-forming cells (ECFCs), HUVECs, and two adult endothelial cell types (ECs) from the skin and adipose tissue. Further, the database was used for functional enrichment on Mouse Phenotype database and protein-protein interaction network analyses. Moreover, we built a digital matrix of healthy donors’ PBMCs (33 thousand single-cell transcriptomes) and analyzed the expression of these EPC factors. Results Transcriptome analyses showed that BMP2, 4, and ephrinB2 were exclusively highly expressed in EPCs; the expression of neuropilin-1 and VEGF-C were significantly higher in EPCs and HUVECs compared with other ECs; Notch 1 was highly expressed in EPCs and skin-ECs; MIR21 was highly expressed in skin-ECs; PECAM-1 was significantly higher in EPCs and adipose ECs. Moreover, functional enrichment of EPC-related genes on Mouse Phenotype and STRING protein database has revealed significant relations between chosen EPC factors and endothelial and vascular functions, development, and morphogenesis, where ephrinB2, BMP2, and BMP4 were highly expressed in EPCs and were connected to abnormal vascular functions. Single-cell RNA-sequencing analyses have revealed that among the EPC-regulated markers in transcriptome analyses, (i) ICAM1 and Endoglin were weekly expressed in the monocyte compartment of the peripheral blood; (ii) CD163 and CD36 were highly expressed in the CD14+ monocyte compartment whereas CSF1R was highly expressed in the CD16+ monocyte compartment, (iii) L-selectin and IL6R were globally expressed in the lymphoid/myeloid compartments, and (iv) interestingly, PLAUR/UPAR and NOTCH2 were highly expressed in both CD14+ and CD16+ monocytic compartments. Conclusions The current study has identified novel EPC markers that could be used for better characterization of EPC subpopulation in adult peripheral blood and subsequent usage of EPCs for various cell therapy and regenerative medicine applications.
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Affiliation(s)
- Mohamed Essameldin Abdelgawad
- Biochemistry & Molecular Biotechnology Division, Chemistry Department, Faculty of Science; Innovative Cellular Microenvironment Optimization Platform (ICMOP), Helwan University, Cairo, Egypt. .,Inserm UMR-S-MD 1197, Hôpital Paul Brousse - Bâtiment Lavoisier, 12-14 avenue Paul Vaillant Couturier, 94800, Villejuif, France. .,Paris-Saclay University, Villejuif, France.
| | - Christophe Desterke
- Paris-Saclay University, Villejuif, France.,Inserm UMR-S-MD A9, Hôpital Paul Brousse, Villejuif, France
| | - Georges Uzan
- Inserm UMR-S-MD 1197, Hôpital Paul Brousse - Bâtiment Lavoisier, 12-14 avenue Paul Vaillant Couturier, 94800, Villejuif, France.,Paris-Saclay University, Villejuif, France
| | - Sina Naserian
- Inserm UMR-S-MD 1197, Hôpital Paul Brousse - Bâtiment Lavoisier, 12-14 avenue Paul Vaillant Couturier, 94800, Villejuif, France. .,Paris-Saclay University, Villejuif, France. .,CellMedEx, Saint Maur des Fossés, France.
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10
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Vascular Remodeling in Moyamoya Angiopathy: From Peripheral Blood Mononuclear Cells to Endothelial Cells. Int J Mol Sci 2020; 21:ijms21165763. [PMID: 32796702 PMCID: PMC7460840 DOI: 10.3390/ijms21165763] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/30/2020] [Accepted: 08/06/2020] [Indexed: 12/13/2022] Open
Abstract
The pathophysiological mechanisms of Moyamoya angiopathy (MA), which is a rare cerebrovascular condition characterized by recurrent ischemic/hemorrhagic strokes, are still largely unknown. An imbalance of vasculogenic/angiogenic mechanisms has been proposed as one possible disease aspect. Circulating endothelial progenitor cells (cEPCs) have been hypothesized to contribute to vascular remodeling of MA, but it remains unclear whether they might be considered a disease effect or have a role in disease pathogenesis. The aim of the present study was to provide a morphological, phenotypical, and functional characterization of the cEPCs from MA patients to uncover their role in the disease pathophysiology. cEPCs were identified from whole blood as CD45dimCD34+CD133+ mononuclear cells. Morphological, biochemical, and functional assays were performed to characterize cEPCs. A significant reduced level of cEPCs was found in blood samples collected from a homogeneous group of adult (mean age 46.86 ± 11.7; 86.36% females), Caucasian, non-operated MA patients with respect to healthy donors (HD; p = 0.032). Since no difference in cEPC characteristics and functionality was observed between MA patients and HD, a defective recruitment mechanism could be involved in the disease pathophysiology. Collectively, our results suggest that cEPC level more than endothelial progenitor cell (EPC) functionality seems to be a potential marker of MA. The validation of our results on a larger population and the correlation with clinical data as well as the use of more complex cellular model could help our understanding of EPC role in MA pathophysiology.
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11
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Liao G, Zheng K, Shorr R, Allan DS. Human endothelial colony-forming cells in regenerative therapy: A systematic review of controlled preclinical animal studies. Stem Cells Transl Med 2020; 9:1344-1352. [PMID: 32681814 PMCID: PMC7581447 DOI: 10.1002/sctm.20-0141] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/11/2020] [Accepted: 05/24/2020] [Indexed: 12/11/2022] Open
Abstract
Endothelial colony‐forming cells (ECFCs) hold significant promise as candidates for regenerative therapy of vascular injury. Existing studies remain largely preclinical and exhibit marked design heterogeneity. A systematic review of controlled preclinical trials of human ECFCs is needed to guide future study design and to accelerate clinical translation. A systematic search of Medline and EMBASE on 1 April 2019 returned 3131 unique entries of which 66 fulfilled the inclusion criteria. Most studies used ECFCs derived from umbilical cord or adult peripheral blood. Studies used genetically modified immunodeficient mice (n = 52) and/or rats (n = 16). ECFC phenotypes were inconsistently characterized. While >90% of studies used CD31+ and CD45−, CD14− was demonstrated in 73% of studies, CD146+ in 42%, and CD10+ in 35%. Most disease models invoked ischemia. Peripheral vascular ischemia (n = 29), central nervous system ischemia (n = 14), connective tissue injury (n = 10), and cardiovascular ischemia and reperfusion injury (n = 7) were studied most commonly. Studies showed predominantly positive results; only 13 studies reported ≥1 outcome with null results, three reported only null results, and one reported harm. Quality assessment with SYRCLE revealed potential sources of bias in most studies. Preclinical ECFC studies are associated with benefit across several ischemic conditions in animal models, although combining results is limited by marked heterogeneity in study design. In particular, characterization of ECFCs varied and aspects of reporting introduced risk of bias in most studies. More studies with greater focus on standardized cell characterization and consistency of the disease model are needed.
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Affiliation(s)
- Gary Liao
- Clinical Epidemiology and Regenerative Medicine Programs, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Katina Zheng
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Risa Shorr
- Information Services, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - David S Allan
- Clinical Epidemiology and Regenerative Medicine Programs, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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12
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Jia J, Jeon EJ, Li M, Richards DJ, Lee S, Jung Y, Barrs RW, Coyle R, Li X, Chou JC, Yost MJ, Gerecht S, Cho SW, Mei Y. Evolutionarily conserved sequence motif analysis guides development of chemically defined hydrogels for therapeutic vascularization. SCIENCE ADVANCES 2020; 6:eaaz5894. [PMID: 32923589 PMCID: PMC7455498 DOI: 10.1126/sciadv.aaz5894] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/10/2020] [Indexed: 05/04/2023]
Abstract
Biologically active ligands (e.g., RGDS from fibronectin) play critical roles in the development of chemically defined biomaterials. However, recent decades have shown only limited progress in discovering novel extracellular matrix-protein-derived ligands for translational applications. Through motif analysis of evolutionarily conserved RGD-containing regions in laminin (LM) and peptide-functionalized hydrogel microarray screening, we identified a peptide (a1) that showed superior supports for endothelial cell (EC) functions. Mechanistic studies attributed the results to the capacity of a1 engaging both LM- and Fn-binding integrins. RNA sequencing of ECs in a1-functionalized hydrogels showed ~60% similarities with Matrigel in "vasculature development" gene ontology terms. Vasculogenesis assays revealed the capacity of a1-formulated hydrogels to improve EC network formation. Injectable alginates functionalized with a1 and MMPQK (a vascular endothelial growth factor-mimetic peptide with a matrix metalloproteinase-degradable linker) increased blood perfusion and functional recovery over decellularized extracellular matrix and (RGDS + MMPQK)-functionalized hydrogels in an ischemic hindlimb model, illustrating the power of this approach.
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Affiliation(s)
- Jia Jia
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Eun Je Jeon
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
- Department of Biomaterials Science and Engineering, Yonsei University, Seoul, Republic of Korea
| | - Mei Li
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Cardiology, Medical University of South Carolina, Charleston, SC, USA
| | - Dylan J. Richards
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Soojin Lee
- Program in Nanoscience and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Youngmee Jung
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, Republic of Korea
| | - Ryan W. Barrs
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Robert Coyle
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Xiaoyang Li
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, Medical University of South Carolina, Charleston, SC, USA
- Ocean University of China, School of Medicine and Pharmacy, Qingdao, Shandong, China
| | - James C. Chou
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, Medical University of South Carolina, Charleston, SC, USA
| | - Michael J. Yost
- Department of Surgery, College of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering, The Institute for NanoBioTechnology, and Johns Hopkins Physical Sciences–Oncology Center, The Johns Hopkins University, Baltimore, MD, USA
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Ying Mei
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
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13
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Xu H, Pumiglia K, LaFlamme SE. Laminin-511 and α6 integrins regulate the expression of CXCR4 to promote endothelial morphogenesis. J Cell Sci 2020; 133:jcs246595. [PMID: 32409567 DOI: 10.1242/jcs.246595] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/11/2020] [Indexed: 12/25/2022] Open
Abstract
During angiogenesis, endothelial cells engage components of the extracellular matrix through integrin-mediated adhesion. Endothelial expression of laminin-411 and laminin-511 is known to promote vessel stability. However, little is known about the contribution of these laminins to endothelial morphogenesis. We used two organotypic cell culture angiogenesis assays, in conjunction with RNAi approaches, to demonstrate that depletion of either the α4 chain of laminin-411 (LAMA4) or the α5 chain of laminin-511 (LAMA5) from endothelial cells inhibits sprouting and tube formation. Depletion of α6 (ITGA6) integrins resulted in similar phenotypes. Gene expression analysis indicated that loss of either laminin-511 or α6 integrins inhibited the expression of CXCR4, a gene previously associated with angiogenic endothelial cells. Pharmacological or RNAi-dependent inhibition of CXCR4 suppressed endothelial sprouting and morphogenesis. Importantly, expression of recombinant CXCR4 rescued endothelial morphogenesis when α6 integrin expression was inhibited. Additionally, the depletion of α6 integrins from established tubes resulted in the loss of tube integrity and laminin-511. Taken together, our results indicate that α6 integrins and laminin-511 can promote endothelial morphogenesis by regulating the expression of CXCR4 and suggest that the α6-dependent deposition of laminin-511 protects the integrity of established endothelial tubes.
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Affiliation(s)
- Hao Xu
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany NY 12208, USA
| | - Kevin Pumiglia
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany NY 12208, USA
| | - Susan E LaFlamme
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany NY 12208, USA
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14
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Lee NG, Jeung IC, Heo SC, Song J, Kim W, Hwang B, Kwon MG, Kim YG, Lee J, Park JG, Shin MG, Cho YL, Son MY, Bae KH, Lee SH, Kim JH, Min JK. Ischemia-induced Netrin-4 promotes neovascularization through endothelial progenitor cell activation via Unc-5 Netrin receptor B. FASEB J 2019; 34:1231-1246. [PMID: 31914695 DOI: 10.1096/fj.201900866rr] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 10/31/2019] [Accepted: 11/11/2019] [Indexed: 11/11/2022]
Abstract
Endothelial progenitor cells (EPCs) promote neovascularization and tissue repair by migrating to vascular injury sites; therefore, factors that enhance EPC homing to damaged tissues are of interest. Here, we provide evidence of the prominent role of the Netrin-4 (NTN4)-Unc-5 Netrin receptor B (UNC5B) axis in EPC-specific promotion of ischemic neovascularization. Our results showed that NTN4 promoted the proliferation, chemotactic migration, and paracrine effects of small EPCs (SEPCs) and significantly increased the incorporation of large EPCs (LEPCs) into tubule networks. Additionally, NTN4 prominently augmented neovascularization in mice with hindlimb ischemia by increasing the homing of exogenously transplanted EPCs to the ischemic limb and incorporating EPCs into vessels. Moreover, silencing of UNC5B, an NTN4 receptor, abrogated the NTN4-induced cellular activities of SEPCs in vitro and blood-flow recovery and neovascularization in vivo in ischemic muscle by reducing EPC homing and incorporation. These findings suggest NTN4 as an EPC-based therapy for treating angiogenesis-dependent diseases.
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Affiliation(s)
- Na Geum Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea.,Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - In Cheul Jeung
- Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Soon Chul Heo
- Department of Physiology, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Jinhoi Song
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Wooil Kim
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea.,Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - Byungtae Hwang
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Min-Gi Kwon
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea.,Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - Yeon-Gu Kim
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Jangwook Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Jong-Gil Park
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Min-Gyeong Shin
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Young-Lai Cho
- Research Center for Metabolic Regulation, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Mi-Young Son
- Stem Cell Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Kwang-Hee Bae
- Research Center for Metabolic Regulation, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Sang-Hyun Lee
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea
| | - Jae Ho Kim
- Department of Physiology, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Jeong-Ki Min
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, South Korea.,Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
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15
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Jangra A, Choi SA, Koh EJ, Moon YJ, Wang KC, Phi JH, Lee JY, Kim SK. Panobinostat, a histone deacetylase inhibitor, rescues the angiogenic potential of endothelial colony-forming cells in moyamoya disease. Childs Nerv Syst 2019; 35:823-831. [PMID: 30815722 DOI: 10.1007/s00381-019-04099-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/18/2019] [Indexed: 11/29/2022]
Abstract
PURPOSE Moyamoya disease (MMD) is one of the most common causes of pediatric stroke. We found defective angiogenic function and downregulation of retinaldehyde dehydrogenase 2 (RALDH2) in MMD endothelial colony-forming cells (ECFCs). Downregulation of RALDH2 mRNA was caused by decreased binding of acetyl-histone H3 (Ac-H3) to the RALDH2 promoter. In this study, we evaluated the feasibility of using a histone deacetylase (HDAC) inhibitor, panobinostat, to upregulate RALDH2 expression and restore the angiogenic potential of MMD ECFCs. METHODS ECFCs from healthy normal controls and patients with MMD were isolated and characterized. After panobinostat treatment, western blot, tube formation, and chromatin immunoprecipitation (ChIP) assays were conducted in vitro. A matrigel plug assay was performed in vivo. RESULTS Panobinostat increased the levels of Ac-H3 and Ac-H4 in both normal and MMD ECFCs but was much more effective in MMD ECFCs. Increased expression of RALDH2 by panobinostat was observed only in MMD ECFCs. Panobinostat increased the tube formation of both normal and MMD ECFCs in vitro and in vivo, but the effect was greater with MMD ECFCs. CONCLUSIONS We demonstrated that panobinostat increases the angiogenic ability of MMD ECFCs by regulating RALDH2 acetylation. Our results suggest that panobinostat might be a potent therapeutic option for MMD patients.
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Affiliation(s)
- Anshika Jangra
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Seung Ah Choi
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Eun Jung Koh
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Youn Joo Moon
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Kyu-Chang Wang
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Ji Hoon Phi
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Ji Yeoun Lee
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea.,Department of Anatomy, Seoul National University College of Medicine, Seoul, South Korea
| | - Seung-Ki Kim
- Division of Pediatric Neurosurgery, Seoul Pediatric Clinical Neuroscience Center, Seoul National University Children's Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Republic of Korea. .,Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea.
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16
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Keighron C, Lyons CJ, Creane M, O'Brien T, Liew A. Recent Advances in Endothelial Progenitor Cells Toward Their Use in Clinical Translation. Front Med (Lausanne) 2018; 5:354. [PMID: 30619864 PMCID: PMC6305310 DOI: 10.3389/fmed.2018.00354] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 12/03/2018] [Indexed: 12/28/2022] Open
Abstract
Since the discovery of Endothelial Progenitor Cells (EPC) by Asahara and colleagues in 1997, an increasing number of preclinical studies have shown that EPC based therapy is feasible, safe, and efficacious in multiple disease states. Subsequently, this has led to several, mainly early phase, clinical trials demonstrating the feasibility and safety profile of EPC therapy, with the suggestion of efficacy in several conditions including ischemic heart disease, pulmonary arterial hypertension and decompensated liver cirrhosis. Despite the use of the common term “EPC,” the characteristics, manufacturing methods and subset of the cell type used in these studies often vary significantly, rendering clinical translation challenging. It has recently been acknowledged that the true EPC is the endothelial colony forming cells (ECFC). The objective of this review was to summarize and critically appraise the registered and published clinical studies using the term “EPC,” which encompasses a heterogeneous cell population, as a therapeutic agent. Furthermore, the preclinical data using ECFC from the PubMed and Web of Science databases were searched and analyzed. We noted that despite the promising effect of ECFC on vascular regeneration, no clinical study has stemmed from these preclinical studies. We showed that there is a lack of information registered on www.clinicaltrials.gov for EPC clinical trials, specifically on cell culture methods. We also highlighted the importance of a detailed definition of the cell type used in EPC clinical trials to facilitate comparisons between trials and better understanding of the potential clinical benefit of EPC based therapy. We concluded our review by discussing the potential and limitations of EPC based therapy in clinical settings.
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Affiliation(s)
- Cameron Keighron
- Regenerative Medicine Institute, National Centre for Biomedical Engineering Science and Centre for Research in Medical Devices, National University of Ireland, Galway, Ireland
| | - Caomhán J Lyons
- Regenerative Medicine Institute, National Centre for Biomedical Engineering Science and Centre for Research in Medical Devices, National University of Ireland, Galway, Ireland
| | - Michael Creane
- Regenerative Medicine Institute, National Centre for Biomedical Engineering Science and Centre for Research in Medical Devices, National University of Ireland, Galway, Ireland
| | - Timothy O'Brien
- Regenerative Medicine Institute, National Centre for Biomedical Engineering Science and Centre for Research in Medical Devices, National University of Ireland, Galway, Ireland
| | - Aaron Liew
- Regenerative Medicine Institute, National Centre for Biomedical Engineering Science and Centre for Research in Medical Devices, National University of Ireland, Galway, Ireland
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17
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Paschalaki KE, Randi AM. Recent Advances in Endothelial Colony Forming Cells Toward Their Use in Clinical Translation. Front Med (Lausanne) 2018; 5:295. [PMID: 30406106 PMCID: PMC6205967 DOI: 10.3389/fmed.2018.00295] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/28/2018] [Indexed: 12/17/2022] Open
Abstract
The term “Endothelial progenitor cell” (EPC) has been used to describe multiple cell populations that express endothelial surface makers and promote vascularisation. However, the only population that has all the characteristics of a real “EPC” is the Endothelial Colony Forming Cells (ECFC). ECFC possess clonal proliferative potential, display endothelial and not myeloid cell surface markers, and exhibit pronounced postnatal vascularisation ability in vivo. ECFC have been used to investigate endothelial molecular dysfunction in several diseases, as they give access to endothelial cells from patients in a non-invasive way. ECFC also represent a promising tool for revascularization of damaged tissue. Here we review the translational applications of ECFC research. We discuss studies which have used ECFC to investigate molecular endothelial abnormalities in several diseases and review the evidence supporting the use of ECFC for autologous cell therapy, gene therapy and tissue regeneration. Finally, we discuss ways to improve the therapeutic efficacy of ECFC in clinical applications, as well as the challenges that must be overcome to use ECFC in clinical trials for regenerative approaches.
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Affiliation(s)
- Koralia E Paschalaki
- Vascular Sciences, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Anna M Randi
- Vascular Sciences, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
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18
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Shear stress: An essential driver of endothelial progenitor cells. J Mol Cell Cardiol 2018; 118:46-69. [PMID: 29549046 DOI: 10.1016/j.yjmcc.2018.03.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/08/2018] [Accepted: 03/09/2018] [Indexed: 02/06/2023]
Abstract
The blood flow through vessels produces a tangential, or shear, stress sensed by their innermost layer (i.e., endothelium) and representing a major hemodynamic force. In humans, endothelial repair and blood vessel formation are mainly performed by circulating endothelial progenitor cells (EPCs) characterized by a considerable expression of vascular endothelial growth factor receptor 2 (VEGFR2), CD34, and CD133, pronounced tube formation activity in vitro, and strong reendothelialization or neovascularization capacity in vivo. EPCs have been proposed as a promising agent to induce reendothelialization of injured arteries, neovascularization of ischemic tissues, and endothelialization or vascularization of bioartificial constructs. A number of preconditioning approaches have been suggested to improve the regenerative potential of EPCs, including the use of biophysical stimuli such as shear stress. However, in spite of well-defined influence of shear stress on mature endothelial cells (ECs), articles summarizing how it affects EPCs are lacking. Here we discuss the impact of shear stress on homing, paracrine effects, and differentiation of EPCs. Unidirectional laminar shear stress significantly promotes homing of circulating EPCs to endothelial injury sites, induces anti-thrombotic and anti-atherosclerotic phenotype of EPCs, increases their capability to form capillary-like tubes in vitro, and enhances differentiation of EPCs into mature ECs in a dose-dependent manner. These effects are mediated by VEGFR2, Tie2, Notch, and β1/3 integrin signaling and can be abrogated by means of complementary siRNA/shRNA or selective pharmacological inhibitors of the respective proteins. Although the testing of sheared EPCs for vascular tissue engineering or regenerative medicine applications is still an unaccomplished task, favorable effects of unidirectional laminar shear stress on EPCs suggest its usefulness for their preconditioning.
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19
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Chen WC, Chung CH, Lu YC, Wu MH, Chou PH, Yen JY, Lai YW, Wang GS, Liu SC, Cheng JK, Wu YJ, Yeh HI, Wang LY, Wang SW. BMP-2 induces angiogenesis by provoking integrin α6 expression in human endothelial progenitor cells. Biochem Pharmacol 2018; 150:256-266. [PMID: 29458046 DOI: 10.1016/j.bcp.2018.02.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 02/14/2018] [Indexed: 11/18/2022]
Abstract
Bone morphogenetic protein-2 (BMP-2) is a multifunctional cytokine, capable of governing several cellular functions, including proliferation, motility, differentiation, and angiogenesis. Circulating endothelial progenitor cells (EPCs) have been shown to facilitate tissue repair, postnatal neovascularization, and tumor associated angiogenesis. Nevertheless, the impact of BMP-2 on angiogenesis of human EPCs has largely remained a mystery. In this study, we found that BMP-2 promoted cell migration and tube formation of EPCs in a concentration-dependent manner, indicating BMP-2 induced in vitro angiogenesis in human EPCs. Furthermore, BMP-2 significantly increased microvessel formation in Matrigel plug assay, and BMP-2 antagonist noggin prevented BMP-2-induced in vivo angiogenesis. Mechanistic investigations showed BMP-2 profoundly induced the expression of Id-1 and integrin α6 as well as EPCs angiogenesis by activating PI3K/Akt and MEK/ERK signaling pathways. Moreover, knockdown of Id-1 and integrin α6 by siRNA transfection obviously attenuated BMP-2-indueced tube formation of EPCs. These results suggest that BMP-2 promotes angiogenesis in human EPCs through the activation of PI3K/Akt, MEK/ERK, and Id-1/integrin α6 signaling cascades. This is the first demonstration that BMP-2 exhibits the angiogenesis property on human EPCs. BMP-2 might serve as the potential therapeutic target for treatment of angiogenesis-related diseases.
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Affiliation(s)
- Wei-Cheng Chen
- Department of Orthopaedics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Ching-Hu Chung
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Yung-Chang Lu
- Department of Orthopaedics, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Min-Huan Wu
- Sports Recreation and Health Management Continuing Studies, Tunghai University, Taichung, Taiwan; Physical Education Office, Tunghai University, Taichung, Taiwan
| | - Po-Hsun Chou
- Department of Orthopaedics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Juei-Yu Yen
- Department of Orthopaedics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yu-Wei Lai
- Division of Urology, Taipei City Hospital Renai Branch, Taiwan; Department of Urology, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Guo-Shou Wang
- Department of Orthopaedics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Shih-Chia Liu
- Department of Orthopaedics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Jen-Kun Cheng
- Department of Orthopaedics, Mackay Memorial Hospital, Taipei, Taiwan; Department of Anesthesiology, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yih-Jer Wu
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Hung-I Yeh
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Li-Yu Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.
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20
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Suffee N, Le Visage C, Hlawaty H, Aid-Launais R, Vanneaux V, Larghero J, Haddad O, Oudar O, Charnaux N, Sutton A. Pro-angiogenic effect of RANTES-loaded polysaccharide-based microparticles for a mouse ischemia therapy. Sci Rep 2017; 7:13294. [PMID: 29038476 PMCID: PMC5643514 DOI: 10.1038/s41598-017-13444-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/09/2017] [Indexed: 12/20/2022] Open
Abstract
Peripheral arterial disease results from the chronic obstruction of arteries leading to critical hindlimb ischemia. The aim was to develop a new therapeutic strategy of revascularization by using biodegradable and biocompatible polysaccharides-based microparticles (MP) to treat the mouse hindlimb ischemia. For this purpose, we deliver the pro-angiogenic chemokine Regulated upon Activation, Normal T-cell Expressed and Secreted (RANTES)/CCL5 in the mouse ischemic hindlimb, in solution or incorporated into polysaccharide-based microparticles. We demonstrate that RANTES-loaded microparticles improve the clinical score, induce the revascularization and the muscle regeneration in injured mice limb. To decipher the mechanisms underlying RANTES effects in vivo, we demonstrate that RANTES increases the spreading, the migration of human endothelial progenitor cells (EPC) and the formation of vascular network. The main receptors of RANTES i.e. CCR5, syndecan-4 and CD44 expressed at endothelial progenitor cell surface are involved in RANTES-induced in vitro biological effects on EPC. By using two RANTES mutants, [E66A]-RANTES with impaired ability to oligomerize, and [44AANA47]-RANTES mutated in the main RANTES-glycosaminoglycan binding site, we demonstrate that both chemokine oligomerization and binding site to glycosaminoglycans are essential for RANTES-induced angiogenesis in vitro. Herein we improved the muscle regeneration and revascularization after RANTES-loaded MP local injection in mice hindlimb ischemia.
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Affiliation(s)
- N Suffee
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - C Le Visage
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
| | - H Hlawaty
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - R Aid-Launais
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - V Vanneaux
- APHP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, F-75475, Paris, France.,Inserm UMR1160 et CIC de Biothérapies, Institut Universitaire d'Hématologie, Hôpital Saint-Louis, Paris, France
| | - J Larghero
- APHP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, F-75475, Paris, France.,Inserm UMR1160 et CIC de Biothérapies, Institut Universitaire d'Hématologie, Hôpital Saint-Louis, Paris, France
| | - O Haddad
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - O Oudar
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - N Charnaux
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France.,Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, Bondy, France
| | - A Sutton
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France. .,Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, Bondy, France.
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21
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Fraineau S, Palii CG, McNeill B, Ritso M, Shelley WC, Prasain N, Chu A, Vion E, Rieck K, Nilufar S, Perkins TJ, Rudnicki MA, Allan DS, Yoder MC, Suuronen EJ, Brand M. Epigenetic Activation of Pro-angiogenic Signaling Pathways in Human Endothelial Progenitors Increases Vasculogenesis. Stem Cell Reports 2017; 9:1573-1587. [PMID: 29033304 PMCID: PMC5830028 DOI: 10.1016/j.stemcr.2017.09.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 11/25/2022] Open
Abstract
Human endothelial colony-forming cells (ECFCs) represent a promising source of adult stem cells for vascular repair, yet their regenerative capacity is limited. Here, we set out to understand the molecular mechanism restricting the repair function of ECFCs. We found that key pro-angiogenic pathways are repressed in ECFCs due to the presence of bivalent (H3K27me3/H3K4me3) epigenetic marks, which decreases the cells' regenerative potential. Importantly, ex vivo treatment with a combination of epigenetic drugs that resolves bivalent marks toward the transcriptionally active H3K4me3 state leads to the simultaneous activation of multiple pro-angiogenic signaling pathways (VEGFR, CXCR4, WNT, NOTCH, SHH). This in turn results in improved capacity of ECFCs to form capillary-like networks in vitro and in vivo. Furthermore, restoration of perfusion is accelerated upon transplantation of drug-treated ECFCs in a model of hindlimb ischemia. Thus, ex vivo treatment with epigenetic drugs increases the vascular repair properties of ECFCs through transient activation of pro-angiogenic signaling pathways. Pro-angiogenic pathways are maintained in a poised state in ECFCs Epigenetic drugs resolve bivalently marked genes toward an active state in ECFCs Treatment with epigenetic drugs activates multiple pro-angiogenic pathways in ECFCs Ex vivo treatment with epigenetic drugs increases ECFC-mediated vasculogenesis
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Affiliation(s)
- Sylvain Fraineau
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada; University of Ottawa, Department of Cellular and Molecular Medicine, Ottawa, ON K1H8L6, Canada; Ottawa Institute of Systems Biology, Ottawa, ON K1H8M5, Canada
| | - Carmen G Palii
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada
| | - Brian McNeill
- Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, ON K1Y4W7, Canada
| | - Morten Ritso
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada
| | - William C Shelley
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Nutan Prasain
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Alphonse Chu
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada
| | - Elodie Vion
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada
| | - Kristy Rieck
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada
| | - Sharmin Nilufar
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada
| | - Theodore J Perkins
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada; University of Ottawa, Department of Biochemistry, Microbiology, Immunology, Ottawa, ON K1H8L6, Canada
| | - Michael A Rudnicki
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada; University of Ottawa, Department of Cellular and Molecular Medicine, Ottawa, ON K1H8L6, Canada
| | - David S Allan
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada
| | - Mervin C Yoder
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Erik J Suuronen
- University of Ottawa, Department of Cellular and Molecular Medicine, Ottawa, ON K1H8L6, Canada; Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, ON K1Y4W7, Canada
| | - Marjorie Brand
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, General Hospital, Mailbox 511, 501 Smyth Road, Ottawa, ON K1H8L6, Canada; University of Ottawa, Department of Cellular and Molecular Medicine, Ottawa, ON K1H8L6, Canada; Ottawa Institute of Systems Biology, Ottawa, ON K1H8M5, Canada.
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22
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Hookham MB, Ali IHA, O'Neill CL, Hackett E, Lambe MH, Schmidt T, Medina RJ, Chamney S, Rao B, McLoone E, Sweet D, Stitt AW, Brazil DP. Hypoxia-induced responses by endothelial colony-forming cells are modulated by placental growth factor. Stem Cell Res Ther 2016; 7:173. [PMID: 27899144 PMCID: PMC5129608 DOI: 10.1186/s13287-016-0430-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/10/2016] [Accepted: 10/26/2016] [Indexed: 01/13/2023] Open
Abstract
Background Endothelial colony-forming cells (ECFCs), also termed late outgrowth endothelial cells, are a well-defined circulating endothelial progenitor cell type with an established role in vascular repair. ECFCs have clear potential for cell therapy to treat ischaemic disease, although the precise mechanism(s) underlying their response to hypoxia remains ill-defined. Methods In this study, we isolated ECFCs from umbilical cord blood and cultured them on collagen. We defined the response of ECFCs to 1% O2 exposure at acute and chronic time points. Results In response to low oxygen, changes in ECFC cell shape, proliferation, size and cytoskeleton phenotype were detected. An increase in the number of senescent ECFCs also occurred as a result of long-term culture in 1% O2. Low oxygen exposure altered ECFC migration and tube formation in Matrigel®. Increases in angiogenic factors secreted from ECFCs exposed to hypoxia were also detected, in particular, after treatment with placental growth factor (PlGF). Exposure of cells to agents that stabilise hypoxia-inducible factors such as dimethyloxalylglycine (DMOG) also increased PlGF levels. Conditioned medium from both hypoxia-treated and DMOG-treated cells inhibited ECFC tube formation. This effect was reversed by the addition of PlGF neutralising antibody to the conditioned medium, confirming the direct role of PlGF in this effect. Conclusions This study deepens our understanding of the response of ECFCs to hypoxia and also identifies a novel and important role for PlGF in regulating the vasculogenic potential of ECFCs. Electronic supplementary material The online version of this article (doi:10.1186/s13287-016-0430-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Michelle B Hookham
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Imran H A Ali
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Christina L O'Neill
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Emer Hackett
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Melanie H Lambe
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Tina Schmidt
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Reinhold J Medina
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Sara Chamney
- Eye & Ear Clinic, Royal Victoria Hospital, Grosvenor Road, Belfast, BT12 6BA, UK
| | - Bharathi Rao
- Regional Neonatal Unit, Royal Maternity Hospital, Grosvenor Road, Belfast, BT12 6BA, UK
| | - Eibhlin McLoone
- Eye & Ear Clinic, Royal Victoria Hospital, Grosvenor Road, Belfast, BT12 6BA, UK
| | - David Sweet
- Regional Neonatal Unit, Royal Maternity Hospital, Grosvenor Road, Belfast, BT12 6BA, UK
| | - Alan W Stitt
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Derek P Brazil
- Centre for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK.
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23
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Bianchini F, Peppicelli S, Fabbrizzi P, Biagioni A, Mazzanti B, Menchi G, Calorini L, Pupi A, Trabocchi A. Triazole RGD antagonist reverts TGFβ1-induced endothelial-to-mesenchymal transition in endothelial precursor cells. Mol Cell Biochem 2016; 424:99-110. [PMID: 27761847 PMCID: PMC5219041 DOI: 10.1007/s11010-016-2847-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/08/2016] [Indexed: 12/26/2022]
Abstract
Fibrosis is the dramatic consequence of a dysregulated reparative process in which activated fibroblasts (myofibroblasts) and Transforming Growth Factor β1 (TGFβ1) play a central role. When exposed to TGFβ1, fibroblast and epithelial cells differentiate in myofibroblasts; in addition, endothelial cells may undergo endothelial-to-mesenchymal transition (EndoMT) and actively participate to the progression of fibrosis. Recently, the role of αv integrins, which recognize the Arg-Gly-Asp (RGD) tripeptide, in the release and signal transduction activation of TGFβ1 became evident. In this study, we present a class of triazole-derived RGD antagonists that interact with αvβ3 integrin. Above different compounds, the RGD-2 specifically interferes with integrin-dependent TGFβ1 EndoMT in Endothelial Colony-Forming Cells (ECPCs) derived from circulating Endothelial Precursor Cells (ECPCs). The RGD-2 decreases the amount of membrane-associated TGFβ1, and reduces both ALK5/TGFβ1 type I receptor expression and Smad2 phosphorylation in ECPCs. We found that RGD-2 antagonist reverts EndoMT, reducing α-smooth muscle actin (α-SMA) and vimentin expression in differentiated ECPCs. Our results outline the critical role of integrin in fibrosis progression and account for the opportunity of using integrins as target for anti-fibrotic therapeutic treatment.
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Affiliation(s)
- Francesca Bianchini
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy.
| | - Silvia Peppicelli
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy
| | | | - Alessio Biagioni
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy
| | | | - Gloria Menchi
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy.,Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Florence, Italy
| | - Lido Calorini
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy
| | - Alberto Pupi
- Department of Clinical and Experimental Biomedical Science "Mario Serio", University of Florence, Florence, Italy.,Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Florence, Italy
| | - Andrea Trabocchi
- Department of Chemistry "Ugo Schiff", University of Florence, Florence, Italy.,Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM), University of Florence, Florence, Italy
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24
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Thomas D, Thirumaran A, Mallard B, Chen X, Browne S, Wheatley AM, O'Brien T, Pandit A. Variability in Endogenous Perfusion Recovery of Immunocompromised Mouse Models of Limb Ischemia. Tissue Eng Part C Methods 2016; 22:370-81. [DOI: 10.1089/ten.tec.2015.0441] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Dilip Thomas
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
| | - Arun Thirumaran
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
| | - Beth Mallard
- Department of Physiology, National University of Ireland Galway, Galway, Ireland
| | - Xizhe Chen
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
| | - Shane Browne
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
| | - Antony M. Wheatley
- Department of Physiology, National University of Ireland Galway, Galway, Ireland
| | - Timothy O'Brien
- Regenerative Medicine Institute, National University of Ireland Galway, Galway, Ireland
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
| | - Abhay Pandit
- Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, Galway, Ireland
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25
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Huang Z, Miao X, Patarroyo M, Nilsson GP, Pernow J, Li N. Tetraspanin CD151 and integrin α6β1 mediate platelet-enhanced endothelial colony forming cell angiogenesis. J Thromb Haemost 2016; 14:606-18. [PMID: 26749288 DOI: 10.1111/jth.13248] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Indexed: 12/13/2022]
Abstract
UNLABELLED ESSENTIALS: Platelet releasates (PRs) enhance endothelial colony forming cell (ECFC) angiogenesis. The impact of platelet membrane components on ECFC angiogenesis was studied by a tube formation assay. Platelets enhanced ECFC angiogenesis more potently than PR, via tetraspanin CD151 and integrin α6β1. Optimal enhancement of ECFC angiogenesis by platelets requires both membrane proteins and PR. SUMMARY BACKGROUND Platelets promote angiogenesis of endothelial colony forming cells (ECFCs), with the underlying mechanisms not being fully understood. OBJECTIVE To investigate if platelets regulate the angiogenic property of ECFCs via mechanisms beyond platelet-released angiogenic regulators. METHODS AND RESULTS Endothelial colony forming cells were generated by ECFC-directed cell culture of peripheral blood mononuclear cells. Capillary-like tube formation of ECFCs was assessed using a Matrigel assay. Platelets promoted ECFC tube formation in both basic and complete ECFC medium. Importantly, the ECFC angiogenic responses induced by platelets were stronger than those induced by platelet releasates. Thus, the branching points of ECFC tube formation (30.5 ± 9.0/field, ECFC alone) were increased by platelet releasates (58.2 ± 8.3/field) and even more profoundly by platelets (95.5 ± 17.6/field), indicating that platelet membrane components also promoted ECFC tube formation. The latter was further supported by evidence that fixed platelets did enhance ECFC tube formation. Subsequent experiments revealed that the promotion was dependent on platelet-surface glycoproteins, as removal of sialic acid from platelet glycoproteins by neuraminidase abolished the enhancement. Furthermore, platelet-expressed, but not ECFC-expressed, CD151 was important for the enhancement, as pretreatment of platelets, but not ECFCs, with a CD151-blocking antibody attenuated the effect. Integrin α6β1 on both ECFCs and platelets also participated in platelet-promoted tube formation, as integrin α6 or β1 blockade of either cell type markedly or totally inhibited the phenomenon. Moreover, platelets exerted the enhancement via the Src-PI3K signaling pathway of ECFCs. CONCLUSION Platelet-enhanced ECFC angiogenesis requires platelet tetraspanin CD151 and α6β1 integrin, as well as ECFC α6β1 integrin and Src-PI3K signaling.
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Affiliation(s)
- Z Huang
- Clinical Pharmacology Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - X Miao
- Clinical Pharmacology Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - M Patarroyo
- Department of Dental Medicine, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - G P Nilsson
- Clinical Immunology and Allergy Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - J Pernow
- Cardiology Unit, Department of Medicine-Solna, Karolinska Institutet, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - N Li
- Clinical Pharmacology Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
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26
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Zheng L, Zhu H, Mu H, Wu J, Song W, Zhai Y, Peng S, Li G, Hua J. CD49f promotes proliferation of male dairy goat germline stem cells. Cell Prolif 2016; 49:27-35. [PMID: 26841372 PMCID: PMC6495884 DOI: 10.1111/cpr.12232] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 09/18/2015] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES CD49f enhances multipotency and maintains stemness in embryonic stem cells (ESCs), however, whether it would be effective in mGSCs has remained unclear. Moreover, better standards for mGSC enrichment and purification are necessary. The present study was conducted to determine roles of CD49f in mGSC enrichment and regulation. MATERIALS AND METHODS CD49f expression patterns were investigated in dairy goats. CD49f positive cells were purified and enriched using magnetic-activated cell sorting (MACS), and characteristics of the cultured cells were assayed using alkaline phosphatase (AP) analysis, quantitative real-time PCR (QRT-PCR) and immunofluorescence analysis. Furthermore, the exogenous CD49f gene was transfected into mGSCs and its effects were analysed. RESULTS CD49f was found to be conserved in both mRNA and amino acid sequences and that it was an efficient marker for dairy goat mGSC identification, enrichment and purification. CD49f positive cells expressed higher levels of mGSC-specific markers, and proliferated faster than CD49f negative cells. Overexpression CD49f promoted proliferation of dairy goat mGSCs, and Oct4 expression was upregulated; histone H3-lysine 9 dimethylation (H3K9me2) was reduced. CONCLUSIONS Taken together, our data suggest that CD49f plays novel and dynamic roles in regulating maintenance of pluripotency in mGSCs via Oct4 crosstalk and histone methylation dynamics,which may provide new solutions for mGSCs stability in vitro.
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Affiliation(s)
- Liming Zheng
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Haijing Zhu
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
- College of Life Science, Yulin University, Shaanxi, 719000, China
| | - Hailong Mu
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiang Wu
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
- College of Agriculture, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China
| | - Wencong Song
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yuanxin Zhai
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Sha Peng
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guangpeng Li
- Key Laboratory for Mammalian Reproductive Biology and Biotechnology, Ministry of Education, Inner Mongolia University, Hohhot, 010021, China
| | - Jinlian Hua
- College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
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27
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Bouvard C, Galy-Fauroux I, Grelac F, Carpentier W, Lokajczyk A, Gandrille S, Colliec-Jouault S, Fischer AM, Helley D. Low-Molecular-Weight Fucoidan Induces Endothelial Cell Migration via the PI3K/AKT Pathway and Modulates the Transcription of Genes Involved in Angiogenesis. Mar Drugs 2015; 13:7446-62. [PMID: 26694425 PMCID: PMC4699248 DOI: 10.3390/md13127075] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/10/2015] [Accepted: 12/11/2015] [Indexed: 12/12/2022] Open
Abstract
Low-molecular-weight fucoidan (LMWF) is a sulfated polysaccharide extracted from brown seaweed that presents antithrombotic and pro-angiogenic properties. However, its mechanism of action is not well-characterized. Here, we studied the effects of LMWF on cell signaling and whole genome expression in human umbilical vein endothelial cells and endothelial colony forming cells. We observed that LMWF and vascular endothelial growth factor had synergistic effects on cell signaling, and more interestingly that LMWF by itself, in the absence of other growth factors, was able to trigger the activation of the PI3K/AKT pathway, which plays a crucial role in angiogenesis and vasculogenesis. We also observed that the effects of LMWF on cell migration were PI3K/AKT-dependent and that LMWF modulated the expression of genes involved at different levels of the neovessel formation process, such as cell migration and cytoskeleton organization, cell mobilization and homing. This provides a better understanding of LMWF’s mechanism of action and confirms that it could be an interesting therapeutic approach for vascular repair.
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Affiliation(s)
- Claire Bouvard
- Inserm, UMR-S765, 75006 Paris, France.
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
- Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris, France.
| | - Isabelle Galy-Fauroux
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
- Inserm, UMR-S970, 75015 Paris, France.
| | - Françoise Grelac
- Inserm, UMR-S765, 75006 Paris, France.
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
| | | | - Anna Lokajczyk
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
- Inserm, UMR-S1140, 75006 Paris, France.
| | - Sophie Gandrille
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
- Inserm, UMR-S1140, 75006 Paris, France.
- AP-HP, Hôpital Européen Georges Pompidou, 75015 Paris, France.
| | | | - Anne-Marie Fischer
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
- Inserm, UMR-S970, 75015 Paris, France.
- AP-HP, Hôpital Européen Georges Pompidou, 75015 Paris, France.
| | - Dominique Helley
- Université Paris Descartes, Sorbonne Paris Cité, 75006 Paris, France.
- Inserm, UMR-S970, 75015 Paris, France.
- AP-HP, Hôpital Européen Georges Pompidou, 75015 Paris, France.
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28
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Functional and Biological Role of Endothelial Precursor Cells in Tumour Progression: A New Potential Therapeutic Target in Haematological Malignancies. Stem Cells Int 2015; 2016:7954580. [PMID: 26788072 PMCID: PMC4691637 DOI: 10.1155/2016/7954580] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 06/19/2015] [Accepted: 08/10/2015] [Indexed: 12/11/2022] Open
Abstract
It was believed that vasculogenesis occurred only during embryo life and that postnatal formation of vessels arose from angiogenesis. Recent findings demonstrate the existence of Endothelial Precursor Cells (EPCs), which take partin postnatal vasculogenesis. EPCs are recruited from the bone marrow under the stimulation of growth factors and cytokines and reach the sites of neovascularization in both physiological and pathological conditions such as malignancies where they contribute to the “angiogenic switch” and tumor progression. An implementation of circulating EPCs in the bloodstream of patients with haematological malignancies has been demonstrated. This increase is strictly related to the bone marrow microvessel density and correlated with a poor prognosis. The EPCs characterization is a very complex process and still under investigation. This literature review aims to provide an overview of the functional and biological role of EPCs in haematological malignancies and to investigate their potential as a new cancer therapeutic target.
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29
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Shafiee A, Fisk NM, Hutmacher DW, Khosrotehrani K, Patel J. Fetal endothelial and mesenchymal progenitors from the human term placenta: potency and clinical potential. Stem Cells Transl Med 2015; 4:419-23. [PMID: 25769652 DOI: 10.5966/sctm.2014-0224] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 02/09/2015] [Indexed: 01/11/2023] Open
Abstract
Since the isolation of fetal stem cell populations from perinatal tissues, such as umbilical cord blood and placenta, interest has been growing in understanding their greater plasticity compared with adult stem cells and exploring their potential in regenerative medicine. The phenomenon of fetal microchimerism (FMC) naturally occurring during pregnancy through the transfer of fetal stem/progenitor cells to maternal blood and tissues has been integral in developing this dogma. Specifically, microchimeric mesenchymal stem cells and endothelial progenitors of fetal origin have now demonstrated a capacity for tissue repair in the maternal host. However, the use of similar fetal stem cells in therapy has been significantly hampered by the availability of clinically relevant cell numbers and/or contamination with cells of maternal origin, particularly when using the chorionic and decidual placenta. In the present prospective review, we highlight the importance of FMC to the field of fetal stem cell biology and issues of maternal contamination from perinatal tissues and discuss specific isolation strategies to overcome these translational obstacles.
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Affiliation(s)
- Abbas Shafiee
- Experimental Dermatology Group, UQ Centre for Clinical Research, The University of Queensland, Herston, Queensland, Australia; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Nicholas M Fisk
- Experimental Dermatology Group, UQ Centre for Clinical Research, The University of Queensland, Herston, Queensland, Australia
| | - Dietmar W Hutmacher
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Kiarash Khosrotehrani
- Experimental Dermatology Group, UQ Centre for Clinical Research, The University of Queensland, Herston, Queensland, Australia;
| | - Jatin Patel
- Experimental Dermatology Group, UQ Centre for Clinical Research, The University of Queensland, Herston, Queensland, Australia
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30
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Fraineau S, Palii CG, Allan DS, Brand M. Epigenetic regulation of endothelial-cell-mediated vascular repair. FEBS J 2015; 282:1605-29. [PMID: 25546332 DOI: 10.1111/febs.13183] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/17/2014] [Accepted: 12/19/2014] [Indexed: 01/16/2023]
Abstract
Maintenance of vascular integrity is essential for the prevention of vascular disease and for recovery following cardiovascular, cerebrovascular and peripheral vascular events including limb ischemia, heart attack and stroke. Endothelial stem/progenitor cells have recently gained considerable interest due to their potential use in stem cell therapies to mediate revascularization after ischemic injury. Therefore, there is an urgent need to understand fundamental mechanisms regulating vascular repair in specific cell types to develop new beneficial therapeutic interventions. In this review, we highlight recent studies demonstrating that epigenetic mechanisms (including post-translational modifications of DNA and histones as well as non-coding RNA-mediated processes) play essential roles in the regulation of endothelial stem/progenitor cell functions through modifying chromatin structure. Furthermore, we discuss the potential of using small molecules that modulate the activities of epigenetic enzymes to enhance the vascular repair function of endothelial cells and offer insight on potential strategies that may accelerate clinical applications.
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Affiliation(s)
- Sylvain Fraineau
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Canada; Ottawa Institute of Systems Biology, Canada
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Smadja DM, Guerin CL, Boscolo E, Bieche I, Mulliken JB, Bischoff J. α6-Integrin is required for the adhesion and vasculogenic potential of hemangioma stem cells. Stem Cells 2014; 32:684-93. [PMID: 24022922 DOI: 10.1002/stem.1539] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 07/31/2013] [Accepted: 08/12/2013] [Indexed: 11/10/2022]
Abstract
Infantile hemangioma (IH) is the most common tumor of infancy. Hemangioma stem cells (HemSC) are a mesenchymal subpopulation isolated from IH CD133+ cells. HemSC can differentiate into endothelial and pericyte/smooth muscle cells and form vascular networks when injected in immune-deficient mice. α6-Integrin subunit has been implicated in the tumorgenicity of glioblastoma stem cells and the homing properties of hematopoietic, endothelial, and mesenchymal progenitor cells. Therefore, we investigated the possible function(s) of α6-integrin in HemSC. We documented α6-integrin expression in IH tumor specimens and HemSC by RT-qPCR and flow cytometry. We examined the effect of blocking or silencing α6-integrin on the adhesive and proliferative properties of HemSC in vitro and the vasculogenic and homing properties of HemSC in vivo. Targeting α6-integrin in cultured HemSC inhibited adhesion to laminin but had no effect on proliferation. Vessel-forming ability in Matrigel implants and hepatic homing after i.v. delivery were significantly decreased in α6-integrin siRNA-transfected HemSC. In conclusion, α6-integrin is required for HemSC adherence to laminin, vessel formation in vivo, and for homing to the liver. Thus, we uncovered an important role for α6 integrin in the vasculogenic properties of HemSC. Our results suggest that α6-integrin expression on HemSC could be a new target for antihemangioma therapy.
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Affiliation(s)
- David M Smadja
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA; Paris Descartes University, Sorbonne Paris Cite, Paris, France; AP-HP, Hôpital Européen Georges Pompidou, Department of Hematology, Paris, France
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32
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Bouvard C, Segaoula Z, De Arcangelis A, Galy-Fauroux I, Mauge L, Fischer AM, Georges-Labouesse E, Helley D. Tie2-dependent deletion of α6 integrin subunit in mice reduces tumor growth and angiogenesis. Int J Oncol 2014; 45:2058-64. [PMID: 25176420 DOI: 10.3892/ijo.2014.2631] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Accepted: 07/17/2014] [Indexed: 11/05/2022] Open
Abstract
The α6 integrin subunit (α6) has been implicated in cancer cell migration and in the progression of several malignancies, but its role in tumor angiogenesis is unclear. In mice, anti-α6 blocking antibodies reduce tumor angiogenesis, whereas Tie1-dependent α6 gene deletion enhances neovessel formation in melanoma and lung carcinoma. To clarify the discrepancy in these results we used the cre-lox system to generate a mouse line, α6fl/fl‑Tie2Cre(+), with α6 gene deletion specifically in Tie2-lineage cells: endothelial cells, pericytes, subsets of hematopoietic stem cells, and Tie2-expressing monocytes/macrophages (TEMs), known for their proangiogenic properties. Loss of α6 expression in α6fl/fl‑Tie2Cre(+) mice reduced tumor growth in a murine B16F10 melanoma model. Immunohistological analysis of the tumors showed that Tie2-dependent α6 gene deletion was associated with reduced tumor vascularization and with reduced infiltration of proangiogenic Tie2-expressing macrophages. These findings demonstrate that α6 integrin subunit plays a major role in tumor angiogenesis and TEM infiltration. Targeting α6 could be used as a strategy to reduce tumor growth.
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Affiliation(s)
| | | | - Adèle De Arcangelis
- Institute of Genetics, Cellular and Molecular Biology, INSERM U964, CNRS UMR 7104, University of Strasbourg, Illkirch, France
| | | | - Laetitia Mauge
- University Paris Descartes, Sorbonne Paris Cité, Paris, France
| | | | - Elisabeth Georges-Labouesse
- Institute of Genetics, Cellular and Molecular Biology, INSERM U964, CNRS UMR 7104, University of Strasbourg, Illkirch, France
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Mena HA, Lokajczyk A, Dizier B, Strier SE, Voto LS, Boisson-Vidal C, Schattner M, Negrotto S. Acidic preconditioning improves the proangiogenic responses of endothelial colony forming cells. Angiogenesis 2014; 17:867-79. [DOI: 10.1007/s10456-014-9434-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 05/13/2014] [Indexed: 01/08/2023]
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Kobayashi M, Ohno T, Ihara K, Murai A, Kumazawa M, Hoshino H, Iwanaga K, Iwai H, Hamana Y, Ito M, Ohno K, Horio F. Searching for genomic region of high-fat diet-induced type 2 diabetes in mouse chromosome 2 by analysis of congenic strains. PLoS One 2014; 9:e96271. [PMID: 24789282 PMCID: PMC4006839 DOI: 10.1371/journal.pone.0096271] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 04/05/2014] [Indexed: 11/19/2022] Open
Abstract
SMXA-5 mice are a high-fat diet-induced type 2 diabetes animal model established from non-diabetic SM/J and A/J mice. By using F2 intercross mice between SMXA-5 and SM/J mice under feeding with a high-fat diet, we previously mapped a major diabetogenic QTL (T2dm2sa) on chromosome 2. We then produced the congenic strain (SM.A-T2dm2sa (R0), 20.8–163.0 Mb) and demonstrated that the A/J allele of T2dm2sa impaired glucose tolerance and increased body weight and body mass index in the congenic strain compared to SM/J mice. We also showed that the combination of T2dm2sa and other diabetogenic loci was needed to develop the high-fat diet-induced type 2 diabetes. In this study, to narrow the potential genomic region containing the gene(s) responsible for T2dm2sa, we constructed R1 and R2 congenic strains. Both R1 (69.6–163.0 Mb) and R2 (20.8–128.2 Mb) congenic mice exhibited increases in body weight and abdominal fat weight and impaired glucose tolerance compared to SM/J mice. The R1 and R2 congenic analyses strongly suggested that the responsible genes existed in the overlapping genomic interval (69.6–128.2 Mb) between R1 and R2. In addition, studies using the newly established R1A congenic strain showed that the narrowed genomic region (69.6–75.4 Mb) affected not only obesity but also glucose tolerance. To search for candidate genes within the R1A genomic region, we performed exome sequencing analysis between SM/J and A/J mice and extracted 4 genes (Itga6, Zak, Gpr155, and Mtx2) with non-synonymous coding SNPs. These four genes might be candidate genes for type 2 diabetes caused by gene-gene interactions. This study indicated that one of the genes responsible for high-fat diet-induced diabetes exists in the 5.8 Mb genomic interval on mouse chromosome 2.
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MESH Headings
- Abdominal Fat/metabolism
- Animals
- Blood Glucose/metabolism
- Chromosomes, Mammalian/genetics
- Diabetes Mellitus, Type 2/chemically induced
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/pathology
- Diet, High-Fat
- Epistasis, Genetic
- Genetic Association Studies
- Genetic Predisposition to Disease
- Integrin alpha6/genetics
- MAP Kinase Kinase Kinases/genetics
- Membrane Proteins/genetics
- Mice
- Mice, Congenic
- Mitochondrial Proteins/genetics
- Molecular Sequence Data
- Polymorphism, Single Nucleotide
- Receptors, G-Protein-Coupled/genetics
- Sequence Analysis, DNA
- Weight Gain
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Affiliation(s)
- Misato Kobayashi
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Tamio Ohno
- Division of Experimental Animals, Center for Promotion of Medical Research and Education, Graduate School of Medicine, Nagoya University, Nagoya, Aichi, Japan
| | - Kunio Ihara
- Center for Gene Research, Nagoya University, Nagoya, Aichi, Japan
| | - Atsushi Murai
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Mayumi Kumazawa
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Hiromi Hoshino
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Koichiro Iwanaga
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Hiroshi Iwai
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Yoshiki Hamana
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Mikako Ito
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Kinji Ohno
- Division of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Fumihiko Horio
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
- * E-mail:
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Trichostatin A Enhances Vascular Repair by Injected Human Endothelial Progenitors through Increasing the Expression of TAL1-Dependent Genes. Cell Stem Cell 2014; 14:644-57. [DOI: 10.1016/j.stem.2014.03.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 01/08/2014] [Accepted: 03/11/2014] [Indexed: 12/31/2022]
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37
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Nagel S, Rohr F, Weber C, Kier J, Siemers F, Kruse C, Danner S, Brandenburger M, Matthiessen AE. Multipotent nestin-positive stem cells reside in the stroma of human eccrine and apocrine sweat glands and can be propagated robustly in vitro. PLoS One 2013; 8:e78365. [PMID: 24205211 PMCID: PMC3813437 DOI: 10.1371/journal.pone.0078365] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 09/18/2013] [Indexed: 01/24/2023] Open
Abstract
Human skin harbours multiple different stem cell populations. In contrast to the relatively well-characterized niches of epidermal and hair follicle stem cells, the localization and niches of stem cells in other human skin compartments are as yet insufficiently investigated. Previously, we had shown in a pilot study that human sweat gland stroma contains Nestin-positive stem cells. Isolated sweat gland stroma-derived stem cells (SGSCs) proliferated in vitro and expressed Nestin in 80% of the cells. In this study, we were able to determine the precise localization of Nestin-positive cells in both eccrine and apocrine sweat glands of human axillary skin. We established a reproducible isolation procedure and characterized the spontaneous, long-lasting multipotent differentiation capacity of SGSCs. Thereby, a pronounced ectodermal differentiation was observed. Moreover, the secretion of prominent cytokines demonstrated the immunological potential of SGSCs. The comparison to human adult epidermal stem cells (EpiSCs) and bone marrow stem cells (BMSCs) revealed differences in protein expression and differentiation capacity. Furthermore, we found a coexpression of the stem cell markers Nestin and Iα6 within SGSCs and human sweat gland stroma. In conclusion the initial results of the pilot study were confirmed, indicating that human sweat glands are a new source of unique stem cells with multilineage differentiation potential, high proliferation capacity and remarkable self renewal. With regard to the easy accessibility of skin tissue biopsies, an autologous application of SGSCs in clinical therapies appears promising.
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Affiliation(s)
- Sabine Nagel
- Fraunhofer Research Institution for Marine Biotechnology, Lübeck, Germany
| | - Franziska Rohr
- Fraunhofer Research Institution for Marine Biotechnology, Lübeck, Germany
| | - Caroline Weber
- Fraunhofer Research Institution for Marine Biotechnology, Lübeck, Germany
| | - Janina Kier
- Fraunhofer Research Institution for Marine Biotechnology, Lübeck, Germany
| | - Frank Siemers
- Department of Plastic and Hand Surgery, University of Lübeck, Lübeck, Germany
| | - Charli Kruse
- Fraunhofer Research Institution for Marine Biotechnology, Lübeck, Germany
| | - Sandra Danner
- Fraunhofer Research Institution for Marine Biotechnology, Lübeck, Germany
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Patel J, Seppanen E, Chong MSK, Yeo JSL, Teo EYL, Chan JKY, Fisk NM, Khosrotehrani K. Prospective surface marker-based isolation and expansion of fetal endothelial colony-forming cells from human term placenta. Stem Cells Transl Med 2013; 2:839-47. [PMID: 24106336 DOI: 10.5966/sctm.2013-0092] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The term placenta is a highly vascularized tissue and is usually discarded upon birth. Our objective was to isolate clinically relevant quantities of fetal endothelial colony-forming cells (ECFCs) from human term placenta and to compare them to the well-established donor-matched umbilical cord blood (UCB)-derived ECFCs. A sorting strategy was devised to enrich for CD45-CD34+CD31Lo cells prior to primary plating to obtain pure placental ECFCs (PL-ECFCs) upon culture. UCB-ECFCs were derived using a well-described assay. PL-ECFCs were fetal in origin and expressed the same cell surface markers as UCB-ECFCs. Most importantly, a single term placenta could yield as many ECFCs as 27 UCB donors. PL-ECFCs and UCB-ECFCs had similar in vitro and in vivo vessel forming capacities and restored mouse hind limb ischemia in similar proportions. Gene expression profiles were only minimally divergent between PL-ECFCs and UCB-ECFCs, probably reflecting a vascular source versus a circulating source. Finally, PL-ECFCs and UCB-ECFCs displayed similar hierarchies between high and low proliferative colonies. We report a robust strategy to isolate ECFCs from human term placentas based on their cell surface expression. This yielded much larger quantities of ECFCs than UCB, but the cells were comparable in immunophenotype, gene expression, and in vivo functional ability. We conclude that PL-ECFCs have significant bio-banking and clinical translatability potential.
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Affiliation(s)
- Jatin Patel
- University of Queensland Centre for Clinical Research, University of Queensland, Herston, Queensland, Australia
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Balaji S, King A, Crombleholme TM, Keswani SG. The Role of Endothelial Progenitor Cells in Postnatal Vasculogenesis: Implications for Therapeutic Neovascularization and Wound Healing. Adv Wound Care (New Rochelle) 2013; 2:283-295. [PMID: 24527350 DOI: 10.1089/wound.2012.0398] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Indexed: 01/16/2023] Open
Abstract
SIGNIFICANCE Postnatal vasculogenesis mediated via endothelial progenitor cells (EPCs) contributes to re-endothelialization and augments neovascularization after ischemia and tissue injury, providing a novel therapeutic application. However, controversy exists with respect to the origin, identification, and contributions of the EPCs to neovascularization, necessitating further study. RECENT ADVANCES Bone marrow (BM) or circulating cells expressing cd133/vascular endothelial growth factor receptor 2 include those with endothelial progenitor capacity. Increasing evidence suggests that there are additional BM-derived (myeloid; mesenchymal cells) and non-BM-derived (peripheral and cord-blood; tissue-resident) cell populations which also give rise to endothelial cells (ECs) and contribute to re-endothelialization and growth factor release after ischemia and tissue injury. Currently, EPCs are being used as diagnostic markers for the assessment of cardiovascular and tumor risk/progression. Techniques aimed at enhancing ex vivo expansion and the therapeutic potential of these cells are being optimized. CRITICAL ISSUES Mobilization and EPC-mediated neovascularization are critically regulated. Stimulatory (growth factors, statins, and exercise) or inhibitory factors (obesity, diabetes, and other cardiovascular diseases) modulate EPC numbers and function. Recruitment and incorporation of EPCs require a coordinated sequence of signaling events, including adhesion, migration (by integrins), and chemoattraction. Finally, EPCs differentiate into ECs and/or secrete angiogenic growth factors. These cells are highly plastic, and depending on the microenvironment and presence of other cells, EPCs transdifferentiate and/or undergo cell fusion and become cells of a different lineage. Therefore, in vitro culture conditions should be optimized to mimic the in vivo milieu to fully characterize the biological function and contribution of EPCs to postnatal vasculogenesis. FUTURE DIRECTIONS Advances in characterization of the EPC biology and enhancement of EPC functions are required. In addition, innovative tissue-engineered carrier matrices that permit embedding of EPCs and provide optimal conditions for EPC survival and endothelial outgrowth will further contribute to EPC-mediated therapeutic applications in wound healing and ischemia repair.
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Affiliation(s)
- Swathi Balaji
- Center for Molecular Fetal Therapy, Division of Pediatric, General, Thoracic, and Fetal Surgery, Cincinnati Children's Hospital and the University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Alice King
- Center for Molecular Fetal Therapy, Division of Pediatric, General, Thoracic, and Fetal Surgery, Cincinnati Children's Hospital and the University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Timothy M. Crombleholme
- Center for Molecular Fetal Therapy, Division of Pediatric, General, Thoracic, and Fetal Surgery, Cincinnati Children's Hospital and the University of Cincinnati College of Medicine, Cincinnati, Ohio
- Center for Children's Surgery, Children's Hospital Colorado and the University of Colorado School of Medicine, Aurora, Colorado
| | - Sundeep G. Keswani
- Center for Molecular Fetal Therapy, Division of Pediatric, General, Thoracic, and Fetal Surgery, Cincinnati Children's Hospital and the University of Cincinnati College of Medicine, Cincinnati, Ohio
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de la Puente P, Muz B, Azab F, Azab AK. Cell trafficking of endothelial progenitor cells in tumor progression. Clin Cancer Res 2013; 19:3360-8. [PMID: 23665736 DOI: 10.1158/1078-0432.ccr-13-0462] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Blood vessel formation plays an essential role in many physiologic and pathologic processes, including normal tissue growth and healing, as well as tumor progression. Endothelial progenitor cells (EPC) are a subtype of stem cells with high proliferative potential that are capable of differentiating into mature endothelial cells, thus contributing to neovascularization in tumors. In response to tumor-secreted cytokines, EPCs mobilize from the bone marrow to the peripheral blood, home to the tumor site, and differentiate to mature endothelial cells and secrete proangiogenic factors to facilitate vascularization of tumors. In this review, we summarize the expression of surface markers, cytokines, receptors, adhesion molecules, proteases, and cell signaling mechanisms involved in the different steps (mobilization, homing, and differentiation) of EPC trafficking from the bone marrow to the tumor site. Understanding the biologic mechanisms of EPC cell trafficking opens a window for new therapeutic targets in cancer.
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Affiliation(s)
- Pilar de la Puente
- Department of Radiation Oncology, Cancer Biology Division, Washington University in Saint Louis School of Medicine, Saint Louis, Missouri 63108, USA
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Zhao YH, Yuan B, Chen J, Feng DH, Zhao B, Qin C, Chen YF. Endothelial progenitor cells: therapeutic perspective for ischemic stroke. CNS Neurosci Ther 2012; 19:67-75. [PMID: 23230897 DOI: 10.1111/cns.12040] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 10/30/2012] [Accepted: 10/31/2012] [Indexed: 12/26/2022] Open
Abstract
Endothelial progenitor cells (EPCs), which can be cultured in vitro from mononuclear cells in peripheral blood or bone marrow, express both hematopoietic stem cell and endothelial cell markers on their surface. They are believed to participate in endothelial repair and postnatal angiogenesis due to their abilities of differentiating into endothelial cells and secreting protective cytokines and growth factors. Mounting evidence suggests that circulating EPCs are reduced and dysfunctional in various diseases including hypertension, diabetes, coronary heart disease, and ischemic stroke. Therefore, EPCs have been documented to be a potential biomarker for vascular diseases and a hopeful candidate for regenerative medicine. Ischemic stroke, as the major cause of disability and death, still has limited therapeutics based on the approaches of vascular recanalization or neuronal protection. Emerging evidence indicates that transplantation of EPCs is beneficial for the recovery of ischemic cerebral injury. EPC-based therapy could open a new avenue for ischemic cerebrovascular disease. Currently, clinical trials for evaluating EPC transfusion in treating ischemic stroke are underway. In this review, we summarize the general conceptions and the characteristics of EPCs, and highlight the recent research developments on EPCs. More importantly, the rationale, perspectives, and strategies for using them to treat ischemic stroke will be discussed.
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Affiliation(s)
- Yu-Hui Zhao
- Department of Neurology, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
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42
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Comparative analysis of platelet-derived microparticles reveals differences in their amount and proteome depending on the platelet stimulus. J Proteomics 2012; 76 Spec No.:287-96. [DOI: 10.1016/j.jprot.2012.02.030] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 02/11/2012] [Accepted: 02/22/2012] [Indexed: 01/14/2023]
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43
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Dias JV, Benslimane-Ahmim Z, Egot M, Lokajczyk A, Grelac F, Galy-Fauroux I, Juliano L, Le-Bonniec B, Takiya CM, Fischer AM, Blanc-Brude O, Morandi V, Boisson-Vidal C. A motif within the N-terminal domain of TSP-1 specifically promotes the proangiogenic activity of endothelial colony-forming cells. Biochem Pharmacol 2012; 84:1014-23. [PMID: 22796565 DOI: 10.1016/j.bcp.2012.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 06/28/2012] [Accepted: 07/05/2012] [Indexed: 01/09/2023]
Abstract
Thrombospondin-1 (TSP-1) gives rise to fragments that have both pro- and anti-angiogenic effects in vitro and in vivo. The TSP-HepI peptide (2.3 kDa), located in the N-terminal domain of TSP-1, has proangiogenic effects on endothelial cells. We have previously shown that TSP-1 itself exhibits a dual effect on endothelial colony-forming cells (ECFC) by enhancing their adhesion through its TSP-HepI fragment while reducing their proliferation and differentiation into vascular tubes (tubulogenesis) in vitro. This effect is likely mediated through CD47 binding to the TSP-1 C-terminal domain. Here we investigated the effect of TSP-HepI peptide on the angiogenic properties of ECFC in vitro and in vivo. TSP-HepI peptide potentiated FGF-2-induced neovascularisation by enhancing ECFC chemotaxis and tubulogenesis in a Matrigel plug assay. ECFC exposure to 20 μg/mL of TSP-HepI peptide for 18 h enhanced cell migration (p < 0.001 versus VEGF exposure), upregulated alpha 6-integrin expression, and enhanced their cell adhesion to activated endothelium under physiological shear stress conditions at levels comparable to those of SDF-1α. The adhesion enhancement appeared to be mediated by the heparan sulfate proteoglycan (HSPG) syndecan-4, as ECFC adhesion was significantly reduced by a syndecan-4-neutralising antibody. ECFC migration and tubulogenesis were stimulated neither by a TSP-HepI peptide with a modified heparin-binding site (S/TSP-HepI) nor when the glycosaminoglycans (GAGs) moieties were removed from the ECFC surface by enzymatic treatment. Ex vivo TSP-HepI priming could potentially serve to enhance the effectiveness of therapeutic neovascularisation with ECFC.
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Affiliation(s)
- Juliana Vieira Dias
- Departamento de Biologia Celular, Laboratório de Biologia da Célula Endotelial e da Angiogênese (LabAngio), Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, UERJ, Rio de Janeiro, RJ, Brazil.
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van Hinsbergh VWM. Tie2 lineage deletion of 6 integrin: endothelial and haematopoietic cells in neovascularization. Cardiovasc Res 2012; 95:5-6. [DOI: 10.1093/cvr/cvs171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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45
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Bouvard C, De Arcangelis A, Dizier B, Galy-Fauroux I, Fischer AM, Georges-Labouesse E, Helley D. Tie2-dependent knockout of α6 integrin subunit in mice reduces post-ischaemic angiogenesis. Cardiovasc Res 2012; 95:39-47. [DOI: 10.1093/cvr/cvs153] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Yu KR, Yang SR, Jung JW, Kim H, Ko K, Han DW, Park SB, Choi SW, Kang SK, Schöler H, Kang KS. CD49f Enhances Multipotency and Maintains Stemness Through the Direct Regulation of OCT4 and SOX2. Stem Cells 2012; 30:876-87. [DOI: 10.1002/stem.1052] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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47
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Caiado F, Dias S. Endothelial progenitor cells and integrins: adhesive needs. FIBROGENESIS & TISSUE REPAIR 2012; 5:4. [PMID: 22410175 PMCID: PMC3323425 DOI: 10.1186/1755-1536-5-4] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Accepted: 03/12/2012] [Indexed: 02/07/2023]
Abstract
In the last decade there have been multiple studies concerning the contribution of endothelial progenitor cells (EPCs) to new vessel formation in different physiological and pathological settings. The process by which EPCs contribute to new vessel formation in adults is termed postnatal vasculogenesis and occurs via four inter-related steps. They must respond to chemoattractant signals and mobilize from the bone marrow to the peripheral blood; home in on sites of new vessel formation; invade and migrate at the same sites; and differentiate into mature endothelial cells (ECs) and/or regulate pre-existing ECs via paracrine or juxtacrine signals. During these four steps, EPCs interact with different physiological compartments, namely bone marrow, peripheral blood, blood vessels and homing tissues. The success of each step depends on the ability of EPCs to interact, adapt and respond to multiple molecular cues. The present review summarizes the interactions between integrins expressed by EPCs and their ligands: extracellular matrix components and cell surface proteins present at sites of postnatal vasculogenesis. The data summarized here indicate that integrins represent a major molecular determinant of EPC function, with different integrin subunits regulating different steps of EPC biology. Specifically, integrin α4β1 is a key regulator of EPC retention and/or mobilization from the bone marrow, while integrins α5β1, α6β1, αvβ3 and αvβ5 are major determinants of EPC homing, invasion, differentiation and paracrine factor production. β2 integrins are the major regulators of EPC transendothelial migration. The relevance of integrins in EPC biology is also demonstrated by many studies that use extracellular matrix-based scaffolds as a clinical tool to improve the vasculogenic functions of EPCs. We propose that targeted and tissue-specific manipulation of EPC integrin-mediated interactions may be crucial to further improve the usage of this cell population as a relevant clinical agent.
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Affiliation(s)
- Francisco Caiado
- Angiogenesis Laboratory, CIPM, Instituto Português de Oncologia Francisco Gentil, EPE, Lisboa, Portugal.
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Schwarz TM, Leicht SF, Radic T, Rodriguez-Arabaolaza I, Hermann PC, Berger F, Saif J, Böcker W, Ellwart JW, Aicher A, Heeschen C. Vascular incorporation of endothelial colony-forming cells is essential for functional recovery of murine ischemic tissue following cell therapy. Arterioscler Thromb Vasc Biol 2011; 32:e13-21. [PMID: 22199368 DOI: 10.1161/atvbaha.111.239822] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Cord blood-derived human endothelial colony-forming cells (ECFCs) bear a high proliferative capacity and potently enhance tissue neovascularization in vivo. Here, we investigated whether the leading mechanism for the functional improvement relates to their physical vascular incorporation or perivascular paracrine effects and whether the effects can be further enhanced by dual-cell-based therapy, including mesenchymal stem cells (MSCs). METHODS AND RESULTS ECFCs or MSCs were lentivirally transduced with thymidine kinase suicide gene driven by the endothelial-specific vascular endothelial growth factor 2 (kinase insert domain receptor) promoter and evaluated in a hindlimb ischemia model. ECFCs and MSCs enhanced neovascularization after ischemic events to a similar extent. Dual therapy using ECFCs and MSCs further enhanced neovascularization. Mechanistically, 3 weeks after induction of ischemia followed by cell therapy, ganciclovir-mediated elimination of kinase insert domain receptor(+) cells completely reversed the therapeutic effect of ECFCs but not that of MSCs. Histological analysis revealed that ganciclovir effectively eliminated ECFCs incorporated into the vasculature. CONCLUSIONS Endothelial-specific suicide gene technology demonstrates distinct mechanisms for ECFCs and MSCs, with complete abolishment of ECFC-mediated effects, whereas MSC-mediated effects remained unaffected. These data strengthen the notion that a dual-cell-based therapy represents a promising approach for vascular regeneration of ischemic tissue.
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Affiliation(s)
- Theresa M Schwarz
- Stem Cell & Cancer Group, Centro Nacional de Investigaciones Oncológicas, c/ Melchor Fernández Almagro 3, 28029 Madrid, Spain
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