201
|
Zigdon-Giladi H, Michaeli-Geller G, Bick T, Lewinson D, Machtei EE. Human blood-derived endothelial progenitor cells augment vasculogenesis and osteogenesis. J Clin Periodontol 2015; 42:89-95. [DOI: 10.1111/jcpe.12325] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2014] [Indexed: 12/28/2022]
Affiliation(s)
- Hadar Zigdon-Giladi
- Department of Periodontology; School of Graduate Dentistry; Haifa Israel
- Research Institute for Bone Repair; Rambam Health Care Campus; Haifa Israel
- The Rappaport Family Faculty of Medicine; Technion - Israel Institute of Technology; Haifa Israel
| | - Gal Michaeli-Geller
- Research Institute for Bone Repair; Rambam Health Care Campus; Haifa Israel
- The Rappaport Family Faculty of Medicine; Technion - Israel Institute of Technology; Haifa Israel
| | - Tova Bick
- Research Institute for Bone Repair; Rambam Health Care Campus; Haifa Israel
| | - Dina Lewinson
- Research Institute for Bone Repair; Rambam Health Care Campus; Haifa Israel
| | - Eli E. Machtei
- Department of Periodontology; School of Graduate Dentistry; Haifa Israel
- Research Institute for Bone Repair; Rambam Health Care Campus; Haifa Israel
- The Rappaport Family Faculty of Medicine; Technion - Israel Institute of Technology; Haifa Israel
| |
Collapse
|
202
|
Li H, Xu Y, Guan R, Matheu M, Lei H, Tian W, Gao Z, Lin G, Guo Y, Xin Z, Song W. Icariside II prevents high-glucose-induced injury on human cavernous endothelial cells through Akt-eNOS signaling pathway. Andrology 2015; 3:408-16. [PMID: 25641754 DOI: 10.1111/andr.303] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/01/2014] [Accepted: 10/03/2014] [Indexed: 12/21/2022]
Affiliation(s)
- H. Li
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - Y. Xu
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - R. Guan
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - M. Matheu
- Diabetes Center; University of California; San Francisco CA USA
| | - H. Lei
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - W. Tian
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - Z. Gao
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - G. Lin
- Department of Urology; University of California; San Francisco CA USA
| | - Y. Guo
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - Z. Xin
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - W. Song
- Molecular Biology Laboratory of Andrology Center; Peking University First Hospital; Peking University; Beijing China
| |
Collapse
|
203
|
Kim H, Huang L, Critser PJ, Yang Z, Chan RJ, Wang L, Carlesso N, Voytik-Harbin SL, Bernstein ID, Yoder MC. Notch ligand Delta-like 1 promotes in vivo vasculogenesis in human cord blood-derived endothelial colony forming cells. Cytotherapy 2015; 17:579-92. [PMID: 25559145 DOI: 10.1016/j.jcyt.2014.12.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 11/06/2014] [Accepted: 12/04/2014] [Indexed: 01/11/2023]
Abstract
BACKGROUND AIMS Human cord blood (CB) is enriched in circulating endothelial colony forming cells (ECFCs) that display high proliferative potential and in vivo vessel forming ability. Because Notch signaling is critical for embryonic blood vessel formation in utero, we hypothesized that Notch pathway activation may enhance cultured ECFC vasculogenic properties in vivo. METHODS In vitro ECFC stimulation with an immobilized chimeric Notch ligand (Delta-like1(ext-IgG)) led to significant increases in the mRNA and protein levels of Notch regulated Hey2 and EphrinB2 that were blocked by treatment with γ-secretase inhibitor addition. However, Notch stimulated preconditioning in vitro failed to enhance ECFC vasculogenesis in vivo. In contrast, in vivo co-implantation of ECFCs with OP9-Delta-like 1 stromal cells that constitutively expressed the Notch ligand delta-like 1 resulted in enhanced Notch activated ECFC-derived increased vessel density and enlarged vessel area in vivo, an effect not induced by OP9 control stromal implantation. RESULTS This Notch activation was associated with diminished apoptosis in the exposed ECFC. CONCLUSIONS We conclude that Notch pathway activation in ECFC in vivo via co-implanted stromal cells expressing delta-like 1 promotes vasculogenesis and augments blood vessel formation via diminishing apoptosis of the implanted ECFC.
Collapse
Affiliation(s)
- Hyojin Kim
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA; Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Lan Huang
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Paul J Critser
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Zhenyun Yang
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Rebecca J Chan
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Lin Wang
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Nadia Carlesso
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Sherry L Voytik-Harbin
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA
| | | | - Mervin C Yoder
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA.
| |
Collapse
|
204
|
Peters EB, Christoforou N, Moore E, West JL, Truskey GA. CD45+ Cells Present Within Mesenchymal Stem Cell Populations Affect Network Formation of Blood-Derived Endothelial Outgrowth Cells. Biores Open Access 2015; 4:75-88. [PMID: 26309784 PMCID: PMC4497669 DOI: 10.1089/biores.2014.0029] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Mesenchymal stem cells (MSCs) and endothelial progenitor cells (EPCs) represent promising cell sources for angiogenic therapies. There are, however, conflicting reports regarding the ability of MSCs to support network formation of endothelial cells. The goal of this study was to assess the ability of human bone marrow-derived MSCs to support network formation of endothelial outgrowth cells (EOCs) derived from umbilical cord blood EPCs. We hypothesized that upon in vitro coculture, MSCs and EOCs promote a microenvironment conducive for EOC network formation without the addition of angiogenic growth supplements. EOC networks formed by coculture with MSCs underwent regression and cell loss by day 10 with a near 4-fold and 2-fold reduction in branch points and mean segment length, respectively, in comparison with networks formed by coculture vascular smooth muscle cell (SMC) cocultures. EOC network regression in MSC cocultures was not caused by lack of vascular endothelial growth factor (VEGF)-A or changes in TGF-β1 or Ang-2 supernatant concentrations in comparison with SMC cocultures. Removal of CD45+ cells from MSCs improved EOC network formation through a 2-fold increase in total segment length and number of branch points in comparison to unsorted MSCs by day 6. These improvements, however, were not sustained by day 10. CD45 expression in MSC cocultures correlated with EOC network regression with a 5-fold increase between day 6 and day 10 of culture. The addition of supplemental growth factors VEGF, fibroblastic growth factor-2, EGF, hydrocortisone, insulin growth factor-1, ascorbic acid, and heparin to MSC cocultures promoted stable EOC network formation over 2 weeks in vitro, without affecting CD45 expression, as evidenced by a lack of significant differences in total segment length (p=0.96). These findings demonstrate the ability of MSCs to support EOC network formation correlates with removal of CD45+ cells and improves upon the addition of soluble growth factors.
Collapse
Affiliation(s)
- Erica B. Peters
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Nicolas Christoforou
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
- Department of Biomedical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Erika Moore
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Jennifer L. West
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina
- Department of Cell Biology, Duke University, Durham, North Carolina
- Department of Chemistry, Duke University, Durham, North Carolina
| | - George A. Truskey
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| |
Collapse
|
205
|
Ferreras C, Cole CL, Urban K, Jayson GC, Avizienyte E. Segregation of late outgrowth endothelial cells into functional endothelial CD34- and progenitor-like CD34+ cell populations. Angiogenesis 2015; 18:47-68. [PMID: 25269667 DOI: 10.1007/s10456-014-9446-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 09/19/2014] [Indexed: 01/16/2023]
Abstract
Late outgrowth endothelial cells (OECs) that originate from peripheral blood mononuclear cells ex vivo have phenotypic and functional properties of mature endothelial cells. Given the potential therapeutic applications of OECs, understanding their biology is crucial. We have identified two distinct OEC populations based on differential expression of the cell surface marker CD34. OEC colonies lacked CD34 expression (CD34-), expressed CD34 in the majority of cells (CD34+), or showed a mixed expression pattern within a colony (CD34+/-). CD34+ and CD34- OECs were negative for hematopoietic cell marker CD45 and expressed the endothelial cell surface markers CD31, CD146, CD105, and VEGFR-2. Functionally CD34- and CD34+ OECs exhibited strikingly distinct behaviors. CD34- OECs, unlike CD34+ OECs, were capable of sprouting, formed tubes, and responded to angiogenic growth factors in vitro. In vivo, CD34- OECs formed endothelial tubes, while CD34+ OECs, despite being unable to form tubes, promoted infiltration of murine vasculature. Global gene expression profiling in CD34- and CD34+ OECs identified functional importance of the MMP-1/PAR-1 pathway in CD34- OECs. MMP-1 stimulated the expression of VEGFR-2, neuropilin-1, neuropilin-2, and CXCR4 and activated ERK1/2, whereas down-regulation of PAR-1 in CD34- OECs resulted in impaired angiogenic responses in vitro and reduced VEGFR-2 levels. In contrast, the CD34+ OEC colonies expressed high levels of the progenitor cell marker ALDH, which was absent in CD34- OECs. In summary, we show that OECs can be classified into functionally mature endothelial cells (CD34- OECs) that depend on the MMP-1/PAR-1 pathway and progenitor-like angiogenesis-promoting cells (CD34+ OECs).
Collapse
Affiliation(s)
- Cristina Ferreras
- Institute of Cancer Sciences, Faculty of Medical and Human Sciences, The University of Manchester, Paterson Building, Wilmslow Road, Manchester, M20 4BX, UK
| | | | | | | | | |
Collapse
|
206
|
Baskir R, Majka S. Pulmonary Vascular Remodeling by Resident Lung Stem and Progenitor Cells. LUNG STEM CELLS IN THE EPITHELIUM AND VASCULATURE 2015. [DOI: 10.1007/978-3-319-16232-4_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
207
|
Van Linthout S, Frias M, Singh N, De Geest B. Therapeutic potential of HDL in cardioprotection and tissue repair. Handb Exp Pharmacol 2015; 224:527-565. [PMID: 25523001 DOI: 10.1007/978-3-319-09665-0_17] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Epidemiological studies support a strong association between high-density lipoprotein (HDL) cholesterol levels and heart failure incidence. Experimental evidence from different angles supports the view that low HDL is unlikely an innocent bystander in the development of heart failure. HDL exerts direct cardioprotective effects, which are mediated via its interactions with the myocardium and more specifically with cardiomyocytes. HDL may improve cardiac function in several ways. Firstly, HDL may protect the heart against ischaemia/reperfusion injury resulting in a reduction of infarct size and thus in myocardial salvage. Secondly, HDL can improve cardiac function in the absence of ischaemic heart disease as illustrated by beneficial effects conferred by these lipoproteins in diabetic cardiomyopathy. Thirdly, HDL may improve cardiac function by reducing infarct expansion and by attenuating ventricular remodelling post-myocardial infarction. These different mechanisms are substantiated by in vitro, ex vivo, and in vivo intervention studies that applied treatment with native HDL, treatment with reconstituted HDL, or human apo A-I gene transfer. The effect of human apo A-I gene transfer on infarct expansion and ventricular remodelling post-myocardial infarction illustrates the beneficial effects of HDL on tissue repair. The role of HDL in tissue repair is further underpinned by the potent effects of these lipoproteins on endothelial progenitor cell number, function, and incorporation, which may in particular be relevant under conditions of high endothelial cell turnover. Furthermore, topical HDL therapy enhances cutaneous wound healing in different models. In conclusion, the development of HDL-targeted interventions in these strategically chosen therapeutic areas is supported by a strong clinical rationale and significant preclinical data.
Collapse
Affiliation(s)
- Sophie Van Linthout
- Charité-University-Medicine Berlin, Campus Virchow, Berlin-Brandenburg Center for Regenerative Therapy (BCRT), Berlin, Germany
| | | | | | | |
Collapse
|
208
|
Goh ET, Wong E, Farhatnia Y, Tan A, Seifalian AM. Accelerating in situ endothelialisation of cardiovascular bypass grafts. Int J Mol Sci 2014; 16:597-627. [PMID: 25551605 PMCID: PMC4307264 DOI: 10.3390/ijms16010597] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Accepted: 12/19/2014] [Indexed: 12/18/2022] Open
Abstract
The patency of synthetic cardiovascular grafts in the long run is synonymous with their ability to inhibit the processes of intimal hyperplasia, thrombosis and calcification. In the human body, the endothelium of blood vessels exhibits characteristics that inhibit such processes. As such it is not surprising that research in tissue engineering is directed towards replicating the functionality of the natural endothelium in cardiovascular grafts. This can be done either by seeding the endothelium within the lumen of the grafts prior to implantation or by designing the graft such that in situ endothelialisation takes place after implantation. Due to certain difficulties identified with in vitro endothelialisation, in situ endothelialisation, which will be the focus of this article, has garnered interest in the last years. To promote in situ endothelialisation, the following aspects can be taken into account: (1) Endothelial progenital cell mobilization, adhesion and proliferation; (2) Regulating differentiation of progenitor cells to mature endothelium; (3) Preventing thrombogenesis and inflammation during endothelialisation. This article aims to review and compile recent developments to promote the in situ endothelialisation of cardiovascular grafts and subsequently improve their patency, which can also have widespread implications in the field of tissue engineering.
Collapse
Affiliation(s)
- Ee Teng Goh
- Centre for Nanotechnology & Regenerative Medicine, Research Department of Nanotechnology, UCL Division of Surgery & Interventional Science, University College London (UCL), London NW3 2QG, UK.
| | - Eleanor Wong
- Centre for Nanotechnology & Regenerative Medicine, Research Department of Nanotechnology, UCL Division of Surgery & Interventional Science, University College London (UCL), London NW3 2QG, UK.
| | - Yasmin Farhatnia
- Centre for Nanotechnology & Regenerative Medicine, Research Department of Nanotechnology, UCL Division of Surgery & Interventional Science, University College London (UCL), London NW3 2QG, UK.
| | - Aaron Tan
- Centre for Nanotechnology & Regenerative Medicine, Research Department of Nanotechnology, UCL Division of Surgery & Interventional Science, University College London (UCL), London NW3 2QG, UK.
| | - Alexander M Seifalian
- Centre for Nanotechnology & Regenerative Medicine, Research Department of Nanotechnology, UCL Division of Surgery & Interventional Science, University College London (UCL), London NW3 2QG, UK.
| |
Collapse
|
209
|
Prisco AR, Prisco MR, Carlson BE, Greene AS. TNF-α increases endothelial progenitor cell adhesion to the endothelium by increasing bond expression and affinity. Am J Physiol Heart Circ Physiol 2014; 308:H1368-81. [PMID: 25539711 DOI: 10.1152/ajpheart.00496.2014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 12/22/2014] [Indexed: 12/12/2022]
Abstract
Endothelial progenitor cells (EPCs) are a rare population of cells that participate in angiogenesis. To effectively use EPCs for regenerative therapy, the mechanisms by which they participate in tissue repair must be elucidated. This study focused on the process by which activated EPCs bind to a target tissue. It has been demonstrated that EPCs can bind to endothelial cells (ECs) through the tumore necrosis factor-α (TNF-α)-regulated vascular cell adhesion molecule 1/very-late antigen 4 (VLA4) interaction. VLA4 can bind in a high or low affinity state, a process that is difficult to experimentally isolate from bond expression upregulation. To separate these processes, a new parallel plate flow chamber was built, a detachment assay was developed, and a mathematical model was created that was designed to analyze the detachment assay results. The mathematical model was developed to predict the relative expression of EPC/EC bonds made for a given bond affinity distribution. EPCs treated with TNF-α/vehicle were allowed to bind to TNF-α/vehicle-treated ECs in vitro. Bound cells were subjected to laminar flow, and the cellular adherence was quantified as a function of shear stress. Experimental data were fit to the mathematical model using changes in bond expression or affinity as the only free parameter. It was found that TNF-α treatment of ECs increased adhesion through bond upregulation, whereas TNF-α treatment of EPCs increased adhesion by increasing bond affinity. These data suggest that injured tissue could potentially increase recruitment of EPCs for tissue regeneration via the secretion of TNF-α.
Collapse
Affiliation(s)
- Anthony R Prisco
- Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin; Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Michael R Prisco
- Exponent Engineering and Scientific Consulting, Biomedical Engineering Practice, Warrenville, Illinois; and
| | - Brian E Carlson
- Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Andrew S Greene
- Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin; Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin;
| |
Collapse
|
210
|
Hennicke T, Nieweg K, Brockmann N, Kassack MU, Gottmann K, Fritz G. mESC-based in vitro differentiation models to study vascular response and functionality following genotoxic insults. Toxicol Sci 2014; 144:138-50. [PMID: 25516496 DOI: 10.1093/toxsci/kfu264] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Because of high exposure to systemic noxae, vascular endothelial cells (EC) have to ensure distinct damage defense and regenerative mechanisms to guarantee vascular health. For meaningful toxicological drug assessments employing embryonic stem cell (ESC)-based in vitro models, functional competence of differentiated progeny and detailed knowledge regarding damage defense mechanisms are essential. Here, mouse ESCs (mESC) were differentiated into functionally competent vascular cells (EC and smooth muscle cells [SMC]). mESC, EC, and SMC were comparatively analyzed regarding DNA repair and DNA damage response (DDR). Differentiation was accompanied by both congruent and unique alterations in repair and DDR characteristics. EC and SMC shared the downregulation of genes involved cell cycle regulation and repair of DNA double-strand breaks (DSBs) and mismatches, whereas genes associated with nucleotide excision repair (NER), apoptosis, and autophagy were upregulated when compared with mESC. Expression of genes involved in base excision repair (BER) was particularly low in SMC. IR-induced formation of DSBs, as detected by nuclear γH2AX foci formation, was most efficient in SMC, the repair of DSBs was fastest in EC. Together with substantial differences in IR-induced phosphorylation of p53, Chk1, and Kap1, the data demonstrate complex alterations in DDR capacity going along with the loss of pluripotency and gain of EC- and SMC-specific functions. Notably, IR exposure of early vascular progenitors did not impair differentiation into functionally competent EC and SMC. Summarizing, mESC-based vascular differentiation models are informative to study the impact of environmental stressors on differentiation and function of vascular cells.
Collapse
Affiliation(s)
- Tatiana Hennicke
- *Institute of Toxicology, Heinrich-Heine-University Düsseldorf, Institute of Neuro- and Sensory Physiology, Heinrich-Heine-University Düsseldorf, Moorenstrasse 5 and Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Katja Nieweg
- *Institute of Toxicology, Heinrich-Heine-University Düsseldorf, Institute of Neuro- and Sensory Physiology, Heinrich-Heine-University Düsseldorf, Moorenstrasse 5 and Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Nicole Brockmann
- *Institute of Toxicology, Heinrich-Heine-University Düsseldorf, Institute of Neuro- and Sensory Physiology, Heinrich-Heine-University Düsseldorf, Moorenstrasse 5 and Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Matthias U Kassack
- *Institute of Toxicology, Heinrich-Heine-University Düsseldorf, Institute of Neuro- and Sensory Physiology, Heinrich-Heine-University Düsseldorf, Moorenstrasse 5 and Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Kurt Gottmann
- *Institute of Toxicology, Heinrich-Heine-University Düsseldorf, Institute of Neuro- and Sensory Physiology, Heinrich-Heine-University Düsseldorf, Moorenstrasse 5 and Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Gerhard Fritz
- *Institute of Toxicology, Heinrich-Heine-University Düsseldorf, Institute of Neuro- and Sensory Physiology, Heinrich-Heine-University Düsseldorf, Moorenstrasse 5 and Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| |
Collapse
|
211
|
Baddam S, Penmetsa GS, Mandalapu N, DV S, Mannem R, Alla RK, Gadde P. Immunolocalization of CD34 Positive Progenitor Cells in Diabetic and Non Diabetic Periodontitis Patients - A Comparative Study. J Clin Diagn Res 2014; 8:ZC96-9. [PMID: 25584328 PMCID: PMC4290284 DOI: 10.7860/jcdr/2014/9827.5191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 08/16/2014] [Indexed: 11/24/2022]
Abstract
BACKGROUND Little research has been documented to determine the CD34 positive cells in healthy periodontium, chronic periodontitis and in chronic periodontitis with diabetes mellitus individuals. AIM The aim of the present study was to evaluate and compare the CD34 positive progenitor cells of the gingiva in patients with healthy periodontium, chronic periodontitis and chronic periodontitis with Diabetes Mellitus. MATERIALS AND METHODS A total number of 75 patients were divided into 3 groups which included Group I (healthy periodontium), Group II (chronic periodontitis) and Group III (chronic periodontitis with diabetes mellitus). Periodontal examination included Plaque index, Gingival index, Gingival bleeding index, Probing pocket depth and Clinical attachment levels. Gingival biopsies were collected from each participant and they were fixed in formalin embedded in paraffin which was later subjected to immunohistochemical procedure with anti-CD34 (a stemness marker). T-Test and Regression analysis (R-square) was used to analyse the data. RESULTS The mean number of CD34 positive cells were higher in group III (5.71±1.97) compared to Group chronic periodontitis group I (4.98± 2.08) and II (4.48± 1.24). CONCLUSION Although CD34 is a non specific stemness marker, results suggest that there is a significant difference in the number of CD34 positive progenitor cells between Group II and Group III but no significant difference was observed between Group I, II and Group I, III.
Collapse
Affiliation(s)
- Sathyanarayana Baddam
- Senior Lecturer, Department of Periodontics, CKS Teja Institute of Dental Sciences and Research, Thirupathi, India
| | - Gautami S Penmetsa
- Professor, Department of Periodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - Narendra Mandalapu
- Reader, Department of Conservative Dentistry & Endodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - Sitaramaraju DV
- Postgraduate Student, Department of Periodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - Ravikanth Mannem
- Associate Professor, Department of Oral Pathology, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - Rama Krishna Alla
- Assistant Professor, Department of Dental Materials, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - Praveen Gadde
- Senior Lecturer, Department of Public Health Dentistry, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| |
Collapse
|
212
|
Foster WS, Suen CM, Stewart DJ. Regenerative Cell and Tissue-based Therapies for Pulmonary Arterial Hypertension. Can J Cardiol 2014; 30:1350-60. [DOI: 10.1016/j.cjca.2014.08.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 08/13/2014] [Accepted: 08/24/2014] [Indexed: 12/21/2022] Open
|
213
|
Ye LX, Yu J, Liang YX, Zeng JS, Huang RX, Liao SJ. Beclin 1 knockdown retards re-endothelialization and exacerbates neointimal formation via a crosstalk between autophagy and apoptosis. Atherosclerosis 2014; 237:146-54. [DOI: 10.1016/j.atherosclerosis.2014.08.052] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/13/2014] [Accepted: 08/28/2014] [Indexed: 01/15/2023]
|
214
|
Bi S, Tan X, Ali SQ, Wei L. Isolation and characterization of peripheral blood-derived endothelial progenitor cells from broiler chickens. Vet J 2014; 202:396-9. [DOI: 10.1016/j.tvjl.2014.08.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 06/02/2014] [Accepted: 08/14/2014] [Indexed: 12/21/2022]
|
215
|
O'Loughlin A, Kulkarni M, Vaughan EE, Creane M, Liew A, Dockery P, Pandit A, O'Brien T. Autologous circulating angiogenic cells treated with osteopontin and delivered via a collagen scaffold enhance wound healing in the alloxan-induced diabetic rabbit ear ulcer model. Stem Cell Res Ther 2014; 4:158. [PMID: 24444259 PMCID: PMC4054999 DOI: 10.1186/scrt388] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 05/24/2013] [Accepted: 12/02/2013] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION Diabetic foot ulceration is the leading cause of amputation in people with diabetes mellitus. Peripheral vascular disease is present in the majority of patients with diabetic foot ulcers. Despite standard treatments there exists a high amputation rate. Circulating angiogenic cells previously known as early endothelial progenitor cells are derived from peripheral blood and support angiogenesis and vasculogenesis, providing a potential topical treatment for non-healing diabetic foot ulcers. METHODS A scaffold fabricated from Type 1 collagen facilitates topical cell delivery to a diabetic wound. Osteopontin is a matricellular protein involved in wound healing and increases the angiogenic potential of circulating angiogenic cells. A collagen scaffold seeded with circulating angiogenic cells was developed. Subsequently the effect of autologous circulating angiogenic cells that were seeded in a collagen scaffold and topically delivered to a hyperglycemic cutaneous wound was assessed. The alloxan-induced diabetic rabbit ear ulcer model was used to determine healing in response to the following treatments: collagen seeded with autologous circulating angiogenic cells exposed to osteopontin, collagen seeded with autologous circulating angiogenic cells, collagen alone and untreated wound. Stereology was used to assess angiogenesis in wounds. RESULTS The cells exposed to osteopontin and seeded on collagen increased percentage wound closure as compared to other groups. Increased angiogenesis was observed with the treatment of collagen and collagen seeded with circulating angiogenic cells. CONCLUSIONS These results demonstrate that topical treatment of full thickness cutaneous ulcers with autologous circulating angiogenic cells increases wound healing. Cells exposed to the matricellular protein osteopontin result in superior wound healing. The wound healing benefit is associated with a more efficient vascular network. This topical therapy provides a potential novel therapy for the treatment of non-healing diabetic foot ulcers in humans.
Collapse
|
216
|
Chamberlain MD, West MED, Lam GC, Sefton MV. In vivo remodelling of vascularizing engineered tissues. Ann Biomed Eng 2014; 43:1189-200. [PMID: 25297985 DOI: 10.1007/s10439-014-1146-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 09/27/2014] [Indexed: 12/15/2022]
Abstract
A critical aspect of creating vascularized tissues is the remodelling that occurs in vivo, driven in large part by the host response to the tissue construct. Rather than a simple inflammatory response, a beneficial tissue remodelling response results in the formation of vascularised tissue. The characteristics and dynamics of this response are slowly being elucidated, especially as they are modulated by the complex interaction between the biomaterial and cellular components of the tissue constructs and the host. This process has elements that are similar to both wound healing and tumour development, and its features are illustrated by reference to the bottom-up generation of a tissue using modular constructs. These modular constructs consist of mesenchymal stromal cells (MSC) embedded in endothelial cell (EC)-covered collagen gel rods that are a few hundred microns in size. Particular attention is paid to the role of hypoxia and macrophage recruitment, as well as the paracrine effects of the MSC and EC in this host response.
Collapse
Affiliation(s)
- M Dean Chamberlain
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 164 College St., Toronto, ON, M5S 3G9, Canada
| | | | | | | |
Collapse
|
217
|
Bertelsen LB, Bohn AB, Smith M, Mølgaard B, Møller B, Stødkilde-Jørgensen H, Kristensen P. Are endothelial outgrowth cells a potential source for future re-vascularization therapy? Exp Gerontol 2014; 58:132-8. [DOI: 10.1016/j.exger.2014.07.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/25/2014] [Accepted: 07/31/2014] [Indexed: 01/02/2023]
|
218
|
Jang IH, Heo SC, Kwon YW, Choi EJ, Kim JH. Role of formyl peptide receptor 2 in homing of endothelial progenitor cells and therapeutic angiogenesis. Adv Biol Regul 2014; 57:162-72. [PMID: 25304660 DOI: 10.1016/j.jbior.2014.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 09/03/2014] [Indexed: 12/30/2022]
Abstract
Endothelial progenitor cells (EPCs) hold a great promise as a therapeutic mediator in treatment of ischemic disease conditions. The discovery of EPCs in adult blood has been a cause of significant enthusiasm in the field of endothelial cell research and numerous clinical trials have been expedited. After more than a decade of research in basic science and clinical applications, limitations and new strategies of EPC therapeutics have emerged. With various phenotypes, vague definitions, and uncertain distinction from hematopoietic cells, understanding EPC biology remains challenging. However, EPCs, still hold great hope for treatment of critical ischemic injury as low concern regarding safety can accelerate the clinical applications from basic findings. This review provides an introduction to EPC as cellular therapeutics, which highlights a recent finding that EPC homing was promoted through FPR2 signaling.
Collapse
Affiliation(s)
- Il Ho Jang
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Soon Chul Heo
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Yang Woo Kwon
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Eun Jung Choi
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Jae Ho Kim
- Department of Physiology, School of Medicine, Pusan National University, Yangsan 626-870, Republic of Korea; Research Institute of Convergence Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 626-770, Gyeongsangnam-do, Republic of Korea.
| |
Collapse
|
219
|
Yuldasheva NY, Rashid ST, Haywood NJ, Cordell P, Mughal R, Viswambharan H, Imrie H, Sukumar P, Cubbon RM, Aziz A, Gage M, Mbonye KA, Smith J, Galloway S, Skromna A, Scott DJA, Kearney MT, Wheatcroft SB. Haploinsufficiency of the Insulin-Like Growth Factor-1 Receptor Enhances Endothelial Repair and Favorably Modifies Angiogenic Progenitor Cell Phenotype. Arterioscler Thromb Vasc Biol 2014; 34:2051-8. [DOI: 10.1161/atvbaha.114.304121] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objectives—
Defective endothelial regeneration predisposes to adverse arterial remodeling and is thought to contribute to cardiovascular disease in type 2 diabetes mellitus. We recently demonstrated that the type 1 insulin-like growth factor receptor (IGF1R) is a negative regulator of insulin sensitivity and nitric oxide bioavailability. In this report, we examined partial deletion of the IGF1R as a potential strategy to enhance endothelial repair.
Approach and Results—
We assessed endothelial regeneration after wire injury in mice and abundance and function of angiogenic progenitor cells in mice with haploinsufficiency of the IGF1R (IGF1R
+/−
). Endothelial regeneration after arterial injury was accelerated in IGF1R
+/−
mice. Although the yield of angiogenic progenitor cells was lower in IGF1R
+/−
mice, these angiogenic progenitor cells displayed enhanced adhesion, increased secretion of insulin-like growth factor-1, and enhanced angiogenic capacity. To examine the relevance of IGF1R manipulation to cell-based therapy, we transfused IGF1R
+/−
bone marrow–derived CD117
+
cells into wild-type mice. IGF1R
+/−
cells accelerated endothelial regeneration after arterial injury compared with wild-type cells and did not alter atherosclerotic lesion formation.
Conclusions—
Haploinsufficiency of the IGF1R is associated with accelerated endothelial regeneration in vivo and enhanced tube forming and adhesive potential of angiogenic progenitor cells in vitro. Partial deletion of IGF1R in transfused bone marrow–derived CD117
+
cells enhanced their capacity to promote endothelial regeneration without altering atherosclerosis. Our data suggest that manipulation of the IGF1R could be exploited as novel therapeutic approach to enhance repair of the arterial wall after injury.
Collapse
Affiliation(s)
- Nadira Y. Yuldasheva
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Sheikh Tawqeer Rashid
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Natalie J. Haywood
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Paul Cordell
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Romana Mughal
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Hema Viswambharan
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Helen Imrie
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Piruthivi Sukumar
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Richard M. Cubbon
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Amir Aziz
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Matthew Gage
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Kamatamu Amanda Mbonye
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Jessica Smith
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Stacey Galloway
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Anna Skromna
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - D. Julian A. Scott
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Mark T. Kearney
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| | - Stephen B. Wheatcroft
- From the Division of Cardiovascular and Diabetes Research, Leeds Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, United Kingdom
| |
Collapse
|
220
|
Green tea extract protects endothelial progenitor cells from oxidative insult through reduction of intracellular reactive oxygen species activity. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2014; 17:702-9. [PMID: 25691948 PMCID: PMC4322155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Accepted: 01/19/2014] [Indexed: 11/02/2022]
Abstract
OBJECTIVES Many studies have reported that tea consumption decreases cardiovascular risk, but the mechanisms remain unclear. Green tea is known to have potent antioxidant and free radical scavenging activities. This study aimed to investigate whether green tea extract (GTE) can protect endothelial progenitors cells (EPCs) against oxidative stress through antioxidant mechanisms. MATERIALS AND METHODS Mononuclear cells (MNCs) were isolated from peripheral blood by density gradient centrifugation with Ficoll. The cells were then plated on fibronectin-coated culture dishes. After 7 days of culture, EPCs were characterized as adherent cells double positive for DiI-ac-LDL uptake and lectin binding. EPCs were further identified by assessing the expression of CD34/45, CD133, and KDR. EPCs were then treated with hydrogen peroxide (H2O2) at doses of 50, 100, 200 µM and incubated with or without GTE (25 µg/ml). The intracellular reactive oxygen species (ROS) levels were detected by flow cytometry using a 2',7'-dichlorofluorescein diacetate (DCF-DA) fluorescent probe. RESULTS GTE ameliorated the cell viability of EPCs induced by H2O2 at doses of 50, 100, 200 µM for about 25.47, 22.52, and 11.96% higher than controls, respectively. GTE also decreased the intracellular ROS levels of EPCs induced by H2O2 at doses of 50, 100, 200 µM for about 84.24, 92.27, and 93.72% compared to controls, respectively. CONCLUSION GTE improves cell viability by reducing the intracellular ROS accumulation in H2O2-induced EPCs.
Collapse
|
221
|
Potter CMF, Lao KH, Zeng L, Xu Q. Role of biomechanical forces in stem cell vascular lineage differentiation. Arterioscler Thromb Vasc Biol 2014; 34:2184-90. [PMID: 25012135 DOI: 10.1161/atvbaha.114.303423] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mechanical forces have long been known to play a role in the maintenance of vascular homeostasis in the mature animal and in developmental regulation in the fetus. More recently, it has been shown that stem cells play a role in vascular repair and remodeling in response to biomechanical stress. Laminar shear stress can directly activate growth factor receptors on stem/progenitor cells, initiating signaling pathways leading toward endothelial cell differentiation. Cyclic strain can stimulate stem cell differentiation toward smooth muscle lineages through different mechanisms. In vivo, blood flow in the coronary artery is significantly altered after stenting, leading to changes in biomechanical forces on the vessel wall. This disruption may activate stem cell differentiation into a variety of cells and cause delayed re-endothelialization. Based on progress in the research field, the present review aims to explore the role of mechanical forces in stem cell differentiation both in vivo and in vitro and to examine what this means for the application of stem cells in the clinic, in tissue engineering, and for the management of aberrant stem cell contribution to disease.
Collapse
Affiliation(s)
- Claire M F Potter
- From the Cardiovascular Division, King's College London, London, United Kingdom
| | - Ka Hou Lao
- From the Cardiovascular Division, King's College London, London, United Kingdom
| | - Lingfang Zeng
- From the Cardiovascular Division, King's College London, London, United Kingdom
| | - Qingbo Xu
- From the Cardiovascular Division, King's College London, London, United Kingdom.
| |
Collapse
|
222
|
Abstract
A series of studies has been presented in the search for proof of circulating and resident vascular progenitor cells, which can differentiate into endothelial and smooth muscle cells and pericytes in animal and human studies. In terms of pluripotent stem cells, including embryonic stem cells, iPS, and partial-iPS cells, they display a great potential for vascular lineage differentiation. Development of stem cell therapy for treatment of vascular and ischemic diseases remains a major challenging research field. At the present, there is a clear expansion of research into mechanisms of stem cell differentiation into vascular lineages that are tested in animal models. Although there are several clinical trials ongoing that primarily focus on determining the benefits of stem cell transplantation in ischemic heart or peripheral ischemic tissues, intensive investigation for translational aspects of stem cell therapy would be needed. It is a hope that stem cell therapy for vascular diseases could be developed for clinic application in the future.
Collapse
Affiliation(s)
- Li Zhang
- From the Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China (L.Z.); and Department of Cardiology, Cardiovascular Division, King's College London BHF Centre, London, United Kingdom (Q.X.)
| | - Qingbo Xu
- From the Department of Cardiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China (L.Z.); and Department of Cardiology, Cardiovascular Division, King's College London BHF Centre, London, United Kingdom (Q.X.).
| |
Collapse
|
223
|
Lanzola E, Farha S, Erzurum SC, Asosingh K. Bone marrow-derived vascular modulatory cells in pulmonary arterial hypertension. Pulm Circ 2014; 3:781-91. [PMID: 25006394 DOI: 10.1086/674769] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 06/28/2013] [Indexed: 12/23/2022] Open
Abstract
Hematopoiesis and vascular homeostasis are closely linked to each other via subsets of circulating bone marrow-derived cells with potent activity to repair endothelial injury and promote angiogenesis. As a consequence, abnormalities in hematopoiesis will eventually affect vascular health. Pulmonary arterial hypertension (PAH) is a vascular disease characterized by severe remodeling of the pulmonary artery wall. Over the past decade, circulating hematopoietic cells have been assigned an increasing role in the remodeling, such that these cells have been used in new therapeutic strategies. More recently, research has been extended to the bone marrow where these cells originate to identify abnormalities in hematopoiesis that may underlie PAH. Here, we review the current literature and identify gaps in knowledge of the myeloid effects on PAH.
Collapse
Affiliation(s)
- Emily Lanzola
- Department of Pathobiology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Samar Farha
- Department of Pathobiology, Cleveland Clinic, Cleveland, Ohio, USA ; Lerner Research Institute and Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Serpil C Erzurum
- Department of Pathobiology, Cleveland Clinic, Cleveland, Ohio, USA ; Lerner Research Institute and Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Kewal Asosingh
- Department of Pathobiology, Cleveland Clinic, Cleveland, Ohio, USA
| |
Collapse
|
224
|
Berezin AE, Kremzer AA. Relationship between circulating endothelial progenitor cells and insulin resistance in non-diabetic patients with ischemic chronic heart failure. Diabetes Metab Syndr 2014; 8:138-144. [PMID: 25082501 DOI: 10.1016/j.dsx.2014.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AIM The objective of this study was to assess a relationship between insulin resistance (IR) and counts of CD45(-)CD34(+), CD14(+)CD309(+), and CD14(+)CD309(+)Tie2(+) phenotyped circulating endothelial progenitor cells (EPCs) in patients with ischemic chronic heart failure (CHF). METHODS The study involved 300 CHF patients (186 males) aged 48-62 years with angiografically proven coronary artery disease and/or previously defined myocardial infarction. Insulin resistance was assessed by the homeostasis model assessment for insulin resistance (HOMA-IR). EPC populations were phenotyped by flow cytofluorimetry. RESULTS Circulating EPCs counts were statistically significantly lower in CHF patients with IR than in patients without IR. We found that the most valuable multivariable predictors of the depletion of the CD45(+)CD34(+) EPCs were NT-pro-brain natriuretic peptide (BNP) (1.32; 95% CI=1.19-2.77; P=0.001), left ventricular ejection fraction (OR=1.30; 95% CI=1.09-1.60; P=0.002), NYHA class (OR=1.12; 95% CI=1.02-1.19; P=0.001). NT-pro-BNP (OR=1.45; 95% CI=1.15-2.90; P=0.003), left ventricular ejection fraction (OR=1.32; 95% CI=1.11-1.65; P=0.001) were found as powerful predictors for depletion in CD45(-)CD34(+) EPCs. We also identified six independent variables with high predictive value for depletion of CD14(+)CD309(+) EPCs: NT-pro-BNP (OR=1.41; 95% CI=1.15-2.90; P=0.003), left ventricular ejection fraction (OR=1.18; 95% CI=1.10-1.76; P=0.036), NYHA class (OR=1.15; 95% CI=1.07-1.22; P=0.001), hs-C reactive protein (OR=1.02; 95% CI=1.01-1.05; P=0.012). As independent multivariable predictors for depletion in CD14(+)CD309(+)Tie2(+) EPCs were selected five variables: NT-pro-BNP (OR=1.65; 95% CI=1.44-4.70; P=0.006), left ventricular ejection fraction (OR=1.07; 95% CI=1.02-1.12; P=0.018), NYHA class (OR=1.13; 95% CI=1.06-1.21; P=0.001), hs-C-reactive protein (OR=1.08; 95% CI=1.03-1.16; P=0.002). CONCLUSION IR may be an additional factor contributing decreased circulating level of proangiogenic EPCs in non-diabetic CHF patients.
Collapse
Affiliation(s)
- Alexander E Berezin
- State Medical University, Internal Medicine Department, Zaporozhye, Ukraine.
| | - Alexander A Kremzer
- State Medical University, Clinical Pharmacology Department, Zaporozhye, Ukraine
| |
Collapse
|
225
|
Hubert L, Darbousset R, Panicot-Dubois L, Robert S, Sabatier F, Fallague K, Dignat-George F, Dubois C. Neutrophils recruit and activate human endothelial colony-forming cells at the site of vessel injury via P-selectin glycoprotein ligand-1 and L-selectin. J Thromb Haemost 2014; 12:1170-81. [PMID: 24606340 DOI: 10.1111/jth.12551] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 02/12/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND Endothelial colony-forming cells (ECFCs) represent a subpopulation of circulating endothelial progenitor cells that have been implicated in vascular repair. However, no study has evaluated the role of ECFCs in endothelial injury leading to thrombus formation. OBJECTIVE We investigated the kinetics, mechanisms and role of ECFC recruitment in the dynamics of thrombus formation and stabilization. METHODS AND RESULTS Using digital intravital microscopy in living mice, we show that ECFCs, but not mature endothelial cells, adhere to sites of laser-induced injury and do not affect the kinetics of thrombus formation. This interaction occurs once the platelet thrombus has been stabilized, and is dependent on the presence of neutrophils but not platelets or fibrin. In vitro, the interaction of the activated neutrophils with activated endothelial cells is a prerequisite for the capture of ECFCs. Neutrophils activate ECFCs and increase their angiogenic properties, such as their ability to migrate and to form pseudocapillaries. This newly identified interaction of ECFCs with the neutrophils is mediated by the P-selectin glycoprotein ligand-1 (PSGL-1)/L-selectin axis both in vitro and in vivo. CONCLUSIONS This study is the first demonstration that neutrophils present at the site of injury recruit ECFCs via PSGL-1/L-selectin. This interaction between neutrophils and ECFCs could play a key role in the regeneration of injured vessels in pathophysiologic conditions.
Collapse
Affiliation(s)
- L Hubert
- Aix Marseille Université, VRCM INSERM UMR-S1076, Marseille, France
| | | | | | | | | | | | | | | |
Collapse
|
226
|
Basini G, Falasconi I, Bussolati S, Grolli S, Ramoni R, Grasselli F. Isolation of endothelial cells and pericytes from swine corpus luteum. Domest Anim Endocrinol 2014; 48:100-9. [PMID: 24906935 DOI: 10.1016/j.domaniend.2014.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 02/25/2014] [Accepted: 02/26/2014] [Indexed: 12/15/2022]
Abstract
From an angiogenesis perspective, the ovary offers a unique opportunity to study the physiological development of blood vessels. The first purpose of this work was to set up a protocol for the isolation of pig corpus luteum endothelial cells, which were characterized by both morphologic parameters and the expression of typical molecular markers; we also verified their ability to form capillary-like structures in a 3-dimensional matrix, their response to hypoxia and their migration in the presence of vascular endothelial growth factor (VEGF). The effectiveness of our isolation protocol was confirmed by the characteristic "cobblestone shape" of isolated cells at confluence as well as their expression of all the examined endothelial markers. Our data also showed a significant cell production of VEGF and nitric oxide. Isolated endothelial cells were also responsive to hypoxia by increasing the expression and production of VEGF and decreasing that of nitric oxide. In the angiogenesis bioassay, cells displayed the ability of forming capillary-like structures and also exhibited a significant migration in the scratch test. Our data suggest that the isolation of luteal endothelial cells represents a promising tool in experiments designed to clarify the biology of the angiogenic process. Furthermore, we have demonstrated that the isolated population comprises a subset of cells with a multidifferentiative capacity toward the chondrocytic and adipocytic phenotypes. These data suggest the presence of a perivascular or adventitial cell niche in the vascular wall of the corpus luteum populated with cells showing mesenchymal stem cell-like features, as already demonstrated for the adipose tissue and endometrium.
Collapse
Affiliation(s)
- G Basini
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Parma, Italy.
| | - I Falasconi
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Parma, Italy
| | - S Bussolati
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Parma, Italy
| | - S Grolli
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Parma, Italy
| | - R Ramoni
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Parma, Italy
| | - F Grasselli
- Dipartimento di Scienze Medico-Veterinarie, Università degli Studi di Parma, Parma, Italy
| |
Collapse
|
227
|
Zhu X, Zheng X, Wu Y. Cleaved high molecular weight kininogen stimulates JNK/FOXO4/MnSOD pathway for induction of endothelial progenitor cell senescence. Biochem Biophys Res Commun 2014; 450:1261-5. [PMID: 24984152 DOI: 10.1016/j.bbrc.2014.06.112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 06/23/2014] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Recently we have reported that cleaved high molecular weight kininogen (HKa) accelerates the onset of endothelial progenitor cells (EPCs) senescence by induction of reactive oxygen species (ROS). However, the mechanisms by which HKa induces production of ROS remain unknown. In this study, we have shown that HKa induces EPC senescence via stimulation of c-Jun N-terminal kinases (JNK)-related pathway. METHODS AND RESULTS Treatment of human EPCs with HKa for 72h stimulated JNK phosphorylation at Thr183/Tyr185, and FOXO4 phosphorylation at Thr451, Concomitantly, upregulated the expression of MnSOD at protein and mRNA levels in a concentration-dependent manner. HKa increased intracellular level of H2O2, without affecting the expression of catalase. To narrow down the functional domain of HKa, recombinant proteins of human HK heavy chain (HC, 19-380aa) and light chain (LC, 390-644aa) were generated. HC, but not LC, increased senescence of EPCs and intracellular ROS levels, to a similar extent with HKa. Moreover, HC at 50 nM increased FOXO4 phosphorylation at Thr451 and the protein level of MnSOD in EPCs. CONCLUSION These results demonstrate that HKa accelerates the onset of EPC senescence by stimulating JNK/FOXO4/MnSOD pathway, its effect is mediated by the HC.
Collapse
Affiliation(s)
- Xuemei Zhu
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Xichen Zheng
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Yi Wu
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China; Sol Sherry Thrombosis Research Center, Temple University School of Medicine, 3420 North Broad Street, Philadelphia, PA 19140, USA.
| |
Collapse
|
228
|
Borghesi A, Cova C, Gazzolo D, Stronati M. Stem cell therapy for neonatal diseases associated with preterm birth. J Clin Neonatol 2014; 2:1-7. [PMID: 24027735 PMCID: PMC3761956 DOI: 10.4103/2249-4847.109230] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
In the last decades, the prevention and treatment of neonatal respiratory distress syndrome with antenatal steroids and surfactant replacement allowed the survival of infants born at extremely low gestational ages. These extremely preterm infants are highly vulnerable to the detrimental effects of oxidative stress and infection, and are prone to develop lung and brain diseases that eventually evolve in severe sequelae: The so-called new bronchopulmonary dysplasia (BPD) and the noncystic, diffuse form of periventricular leukomalacia (PVL). Tissue simplification and developmental arrest (larger and fewer alveoli and hypomyelination in the lungs and brain, respectively) appears to be the hallmark of these emerging sequelae, while fibrosis is usually mild and contributes to a lesser extent to their pathogenesis. New data suggest that loss of stem/progenitor cell populations in the developing brain and lungs may underlie tissue simplification. These observations constitute the basis for the application of stem cell-based protocols following extremely preterm birth. Transplantation of different cell types (including, but not limited to, mesenchymal stromal cells, endothelial progenitor cells, human amnion epithelial cells) could be beneficial in preterm infants for the prevention and/or treatment of BPD, PVL and other major sequelae of prematurity. However, before this new knowledge can be translated into clinical practice, several issues still need to be addressed in preclinical in vitro and in vivo models.
Collapse
Affiliation(s)
- Alessandro Borghesi
- Neonatal Intensive Care Unit and Laboratory of Neonatal Immunology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | | | | |
Collapse
|
229
|
Abstract
Numerous clinical trials have demonstrated early reductions in cardiovascular events occurring independently of the lipid-lowering effects of statins. These pleiotropic effects have been attributed to antiinflammatory properties, to atherosclerotic plaque stabilization, and more recently to mobilization of endothelial progenitor cells (EPCs). Our aim was to evaluate the evidence supporting statin-induced EPC mobilization in humans. We, therefore, performed a computerized literature search and systematic review of randomized trials to determine the effect of statin therapy and statin dosing on circulating EPC numbers. Our literature search identified 10 studies including 479 patients which met inclusion criteria with publication dates ranging from 2005 to 2011. Seven studies compared statin to nonstatin regimens whereas 3 studied low versus high-dose statin therapy. Reported increases in EPC number ranged from 25.8% to 223.5% with a median reported increase of 70.2% when compared to nonstatin regimens with 7 of 10 studies reporting significant increases. Considerable heterogeneity exists in regard to patient population, statin regimens, and the definition of an EPC within the identified studies. In conclusion, randomized studies in humans suggest that statin therapy mobilizes EPCs into the circulation. Larger randomized studies using uniform definitions are needed to definitively establish this effect.
Collapse
|
230
|
Martin-Ramirez J, Kok MGM, Hofman M, Bierings R, Creemers EE, Meijers JCM, Voorberg J, Pinto-Sietsma SJ. Individual with subclinical atherosclerosis have impaired proliferation of blood outgrowth endothelial cells, which can be restored by statin therapy. PLoS One 2014; 9:e99890. [PMID: 24955753 PMCID: PMC4067291 DOI: 10.1371/journal.pone.0099890] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 05/20/2014] [Indexed: 12/12/2022] Open
Abstract
Background To study the regenerative capacity of the endothelium in patients with coronary artery disease (CAD), we cultured blood outgrowth endothelial cells (BOECs) of patients with premature CAD and their first degree relatives (FDR). Additionally we evaluated the influence of statin treatment on circulating BOEC precursors in subjects with subclinical atherosclerosis. Methods and Results Patients with premature CAD (men <51 yr, women <56 yr) and their FDRs were included. Based on coronary calcification (CAC) scores FDRs were divided in a group of healthy subjects (CAC = 0) and subjects with subclinical atherosclerosis (CAC>0). We did not observe differences in the number of BOEC colonies and proliferation between premature CAD patients and FDRs. FDRs with subclinical atherosclerosis had lower colony numbers compared with healthy FDRs, however this was not statistically significant, and BOEC proliferation was significantly impaired (OR = 0.45, 95% CI 0.21–0.96). Unexpectedly, the number of BOEC colonies and BOEC proliferation were similar for premature CAD patients and healthy FDRs. Since a considerable number of premature CAD patients used statins, we studied the number of BOEC precursors as well as their proliferative capacity in ten individuals with subclinical atherosclerosis, before and after statin therapy. Interestingly, FDRs with subclinical atherosclerosis showed a significant increase in the number of BOEC colonies after statin therapy. Conclusion BOEC proliferation of subjects with subclinical atherosclerosis is impaired compared with healthy controls. In these subjects, statin therapy significantly increased the number of circulating BOEC precursors as well as their proliferative capacity, revealing a beneficial effect of statins on endothelial regeneration.
Collapse
Affiliation(s)
- Javier Martin-Ramirez
- Department of Plasma Proteins, Sanquin-AMC Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Maayke G. M. Kok
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
- Department of Experimental Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - Menno Hofman
- Department of Plasma Proteins, Sanquin-AMC Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Ruben Bierings
- Department of Plasma Proteins, Sanquin-AMC Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Esther E. Creemers
- The Heart Failure Research Center, Academic Medical Center, Amsterdam, The Netherlands
| | - Joost C. M. Meijers
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
- Department of Experimental Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - Jan Voorberg
- Department of Plasma Proteins, Sanquin-AMC Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Sara-Joan Pinto-Sietsma
- Department of Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, Amsterdam, The Netherlands
- * E-mail:
| |
Collapse
|
231
|
Baldwin J, Antille M, Bonda U, De-Juan-Pardo EM, Khosrotehrani K, Ivanovski S, Petcu EB, Hutmacher DW. In vitro pre-vascularisation of tissue-engineered constructs A co-culture perspective. Vasc Cell 2014; 6:13. [PMID: 25071932 PMCID: PMC4112973 DOI: 10.1186/2045-824x-6-13] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 06/12/2014] [Indexed: 12/29/2022] Open
Abstract
In vitro pre-vascularization is one of the main vascularization strategies in the tissue engineering field. Culturing cells within a tissue-engineered construct (TEC) prior to implantation provides researchers with a greater degree of control over the fate of the cells. However, balancing the diverse range of different cell culture parameters in vitro is seldom easy and in most cases, especially in highly vascularized tissues, more than one cell type will reside within the cell culture system. Culturing multiple cell types in the same construct presents its own unique challenges and pitfalls. The following review examines endothelial-driven vascularization and evaluates the direct and indirect role other cell types have in vessel and capillary formation. The article then analyses the different parameters researchers can modulate in a co-culture system in order to design optimal tissue-engineered constructs to match desired clinical applications.
Collapse
Affiliation(s)
- Jeremy Baldwin
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4059, Australia
| | - Mélanie Antille
- Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Ulrich Bonda
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4059, Australia
- Leibniz Institute of Polymer Research Dresden (IPF) & Max Bergmann Center of Biomaterials Dresden (MBC), Hohe Str. 6, 01069, Dresden, Germany
| | - Elena M De-Juan-Pardo
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4059, Australia
| | - Kiarash Khosrotehrani
- University of Queensland, UQ Centre for Clinical Research, Royal Brisbane & Women's Hospital Campus, Building 71/918, Herston, QLD 4029, Australian
- The University of Queensland, UQ Diamantina Institute, Translational Research Institute, Brisbane, QLD, Australia
| | - Saso Ivanovski
- Griffith Health Institute, Regenerative Medicine Centre, Gold Coast, QLD 4222, Australia
| | - Eugen Bogdan Petcu
- Griffith Health Institute, Regenerative Medicine Centre, Gold Coast, QLD 4222, Australia
| | - Dietmar Werner Hutmacher
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4059, Australia
| |
Collapse
|
232
|
Raz O, Lev DL, Battler A, Lev EI. Pathways mediating the interaction between endothelial progenitor cells (EPCs) and platelets. PLoS One 2014; 9:e95156. [PMID: 24901498 PMCID: PMC4046960 DOI: 10.1371/journal.pone.0095156] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 03/24/2014] [Indexed: 12/21/2022] Open
Abstract
Introduction Endothelial progenitor cells (EPCs) have an important role in the process of vascular injury repair. Platelets have been shown to mediate EPC recruitment, maturation and differentiation. Yet, the mechanism underlying this interaction is unclear. We, therefore, aimed to examine whether direct contact between platelets and EPCs is essential for the positive platelets-EPC effect, and to investigate the main mediators responsible for the improvement in EPCs function. Methods Human EPCs were isolated from donated buffy coats and cultured in either: 1. EPCs co-incubated with platelets placed in a 1 µm-Boyden chamber. 2. EPCs incubated with or without platelets in the presence or absence of bFGF/PDGF Receptor inhibitor (PDGFRI). After 7 days culture, EPCs ability to form colonies, proliferate and differentiate was examined. Culture supernatants were collected and growth factors levels were evaluated using ELISA. Growth factors mRNA levels in EPCs were evaluated using RT-PCR. Results and Conclusions After 7 days culture, EPCs functional properties were higher following co-incubation with platelets (directly or indirectly), implying that direct contact is not essential for the platelet’s positive effect on EPCs. This effect was reduced by PDGFRI inhibition. Additionally, higher levels of PDGFB in EPCs-platelets supernatant and higher levels of PDGFC mRNA in EPCs co-incubated with platelets were found. In contrast, FGF and other potential mediators that were examined and inhibited did not significantly affect the interaction between platelets and EPCs. Thus, we conclude that PDGF has a central role in the interaction between platelets and EPCs. Further study is required to examine additional aspects of EPC-platelets interaction.
Collapse
Affiliation(s)
- Oshrat Raz
- Cardiology Department, Rabin Medical Center, Jabotinsky St, Petah- Tikva, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- * E-mail:
| | - Dorit L. Lev
- The Felsenstein Medical Research Institute, Petah-Tikva, Israel
- Cardiology Department, Rabin Medical Center, Jabotinsky St, Petah- Tikva, Israel
| | | | - Eli I. Lev
- The Felsenstein Medical Research Institute, Petah-Tikva, Israel
- Cardiology Department, Rabin Medical Center, Jabotinsky St, Petah- Tikva, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| |
Collapse
|
233
|
Activation of liver X receptor enhances the proliferation and migration of endothelial progenitor cells and promotes vascular repair through PI3K/Akt/eNOS signaling pathway activation. Vascul Pharmacol 2014; 62:150-61. [PMID: 24892989 DOI: 10.1016/j.vph.2014.05.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 04/21/2014] [Accepted: 05/26/2014] [Indexed: 11/23/2022]
Abstract
Vascular endothelial injury is a major cause of many cardiovascular diseases. The proliferation and migration of endothelial progenitor cells (EPCs) play a pivotal role in endothelial regeneration and repair after vascular injury. Recently, liver X receptor (LXR) activation has been suggested as a potential target for novel therapeutic interventions in the treatment of cardiovascular disease. However, the effects of LXR activation on endothelial regeneration and repair, as well as EPC function, have not been investigated. In the present study, we demonstrate that LXRs, including LXRα and LXRβ, are expressed and functional in rat bone marrow-derived EPCs. Treatment with an LXR agonist, TO901317 (TO) or GW3965 (GW), significantly increased the proliferation and migration of EPCs, as well as Akt and eNOS phosphorylation in EPCs. Moreover, LXR agonist treatment enhanced the expression and secretion of vascular endothelial growth factor in EPCs. LXR agonists accelerated re-endothelialization in injured mouse carotid arteries in vivo. These data confirm that LXR activation may improve EPC function and endothelial regeneration and repair after vascular injury by activating the PI3K/Akt/eNOS pathway. We conclude that LXRs may be attractive targets for drug development in the treatment of cardiovascular diseases associated with vascular injury.
Collapse
|
234
|
Berezin AE, Kremzer AA. Circulating endothelial progenitor cells as markers for severity of ischemic chronic heart failure. J Card Fail 2014; 20:438-447. [PMID: 24594088 DOI: 10.1016/j.cardfail.2014.02.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 02/21/2014] [Accepted: 02/24/2014] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Despite a high potential of endothelial progenitor cells (EPCs) for diagnostic purposes, the EPC role in developing ischemic chronic heart failure (CHF) has not been determined obviously. The objective of this study was to assess the counts of CD45(+)CD34(+), CD45(-)CD34(+), CD14(+)CD309(+), and CD14(+)CD309(+)Tie2(+) phenotyped circulating EPCs of various subpopulations in patients with ischemic CHF. METHODS AND RESULTS The study involved 153 patients (86 male), aged 48-62 years, with angiographically proven coronary artery disease (CAD) and 25 healthy volunteers. CHF was diagnosed in 109 patients (71.2%). Mononuclear cell populations were phenotyped by flow cytofluorimetry. Cardiovascular risk factors, such as type 2 diabetes mellitus, hyperlipidemia, arterial hypertension, and adherence to smoking, may have a negative effect on circulating EPC counts in CAD patients regardless of the presence of CHF. The depletion of the CD14(+)CD309(+)- and CD14(+)CD309(+)Tie2(+)-phenotyped circulating EPC counts is associated with the severity of left ventricular dysfunction, whereas the CD45(+)CD34(+)- and CD45(-)CD34(+)-mononuclear cell counts are more representative of the severity of atherosclerotic coronary artery lesions. CONCLUSION The authors found that New York Heart Association functional class of CHF, left ventricular ejection fraction <42%, the N-terminal pro-B-type natriuretic peptide level >554 pg/mL, and Е/Еm ratio >15 U had the highest predictive value for the depletion of the EPC count in CAD patients.
Collapse
Affiliation(s)
- Alexander E Berezin
- Internal Medicine Department, State Medical University, Zaporozhye, Ukraine.
| | - Alexander A Kremzer
- Clinical Pharmacology Department, State Medical University, Zaporozhye, Ukraine
| |
Collapse
|
235
|
de Cavanagh EMV, González SA, Inserra F, Forcada P, Castellaro C, Chiabaut-Svane J, Obregón S, Casarini MJ, Kempny P, Kotliar C. Sympathetic predominance is associated with impaired endothelial progenitor cells and tunneling nanotubes in controlled-hypertensive patients. Am J Physiol Heart Circ Physiol 2014; 307:H207-15. [PMID: 24858852 DOI: 10.1152/ajpheart.00955.2013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Early endothelial progenitor cells (early EPC) and late EPC are involved in endothelial repair and can rescue damaged endothelial cells by transferring organelles through tunneling nanotubes (TNT). In rodents, EPC mobilization from the bone marrow depends on sympathetic nervous system activity. Indirect evidence suggests a relation between autonomic derangements and human EPC mobilization. We aimed at testing whether hypertension-related autonomic imbalances are associated with EPC impairment. Thirty controlled-essential hypertensive patients [systolic blood pressure/diastolic blood pressure = 130(120-137)/85(61-88) mmHg; 81.8% male] and 20 healthy normotensive subjects [114(107-119)/75(64-79) mmHg; 80% male] were studied. Mononuclear cells were cultured on fibronectin- and collagen-coated dishes for early EPC and late EPC, respectively. Low (LF)- and high (HF)-frequency components of short-term heart rate variability were analyzed during a 5-min rest, an expiration/inspiration maneuver, and a Stroop color-word test. Modulations of cardiac sympathetic and parasympathetic activities were evaluated by LF/HF (%) and HF power (ms(2)), respectively. In controlled-hypertensive patients, the numbers of early EPC, early EPC that emitted TNT, late EPC, and late EPC that emitted TNT were 41, 77, 50, and 88% lower than in normotensive subjects (P < 0.008), respectively. In controlled-hypertensive patients, late EPC number was positively associated with cardiac parasympathetic reserve during the expiration/inspiration maneuver (rho = 0.45, P = 0.031) and early EPC with brachial flow-mediated dilation (rho = 0.655; P = 0.049); also, late TNT number was inversely related to cardiac sympathetic response during the stress test (rho = -0.426, P = 0.045). EPC exposure to epinephrine or norepinephrine showed negative dose-response relationships on cell adhesion to fibronectin and collagen; both catecholamines stimulated early EPC growth, but epinephrine inhibited late EPC growth. In controlled-hypertensive patients, sympathetic overactivity/parasympathetic underactivity were negatively associated with EPC, suggesting that reducing sympathetic/increasing parasympathetic activation might favor endothelial repair.
Collapse
Affiliation(s)
- Elena M V de Cavanagh
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - Sergio A González
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - Felipe Inserra
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and
| | - Pedro Forcada
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - Carlos Castellaro
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - Jorge Chiabaut-Svane
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - Sebastián Obregón
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - María Jesús Casarini
- Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - Pablo Kempny
- Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| | - Carol Kotliar
- School of Biomedical Sciences, Austral University, Buenos Aires, Argentina; and Arterial Hypertension Center, Cardiology Department, Austral University Hospital, Buenos Aires, Argentina
| |
Collapse
|
236
|
Wang Z, Moran E, Ding L, Cheng R, Xu X, Ma JX. PPARα regulates mobilization and homing of endothelial progenitor cells through the HIF-1α/SDF-1 pathway. Invest Ophthalmol Vis Sci 2014; 55:3820-32. [PMID: 24845641 DOI: 10.1167/iovs.13-13396] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The mechanism for the antiangiogenic activity of peroxisome proliferator-activated receptor alpha (PPARα) remains incompletely understood. Endothelial progenitor cells (EPC) are known to participate in neovascularization (NV). The purpose of this study was to investigate whether PPARα regulates EPC during retinal NV. METHODS Retinal NV was induced by oxygen-induced retinopathy (OIR). Mice with OIR were injected intraperitoneally with the PPARα agonist fenofibric acid (FA) or with adenovirus expressing PPARα (Ad-PPARα). Flow cytometry was used to quantify circulating and retinal EPC. Serum stromal cell-derived factor 1 (SDF-1) levels were measured by ELISA. Hypoxia was induced in primary human retinal capillary endothelial cells (HRCEC) and mouse brain endothelial cells (MBEC) by CoCl2. Levels of SDF-1 and hypoxia-inducible factor 1 alpha (HIF-1α) were measured by Western blotting. RESULTS Fenofibric acid and overexpression of PPARα attenuated the increase of circulating and retinal EPC, correlating with suppressed retinal NV in OIR mice at P17. The PPARα knockout enhanced the OIR-induced increase of circulating and retinal EPC. Fenofibric acid decreased retinal HIF-1α and SDF-1 levels as well as serum SDF-1 levels in the OIR model. In HRCEC, PPARα inhibited HIF-1α nuclear translocation and SDF-1 overexpression induced by hypoxia. Further, MBEC from PPARα(-/-) mice showed more prominent activation of HIF-1α and overexpression of SDF-1 induced by hypoxia, compared with the wild-type (WT) MBEC. PPARα failed to block SDF-1 overexpression induced by a constitutively active mutant of HIF-1α, suggesting that regulation of SDF-1 by PPARα was through blockade of HIF-1α activation. CONCLUSIONS Peroxisome proliferator-activated receptor alpha suppresses ischemia-induced EPC mobilization and homing through inhibition of the HIF-1α/SDF-1 pathway. This represents a novel molecular mechanism for PPARα's antiangiogenic effects.
Collapse
Affiliation(s)
- Zhongxiao Wang
- Department of Ophthalmology, Shanghai First People's Hospital Affiliated with Shanghai Jiaotong University, Shanghai, China Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Elizabeth Moran
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Lexi Ding
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Cheng
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Xun Xu
- Department of Ophthalmology, Shanghai First People's Hospital Affiliated with Shanghai Jiaotong University, Shanghai, China
| | - Jian-xing Ma
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| |
Collapse
|
237
|
Yuan Q, Bai YP, Shi RZ, Liu SY, Chen XM, Chen L, Li YJ, Hu CP. Regulation of endothelial progenitor cell differentiation and function by dimethylarginine dimethylaminohydrolase 2 in an asymmetric dimethylarginine-independent manner. Cell Biol Int 2014; 38:1013-22. [DOI: 10.1002/cbin.10288] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 03/20/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Qiong Yuan
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
- Department of Pharmacology; Medical College; Wuhan University of Science and Technology; Wuhan 430081 China
| | - Yong-Ping Bai
- Department of Geriatric Medicine; Xiangya Hospital; Central South University; Changsha 410008 China
| | - Rui-Zheng Shi
- Department of Cardiovascular Medicine; Xiangya Hospital; Central South University; Changsha 410008 China
| | - Si-Yu Liu
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Xu-Meng Chen
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Lei Chen
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Yuan-Jian Li
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Chang-Ping Hu
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| |
Collapse
|
238
|
Sipos PI, Rens W, Schlecht H, Fan X, Wareing M, Hayward C, Hubel CA, Bourque S, Baker PN, Davidge ST, Sibley CP, Crocker IP. Uterine vasculature remodeling in human pregnancy involves functional macrochimerism by endothelial colony forming cells of fetal origin. Stem Cells 2014; 31:1363-70. [PMID: 23554274 PMCID: PMC3813980 DOI: 10.1002/stem.1385] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 02/26/2013] [Accepted: 03/04/2013] [Indexed: 12/19/2022]
Abstract
The potency of adult-derived circulating progenitor endothelial colony forming cells (ECFCs) is drastically surpassed by their fetal counterparts. Human pregnancy is associated with robust intensification of blood flow and vascular expansion in the uterus, crucial for placental perfusion and fetal supply. Here, we investigate whether fetal ECFCs transmigrate to maternal bloodstream and home to locations of maternal vasculogenesis, primarily the pregnant uterus. In the first instance, endothelial-like cells, originating from mouse fetuses expressing paternal eGFP, were identified within uterine endothelia. Subsequently, LacZ or enhanced green fluorescent protein (eGFP)-labeled human fetal ECFCs, transplanted into immunodeficient (NOD/SCID) fetuses on D15.5 pregnancy, showed similar integration into the mouse uterus by term. Mature endothelial controls (human umbilical vein endothelial cells), similarly introduced, were unequivocally absent. In humans, SRY was detected in 6 of 12 myometrial microvessels obtained from women delivering male babies. The copy number was calculated at 175 [IQR 149-471] fetal cells per millimeter square endothelium, constituting 12.5% of maternal vessel lumina. Cross-sections of similar human vessels, hybridized for Y-chromosome, positively identified endothelial-associated fetal cells. It appears that through ECFC donation, fetuses assist maternal uterine vascular expansion in pregnancy, potentiating placental perfusion and consequently their own fetal supply. In addition to fetal growth, this cellular mechanism holds implications for materno-fetal immune interactions and long-term maternal vascular health.
Collapse
Affiliation(s)
- Peter I Sipos
- Maternal and Fetal Health Research Centre, University of Manchester, Manchester, UK
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
239
|
Heyboer M, Milovanova TN, Wojcik S, Grant W, Chin M, Hardy KR, Lambert DS, Logue C, Thom SR. CD34+/CD45-dim stem cell mobilization by hyperbaric oxygen - changes with oxygen dosage. Stem Cell Res 2014; 12:638-45. [PMID: 24642336 PMCID: PMC4037447 DOI: 10.1016/j.scr.2014.02.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 02/14/2014] [Accepted: 02/22/2014] [Indexed: 11/16/2022] Open
Abstract
Because hyperbaric oxygen treatment mobilizes bone marrow derived-stem/progenitor cells by a free radical mediated mechanism, we hypothesized that there may be differences in mobilization efficiency based on exposure to different oxygen partial pressures. Blood from twenty consecutive patients was obtained before and after the 1st, 10th and 20th treatment at two clinical centers using protocols involving exposures to oxygen at either 2.0 or 2.5 atmospheres absolute (ATA). Post-treatment values of CD34+, CD45-dim leukocytes were always 2-fold greater than the pre-treatment values for both protocols. Values for those treated at 2.5 ATA were significantly greater than those treated at 2.0 ATA by factors of 1.9 to 3-fold after the 10th and before and after the 20th treatments. Intracellular content of hypoxia inducible factors -1, -2, and -3, thioredoxin-1 and poly-ADP-ribose polymerase assessed in permeabilized CD34+ cells with fluorophore-conjugated antibodies were twice as high in all post- versus pre-treatment samples with no significant differences between 2.0 and 2.5 ATA protocols. We conclude that putative progenitor cell mobilization is higher with 2.5 versus 2.0 ATA treatments, and all newly mobilized cells exhibit higher concentrations of an array of regulatory proteins.
Collapse
Affiliation(s)
- Marvin Heyboer
- Department of Emergency Medicine, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Tatyana N Milovanova
- Institute for Environmental Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Susan Wojcik
- Department of Emergency Medicine, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - William Grant
- Department of Emergency Medicine, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Mary Chin
- Institute for Environmental Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kevin R Hardy
- Institute for Environmental Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - David S Lambert
- Institute for Environmental Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Christopher Logue
- Institute for Environmental Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Stephen R Thom
- Institute for Environmental Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| |
Collapse
|
240
|
Muñoz-Hernandez R, Miranda ML, Stiefel P, Lin RZ, Praena-Fernández JM, Dominguez-Simeon MJ, Villar J, Moreno-Luna R, Melero-Martin JM. Decreased level of cord blood circulating endothelial colony-forming cells in preeclampsia. Hypertension 2014; 64:165-71. [PMID: 24752434 DOI: 10.1161/hypertensionaha.113.03058] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Preeclampsia is a pregnancy-related disorder associated with increased cardiovascular risk for the offspring. Endothelial colony-forming cells (ECFCs) are a subset of circulating endothelial progenitor cells that participate in the formation of vasculature during development. However, the effect of preeclampsia on fetal levels of ECFCs is largely unknown. In this study, we sought to determine whether cord blood ECFC abundance and function are altered in preeclampsia. We conducted a prospective cohort study that included women with normal (n=35) and preeclamptic (n=15) pregnancies. We measured ECFC levels in the umbilical cord blood of neonates and characterized ECFC phenotype, cloning-forming ability, proliferation, and migration toward vascular endothelial growth factor-A and fibroblast growth factor-2, in vitro formation of capillary-like structures, and in vivo vasculogenic ability in immunodeficient mice. We found that the level of cord blood ECFCs was statistically lower in preeclampsia than in control pregnancies (P=0.04), a reduction that was independent of other obstetric factors. In addition, cord blood ECFCs from preeclamptic pregnancies required more time to emerge in culture than control ECFCs. However, once derived in culture, ECFC function was deemed normal and highly similar between preeclampsia and control, including the ability to form vascular networks in vivo. This study demonstrates that preeclampsia affects ECFC abundance in neonates. A reduced level of ECFCs during preeclamptic pregnancies may contribute to an increased risk of developing future cardiovascular events.
Collapse
Affiliation(s)
- Rocio Muñoz-Hernandez
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Maria L Miranda
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Pablo Stiefel
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Ruei-Zeng Lin
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Juan M Praena-Fernández
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Maria J Dominguez-Simeon
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Jose Villar
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Rafael Moreno-Luna
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.)
| | - Juan M Melero-Martin
- From the CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV) (R.M.-H., M.L.M., P.S., M.J.D.-S., J.V., R.M.-L.) and Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación, Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI) (J.M.P.-F.), Instituto de Biomedicina de Sevilla (IBiS) and Hospital Universitario Virgen del Rocío, Seville, Spain; Department of Cardiac Surgery, Boston Children's Hospital, MA (R.M.-H., R.-Z.L., R.M.-L., J.M.M.-M.); Department of Surgery, Harvard Medical School, Boston, MA (R.-Z.L., R.M.-L., J.M.M.-M.); and Harvard Stem Cell Institute, Cambridge, MA (J.M.M.-M.).
| |
Collapse
|
241
|
Attar A, Khosravi Maharlooi M, Khoshkhou S, Hosseini A, Jaberipour M, Dehghan A, Monabati A. Colony forming unit endothelial cells do not exhibit telomerase alternative splicing variants and activity. IRANIAN BIOMEDICAL JOURNAL 2014; 17:146-51. [PMID: 23748893 DOI: 10.6091/ibj.1100.2013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Endothelial progenitor colony forming unit-endothelial cells (CFU-EC) were first believed to be the progenitors of endothelial cells, named endothelial progenitor cells. Further studies revealed that they are monocytes regulating vasculogenesis. The main hindrance of these cells for therapeutic purposes is their low frequency and limited replicative potentials. This study was undertaken to determine telomerase activity and alternative splicing variants in CFU-EC as a potential cause of limited replicative capacity in these cells. METHODS CFU-EC were isolated from peripheral blood using a standard cell culture assay. Colonies were detached mechanically and alternative splicing variant mRNA were evaluated using real-time PCR. Telomerase enzyme activity was assessed using telomerase repeat amplification protocol. The same procedures were done on the cancer cell line Calu6 as the positive control. RESULTS The cultured peripheral blood mononuclear cells formed colonies with spindle-shaped monocytic cells sprouted from the clusters. These morphological characteristics fulfill the definition of CFU-EC. Telomere length amplification protocol assay revealed no telomerase activity and real-time PCR showed no expression of telomerase enzyme mRNA in CFU-EC. Both parameters were significantly higher in the cancer cell line Calu6 taken as the positive control. CONCLUSION The absence of telomerase activity in the CFU-EC is a result of pre-transcriptional regulation of gene expression rather than other mechanisms for controlling telomerase activity such as post-transcriptional modifications. This finding can explain the limited proliferative activity of CFU-EC cells. We propose that absence of telomerase activity in CFU-EC can be attributable to their more mature monocytic nature that needs further investigations.
Collapse
Affiliation(s)
- Armin Attar
- Student Research Committee, Shiraz University of Medical Sciences (SUMS), Shiraz, Iran.,Cellular and Molecular Research Club, Shiraz, Iran.,Dept. of Cardiovascular, Shiraz, Iran
| | - Mohsen Khosravi Maharlooi
- Student Research Committee, Shiraz University of Medical Sciences (SUMS), Shiraz, Iran.,Cellular and Molecular Research Club, Shiraz, Iran
| | - Sara Khoshkhou
- Student Research Committee, Shiraz University of Medical Sciences (SUMS), Shiraz, Iran.,Cellular and Molecular Research Club, Shiraz, Iran
| | | | | | - Arman Dehghan
- Student Research Committee, Shiraz University of Medical Sciences (SUMS), Shiraz, Iran.,Cellular and Molecular Research Club, Shiraz, Iran
| | - Ahmad Monabati
- Dept. of Pathology, Shiraz University of Medical Sciences (SUMS), Shiraz, Iran.,Hematology Research Center,
Shiraz University of Medical Sciences (SUMS), Shiraz, Iran
| |
Collapse
|
242
|
Chan KH, Simpson PJL, Yong AS, Dunn LL, Chawantanpipat C, Hsu C, Yu Y, Keech AC, Celermajer DS, Ng MKC. The relationship between endothelial progenitor cell populations and epicardial and microvascular coronary disease-a cellular, angiographic and physiologic study. PLoS One 2014; 9:e93980. [PMID: 24736282 PMCID: PMC3988011 DOI: 10.1371/journal.pone.0093980] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Accepted: 03/10/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Endothelial progenitor cells (EPCs) are implicated in protection against vascular disease. However, studies using angiography alone have reported conflicting results when relating EPCs to epicardial coronary artery disease (CAD) severity. Moreover, the relationship between different EPC types and the coronary microcirculation is unknown. We therefore investigated the relationship between EPC populations and coronary epicardial and microvascular disease. METHODS Thirty-three patients with a spectrum of isolated left anterior descending artery disease were studied. The coronary epicardial and microcirculation were physiologically interrogated by measurement of fractional flow reserve (FFR), index of microvascular resistance (IMR) and coronary flow reserve (CFR). Two distinct EPC populations (early EPC and late outgrowth endothelial cells [OECs]) were isolated from these patients and studied ex vivo. RESULTS There was a significant inverse relationship between circulating OEC levels and epicardial CAD severity, as assessed by FFR and angiography (r=0.371, p=0.04; r=-0.358, p=0.04; respectively). More severe epicardial CAD was associated with impaired OEC migration and tubulogenesis (r=0.59, p=0.005; r=0.589, p=0.004; respectively). Patients with significant epicardial CAD (FFR<0.75) had lower OEC levels and function compared to those without hemodynamically significant stenoses (p<0.05). In contrast, no such relationship was seen for early EPC number and function, nor was there a relationship between IMR and EPCs. There was a significant relationship between CFR and OEC function. CONCLUSIONS EPC populations differ in regards to their associations with CAD severity. The number and function of OECs, but not early EPCs, correlated significantly with epicardial CAD severity. There was no relationship between EPCs and severity of coronary microvascular disease.
Collapse
Affiliation(s)
- Kim H. Chan
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- The Heart Research Institute, Sydney, New South Wales, Australia
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | | | - Andy S. Yong
- Department of Cardiology, Concord Hospital, Sydney, New South Wales, Australia
| | - Louise L. Dunn
- The Heart Research Institute, Sydney, New South Wales, Australia
| | | | - Chijen Hsu
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- The Heart Research Institute, Sydney, New South Wales, Australia
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Young Yu
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- The Heart Research Institute, Sydney, New South Wales, Australia
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Anthony C. Keech
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
- National Health and Medical Research Council Clinical Trials Centre, Sydney, New South Wales, Australia
| | - David S. Celermajer
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- The Heart Research Institute, Sydney, New South Wales, Australia
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Martin K. C. Ng
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
- The Heart Research Institute, Sydney, New South Wales, Australia
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
- * E-mail:
| |
Collapse
|
243
|
Nakayoshi T, Sasaki KI, Kajimoto H, Koiwaya H, Ohtsuka M, Ueno T, Chibana H, Itaya N, Sasaki M, Yokoyama S, Fukumoto Y, Imaizumi T. FOXO4-knockdown suppresses oxidative stress-induced apoptosis of early pro-angiogenic cells and augments their neovascularization capacities in ischemic limbs. PLoS One 2014; 9:e92626. [PMID: 24663349 PMCID: PMC3963928 DOI: 10.1371/journal.pone.0092626] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 02/24/2014] [Indexed: 01/13/2023] Open
Abstract
The effects of therapeutic angiogenesis by intramuscular injection of early pro-angiogenic cells (EPCs) to ischemic limbs are unsatisfactory. Oxidative stress in the ischemic limbs may accelerate apoptosis of injected EPCs, leading to less neovascularization. Forkhead transcription factor 4 (FOXO4) was reported to play a pivotal role in apoptosis signaling of EPCs in response to oxidative stress. Accordingly, we assessed whether FOXO4-knockdown EPCs (FOXO4KD-EPCs) could suppress the oxidative stress-induced apoptosis and augment the neovascularization capacity in ischemic limbs. We transfected small interfering RNA targeted against FOXO4 of human EPCs to generate FOXO4KD-EPCs and confirmed a successful knockdown. FOXO4KD-EPCs gained resistance to apoptosis in response to hydrogen peroxide in vitro. Oxidative stress stained by dihydroethidium was stronger for the immunodeficient rat ischemic limb tissue than for the rat non-ischemic one. Although the number of apoptotic EPCs injected into the rat ischemic limb was greater than that of apoptotic EPCs injected into the rat non-ischemic limb, FOXO4KD-EPCs injected into the rat ischemic limb brought less apoptosis and more neovascularization than EPCs. Taken together, the use of FOXO4KD-EPCs with resistance to oxidative stress-induced apoptosis may be a new strategy to augment the effects of therapeutic angiogenesis by intramuscular injection of EPCs.
Collapse
Affiliation(s)
- Takaharu Nakayoshi
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Ken-ichiro Sasaki
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
- The Cardiovascular Research Institute, Kurume University, Fukuoka, Japan
- * E-mail:
| | - Hidemi Kajimoto
- The Cardiovascular Research Institute, Kurume University, Fukuoka, Japan
| | - Hiroshi Koiwaya
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Masanori Ohtsuka
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Takafumi Ueno
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Hidetoshi Chibana
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Naoki Itaya
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Masahiro Sasaki
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Shinji Yokoyama
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | - Yoshihiro Fukumoto
- Division of Cardio-Vascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Fukuoka, Japan
| | | |
Collapse
|
244
|
Krüger K, Klocke R, Kloster J, Nikol S, Waltenberger J, Mooren FC. Activity of daily living is associated with circulating CD34+/KDR+ cells and granulocyte colony-stimulating factor levels in patients after myocardial infarction. J Appl Physiol (1985) 2014; 116:532-7. [DOI: 10.1152/japplphysiol.01254.2013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The study aimed to investigate whether the extent of activities of daily living (ADL) of patients after myocardial infarction affect numbers of circulating CD34+/KDR+ and CD45+/CD34+ cells, which are supposed to protect structural and functional endothelial integrity. In a cross-sectional study, 34 male coronary artery disease patients with a history of myocardial infarction were assessed for times spent per week for specific physical ADL, including basic activities (instrumental ADL), leisure time activities, and sport activities, using a validated questionnaire. Individual specific activity times were multiplied with respective specific metabolic equivalent scores to obtain levels of specific activities. Numbers of circulating CD34+/KDR+ and CD45+/CD34+ cells were analyzed by flow cytometry. Furthermore, the colony-forming capacity of CD34+ cells and the level of granulocyte colony-stimulating factor (G-CSF) in serum were measured. Analysis revealed that the extent of total activities and basic activities, as well as total activity time, were positively correlated with numbers of circulating CD34+/KDR+ cells ( r = 0.60, 0.56, and 0.55, P < 0.05). Higher levels of total activity were also associated with increased colony-forming capacity of CD34+ cells ( r = 0.54, P < 0.05) and with higher systemic levels of G-CSF ( r = 0.44, P < 0.05). These findings indicate that even ADL-related activities of coronary artery disease patients after myocardial infarction exert stimulating effects on CD34+/KDR+ cell mobilization, potentially mediated by increased G-CSF levels. This, in turn, potentially contributes to the beneficial effects of exercise on the diseased cardiovascular system.
Collapse
Affiliation(s)
- Karsten Krüger
- Department of Sports Medicine, Institute of Sports Sciences, Justus-Liebig-University, Giessen, Germany; and
| | - Rainer Klocke
- Department of Cardiovascular Medicine, University of Münster, Münster, Germany
| | - Julia Kloster
- Department of Sports Medicine, Institute of Sports Sciences, Justus-Liebig-University, Giessen, Germany; and
| | - Sigrid Nikol
- Department of Cardiovascular Medicine, University of Münster, Münster, Germany
| | | | - Frank C. Mooren
- Department of Sports Medicine, Institute of Sports Sciences, Justus-Liebig-University, Giessen, Germany; and
| |
Collapse
|
245
|
Moreno-Luna R, Muñoz-Hernandez R, Lin RZ, Miranda ML, Vallejo-Vaz AJ, Stiefel P, Praena-Fernández JM, Bernal-Bermejo J, Jimenez-Jimenez LM, Villar J, Melero-Martin JM. Maternal body-mass index and cord blood circulating endothelial colony-forming cells. J Pediatr 2014; 164:566-571. [PMID: 24315508 PMCID: PMC3943964 DOI: 10.1016/j.jpeds.2013.10.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/09/2013] [Accepted: 10/10/2013] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Endothelial colony-forming cells (ECFCs) are a subset of circulating endothelial progenitor cells that are particularly abundant in umbilical cord blood. We sought to determine whether ECFC abundance in cord blood is associated with maternal body-mass index (BMI) in nonpathologic pregnancies. STUDY DESIGN We measured the level of ECFCs in the cord blood of neonates (n = 27) born from non-obese healthy mothers with nonpathologic pregnancies and examined whether ECFC abundance correlated with maternal BMI. We also examined the effect of maternal BMI on ECFC phenotype and function using angiogenic and vasculogenic assays. RESULTS We observed variation in ECFC abundance among subjects and found a positive correlation between prepregnancy maternal BMI and ECFC content (r = 0.51, P = .007), which was independent of other obstetric factors. Despite this variation, ECFC phenotype and functionality were deemed normal and highly similar between subjects with maternal BMI <25 kg/m(2) and BMI between 25-30 kg/m(2), including the ability to form vascular networks in vivo. CONCLUSIONS This study underlines the need to consider maternal BMI as a potential confounding factor for cord blood levels of ECFCs in future comparative studies between healthy and pathologic pregnancies.
Collapse
Affiliation(s)
- Rafael Moreno-Luna
- Department of Cardiac Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA,Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV), Seville, Spain
| | - Rocio Muñoz-Hernandez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV), Seville, Spain
| | - Ruei-Zeng Lin
- Department of Cardiac Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Maria L. Miranda
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV), Seville, Spain
| | - Antonio J. Vallejo-Vaz
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV), Seville, Spain
| | - Pablo Stiefel
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV), Seville, Spain
| | - Juan M. Praena-Fernández
- Unidad de Asesoría Estadística, Metodología y Evaluación de Investigación. Fundación Pública Andaluza para la Gestión de la Investigación en Salud de Sevilla (FISEVI). Hospital Universitario Virgen del Rocío, Instituto de Biomedicina de Sevilla (IBiS), Seville, Spain
| | - Jose Bernal-Bermejo
- Unidad de Gestión Clínica de Ginecología Obstetricia y Patologías Mamarias del Hospital de la Mujer, Hospital Universitario Virgen del Rocío, Seville, Spain
| | | | - Jose Villar
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Unidad Clínico-Experimental de Riesgo Vascular (UCAMI-UCERV), Seville, Spain
| | - Juan M. Melero-Martin
- Department of Cardiac Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA
| |
Collapse
|
246
|
Becher UM, Möller L, Tiyerili V, Vasa Nicotera M, Hauptmann F, Zimmermann K, Pfeifer A, Nickenig G, Wassmann S, Werner N. Distinct CD11b+-monocyte subsets accelerate endothelial cell recovery after acute and chronic endothelial cell damage. Int J Cardiol 2014; 173:80-91. [PMID: 24602320 DOI: 10.1016/j.ijcard.2014.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Revised: 01/12/2014] [Accepted: 02/08/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Endothelial cell recovery requires replenishment of primary cells from the endothelial lineage. However, recent evidence suggests that cells of the innate immune system enhance endothelial regeneration. METHODS AND RESULTS Focusing on mature CD11b+-monocytes, we analyzed the fate and the effect of transfused CD11b+-monocytes after endothelial injury in vivo. CD11b-diphtheria-toxin-receptor-mice--a mouse model in which administration of diphtheria toxin selectively eliminates endogenous monocytes and macrophages--were treated with WT-derived CD11b+-monocytes from age-matched mice. CD11b+-monocytes improved endothelium-dependent vasoreactivity after 7 days while transfusion of WT-derived CD11b--cells had no beneficial effect on endothelial function. In ApoE-/--CD11b-DTR-mice with a hypercholesterolemia-induced chronic endothelial injury transfusion of WT-derived CD11b+-monocytes stimulated by interferon-γ (IFNγ) decreased endothelial function, whereas interleukin-4-stimulated (IL4) monocytes had no detectable effect on vascular function. Bioluminescent imaging revealed restriction of transfused CD11b+-monocytes to the endothelial injury site in CD11b-DTR-mice depleted of endogenous monocytes. In vitro co-culture experiments revealed significantly enhanced regeneration properties of human endothelial outgrowth cells (EOCs) when cultured with preconditioned-media (PCM) or monocytes of IL4-stimulated-subsets compared to the effects of IFNγ-stimulated monocytes. CONCLUSION CD11b+-monocytes play an important role in endothelial cell recovery after endothelial injury by homing to the site of vascular injury, enhancing reendothelialization and improving endothelial function. In vitro experiments suggest that IL4-stimulated monocytes enhance EOC regeneration properties most likely by paracrine induction of proliferation and cellular promotion of differentiation. These results underline novel insights in the biology of endothelial regeneration and provide additional information for the treatment of vascular dysfunction.
Collapse
Affiliation(s)
- Ulrich M Becher
- Medizinische Klinik und Poliklinik II, Innere Medizin, Universitätsklinikum Bonn, Germany
| | - Lisa Möller
- Medizinische Klinik und Poliklinik II, Innere Medizin, Universitätsklinikum Bonn, Germany
| | - Vedat Tiyerili
- Medizinische Klinik und Poliklinik II, Innere Medizin, Universitätsklinikum Bonn, Germany
| | - Mariuca Vasa Nicotera
- Medizinische Klinik und Poliklinik II, Innere Medizin, Universitätsklinikum Bonn, Germany
| | - Felix Hauptmann
- Medizinische Klinik und Poliklinik II, Innere Medizin, Universitätsklinikum Bonn, Germany
| | - Katrin Zimmermann
- Institut für Pharmakologie und Toxikologie, Universitätsklinikum Bonn, Germany
| | - Alexander Pfeifer
- Institut für Pharmakologie und Toxikologie, Universitätsklinikum Bonn, Germany
| | - Georg Nickenig
- Medizinische Klinik und Poliklinik II, Innere Medizin, Universitätsklinikum Bonn, Germany
| | - Sven Wassmann
- Kardiologische Abteilung, Innere Medizin, Isarklinik München, Germany
| | - Nikos Werner
- Medizinische Klinik und Poliklinik II, Innere Medizin, Universitätsklinikum Bonn, Germany.
| |
Collapse
|
247
|
Circulating progenitor cells in hypertensive patients with different degrees of cardiovascular involvement. J Hum Hypertens 2014; 28:543-50. [PMID: 24553637 DOI: 10.1038/jhh.2014.7] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/13/2013] [Accepted: 12/26/2013] [Indexed: 01/05/2023]
Abstract
We investigated whether different degrees of hypertension-related cardiovascular involvement are associated with changes in circulating proangiogenic hematopoietic cell (PHC) numbers and/or phenotypes and/or in the PHC redox system in hypertensive individuals with isolated arterial stiffening (AS) hypertensives or with both carotid intima-media thickening and left ventricular hypertrophy (LVH) hypertensives. We also evaluated microRNA (miRs) 221 and 222 (miRs221/222) expression in CD34+ cells, the relationship between these miRs and cell number and reactive oxygen species (ROS) levels, and the expression of manganese superoxide dismutase (MnSOD), catalase (CAT) glutathione peroxidase type-1 (GPx-1) and gp91phox-containing nicotinamide-adenine-dinucleotide-phosphate-oxidase (NOX2). Proangiogenic hematopoietic cells (PHCs) from hypertensive patients and controls were isolated by flow cytometry. PHCs were higher in hypertensives than in controls but were lower in LVH than in AS hypertensives. In CD34+ cells from AS hypertensives, NOX2, MnSOD, CAT and GPx-1 were overexpressed; ROS, miRs and NOX2 were also increased and were associated with cell number. In LVH, we found an imbalance in the cell redox system; MnSOD showed the highest values, whereas CAT and GPx-1 were lower than in AS hypertensives. Intracellular ROS, miRs and NOX2 were higher and inversely associated with cell number. In AS hypertensives, the redox balance may sustain the increase in PHCs; by contrast, in hypertensives with more advanced lesions, redox imbalance may result in increased oxidative stress and cell reduction.
Collapse
|
248
|
Melchiorri AJ, Nguyen BNB, Fisher JP. Mesenchymal stem cells: roles and relationships in vascularization. TISSUE ENGINEERING PART B-REVIEWS 2014; 20:218-28. [PMID: 24410463 DOI: 10.1089/ten.teb.2013.0541] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
One of the primary challenges in translating tissue engineering to clinical applicability is adequate, functional vascularization of tissue constructs. Vascularization is necessary for the long-term viability of implanted tissue expanded and differentiated in vitro. Such tissues may be derived from various cell sources, including mesenchymal stem cells (MSCs). MSCs, able to differentiate down several lineages, have been extensively researched for their therapeutic capabilities. In addition, MSCs have a variety of roles in the vascularization of tissue, both through direct contact and indirect signaling. The studied relationships between MSCs and vascularization have been utilized to further the necessary advancement of vascularization in tissue engineering concepts. This review aims to provide a summary of relevant relationships between MSCs, vascularization, and other relevant cell types, along with an overview discussing applications and challenges related to the roles and relationships of MSCs and vascular tissues.
Collapse
Affiliation(s)
- Anthony J Melchiorri
- Fischell Department of Bioengineering, University of Maryland , College Park, Maryland
| | | | | |
Collapse
|
249
|
Dual effects of cigarette smoke extract on proliferation of endothelial progenitor cells and the protective effect of 5-aza-2'-deoxycytidine on EPCs against the damage caused by CSE. BIOMED RESEARCH INTERNATIONAL 2014; 2014:640752. [PMID: 24696861 PMCID: PMC3947928 DOI: 10.1155/2014/640752] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/07/2014] [Accepted: 01/07/2014] [Indexed: 01/08/2023]
Abstract
Cigarette smoke is a major public health problem associated with multitude of diseases, including pulmonary and vascular diseases. Endothelial progenitor cells (EPCs) contribute to neovascularization and play an important role in the development of these diseases. The effect of CSE on EPCs is seldom studied. The aim of the current study is to observe the effect of CSE on biological behavior of EPCs and, further, to search for potential candidate agent in protection of proliferation of EPCs against the damage caused by CSE exposure in vitro. Methods. The proliferations of EPCs isolated from bone marrow of C57BL/6J mice were assessed by MTT after incubating the EPCs with a series of concentrations of CSE (1.0%, 2.5%, 5.0%, and 10.0%) for different times (3, 6, and 24 hours) as well as with 1.0% CSE in presence of 5-AZA-CdR for 24 hours. Results. The proliferations of EPCs were significantly enhanced after 3 hours of exposure to concentrations of 1.0% and 2.5% CSE but depressed when exposed to concentrations of 5.0% and 10.0% CSE. Furthermore, the 5-AZA-CdR in concentrations of 2.0 μmol/L and 5.0 μmol/L partly protected against the depression of proliferation of EPCs caused by CSE exposure. Conclusions. The CSE showed dual effects on proliferation of EPCs isolated from mice. The 5-AZA-CdR partly protected the proliferation of EPCs against the damage caused by CSE exposure in vitro, suggesting that DNA methylation may be involved in the dysfunction of EPCs induced by CSE.
Collapse
|
250
|
Barthelmes D, Zhu L, Shen W, Gillies MC, Irhimeh MR. Differential gene expression in Lin-/VEGF-R2+ bone marrow-derived endothelial progenitor cells isolated from diabetic mice. Cardiovasc Diabetol 2014; 13:42. [PMID: 24521356 PMCID: PMC3926942 DOI: 10.1186/1475-2840-13-42] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 02/03/2014] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Diabetes is known to impair the number and function of endothelial progenitor cells in the circulation, causing structural and functional alterations in the micro- and macro-vasculature. The aim of this study was to identify early diabetes-related changes in the expression of genes that have been reported to be closely involved in endothelial progenitor cell migration and function. METHODS Based on review of current literature, this study examined the expression level of 35 genes that are known to be involved in endothelial progenitor cell migration and function in magnetically sorted Lin-/VEGF-R2+ endothelial progenitor cells obtained from the bone marrow of Akita mice in the early stages of diabetes (18 weeks) using RT-PCR and Western blotting. We used the Shapiro-Wilk and D'Agostino & Pearson Omnibus tests to assess normality. Differences between groups were evaluated by Student's t-test for normally distributed data (including Welch correction in cases of unequal variances) or Mann-Whitney test for not normally distributed data. RESULTS We observed a significant increase in the number of Lin-/VEGF-R2+ endothelial progenitor cells within the bone marrow in diabetic mice compared with non-diabetic mice. Two genes, SDF-1 and SELE, were significantly differentially expressed in diabetic Lin-/VEGF-R2+ endothelial progenitor cells and six other genes, CAV1, eNOS, CLDN5, NANOG, OCLN and BDNF, showed very low levels of expression in diabetic Lin-/VEGF-R2+ progenitor cells. CONCLUSION Low SDF-1 expression may contribute to the dysfunctional mobilization of bone marrow Lin-/VEGF-R2+ endothelial progenitor cells, which may contribute to microvascular injury in early diabetes.
Collapse
Affiliation(s)
| | | | | | | | - Mohammad R Irhimeh
- Save Sight Institute, Level 1, South Block Sydney Hospital and Sydney Eye Hospital, Central Clinical School, The University of Sydney, 8 Macquarie Street, Sydney, NSW 2000, Australia.
| |
Collapse
|