1
|
Ishida Y, Nosaka M, Kondo T. Bone Marrow-Derived Cells and Wound Age Estimation. Front Med (Lausanne) 2022; 9:822572. [PMID: 35155503 PMCID: PMC8828650 DOI: 10.3389/fmed.2022.822572] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/03/2022] [Indexed: 12/20/2022] Open
Abstract
Appropriate technology as well as specific target cells and molecules are key factors for determination of wound vitality or wound age in forensic practice. Wound examination is one of the most important tasks for forensic pathologists and is indispensable to distinguish antemortem wounds from postmortem damage. For vital wounds, estimating the age of the wound is also essential in determining how the wound is associated with the cause of death. We investigated bone marrow-derived cells as promising markers and their potential usefulness in forensic applications. Although examination of a single marker cannot provide high reliability and objectivity in estimating wound age, evaluating the appearance combination of bone marrow-derived cells and the other markers may allow for a more objective and accurate estimation of wound age.
Collapse
Affiliation(s)
- Yuko Ishida
- *Correspondence: Yuko Ishida ; orcid.org/0000-0001-6104-7599
| | | | | |
Collapse
|
2
|
Vessel Wall-Derived Mesenchymal Stromal Cells Share Similar Differentiation Potential and Immunomodulatory Properties with Bone Marrow-Derived Stromal Cells. Stem Cells Int 2020; 2020:8847038. [PMID: 33144864 PMCID: PMC7596426 DOI: 10.1155/2020/8847038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/04/2020] [Accepted: 10/09/2020] [Indexed: 01/07/2023] Open
Abstract
Purpose This study is aimed at investigating the phenotype, differentiation potential, immunomodulatory properties, and responsiveness of saphenous vein vessel wall-derived mesenchymal stromal cells (SV-MSCs) to various TLR ligands and proinflammatory cytokines, as well as comparing their features to those of their bone marrow-derived counterparts (BM-MSCs). Methods SV-MSCs were isolated by enzymatic digestion of the saphenous vein vessel wall. Phenotype analysis was carried out by flow cytometry and microscopy, whereas adipogenic, chondrogenic, and osteogenic differentiation potentials were tested in in vitro assays. For comparative analysis, the expression of different stemness, proliferation, and differentiation-related genes was determined by Affymetrix gene array. To compare the immunomodulatory properties of SV-MSCs and BM-MSCs, mixed lymphocyte reaction was applied. To investigate their responses to various activating stimuli, MSCs were treated with TLR ligands (LPS, PolyI:C) or proinflammatory cytokines (TNFα, IL-1β, IFNγ), and the expression of various early innate immune response-related genes was assessed by qPCR, while secretion of selected cytokines and chemokines was measured by ELISA. Results The isolated SV-MSCs were able to differentiate into bone, fat, and cartilage cells/direction in vitro. SV-MSCs expressed the most important MSC markers (CD29, CD44, CD73, CD90, and CD105) and shared almost identical phenotypic characteristics with BM-MSCs. Their gene expression pattern and activation pathways were close to those of BM-MSCs. SV-MSCs showed better immunosuppressive activity inhibiting phytohemagglutinin-induced T lymphocyte proliferation in vitro than BM-MSCs. Cellular responses to treatments mimicking inflammatory conditions were comparable in the bone marrow- and saphenous vein-derived MSCs. Namely, similar to BM-MSCs, SV-MSCs secreted increased amount of IL-6 and IL-8 after 12- or 24-hour treatment with LPS, PolyI:C, TNFα, or IL-1β, compared to untreated controls. Interestingly, a different CXCL-10/IP-10 secretion pattern could be observed under inflammatory conditions in the two types of MSCs. Conclusion Based on our results, cells isolated from saphenous vein vessel wall fulfilled the ISCT's (International Society for Cellular Therapy) criteria for multipotent mesenchymal stromal cells, and no significant differences in the phenotype, gene expression pattern, and responsiveness to inflammatory stimuli could be observed between BM-MSCs and SV-MSCs, while the latter cells have more potent immunosuppressive activity in vitro. Further functional assays have to be performed to reveal whether SV-MSCs could be useful for certain regenerative therapeutic applications or tissue engineering purposes.
Collapse
|
3
|
Takahara S, Lee SY, Iwakura T, Oe K, Fukui T, Okumachi E, Arakura M, Sakai Y, Matsumoto T, Matsushita T, Kuroda R, Niikura T. Altered microRNA profile during fracture healing in rats with diabetes. J Orthop Surg Res 2020; 15:135. [PMID: 32264968 PMCID: PMC7140490 DOI: 10.1186/s13018-020-01658-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/27/2020] [Indexed: 12/14/2022] Open
Abstract
Background MicroRNAs (miRNAs) are a class of small non-coding RNA molecules that regulate gene expression. There is increasing evidence that some miRNAs are involved in the pathology of diabetes mellitus (DM) and its complications. We hypothesized that the functions of certain miRNAs and the changes in their patterns of expression may contribute to the pathogenesis of impaired fractures due to DM. Methods In this study, 108 male Sprague–Dawley rats were divided into DM and control groups. DM rats were created by a single intravenous injection of streptozotocin. Closed transverse femoral shaft fractures were created in both groups. On post-fracture days 5, 7, 11, 14, 21, and 28, miRNA was extracted from the newly generated tissue at the fracture site. Microarray analysis was conducted with miRNA samples from each group on post-fracture days 5 and 11. The microarray findings were validated by real-time polymerase chain reaction (PCR) analysis at each time point. Results Microarray analysis revealed that, on days 5 and 11, 368 and 207 miRNAs, respectively, were upregulated in the DM group, compared with the control group. The top four miRNAs on day 5 were miR-339-3p, miR451-5p, miR-532-5p, and miR-551b-3p. The top four miRNAs on day 11 were miR-221-3p, miR376a-3p, miR-379-3p, and miR-379-5p. Among these miRNAs, miR-221-3p, miR-339-3p, miR-376a-3p, miR-379-5p, and miR-451-5p were validated by real-time PCR analysis. Furthermore, PCR analysis revealed that these five miRNAs were differentially expressed with dynamic expression patterns during fracture healing in the DM group, compared with the control group. Conclusions Our findings will aid in understanding the pathology of impaired fracture healing in DM and may support the development of molecular therapies using miRNAs for the treatment of impaired fracture healing in patients with DM.
Collapse
Affiliation(s)
- Shunsuke Takahara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.,Department of Orthopaedic Surgery, Hyogo Prefectural Kakogawa Medical Center, Kakogawa, 675-8555, Japan
| | - Sang Yang Lee
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.,Department of Orthopaedic Surgery, Showa University School of Medicine, Tokyo, 142-8666, Japan
| | - Takashi Iwakura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Keisuke Oe
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Tomoaki Fukui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Etsuko Okumachi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Michio Arakura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yoshitada Sakai
- Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Tomoyuki Matsumoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takehiko Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takahiro Niikura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| |
Collapse
|
4
|
Ota Y, Kuwana M. Endothelial cells and endothelial progenitor cells in the pathogenesis of systemic sclerosis. Eur J Rheumatol 2019; 7:S139-S146. [PMID: 31922471 DOI: 10.5152/eurjrheum.2019.19158] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/25/2019] [Indexed: 12/27/2022] Open
Abstract
Systemic sclerosis (SSc) is a connective tissue disease characterized by excessive fibrosis, microvasculopathy, and autoimmunity. Endothelial cell (EC) injury and subsequent endothelial cell dysfunction is believed to be an initial event that eventually leads to a vicious pathogenic cycle. This process is further enhanced by defective angiogenesis and vasculogenesis, as the vascular repair machinery does not work properly. Endothelial progenitor cells (EPCs) are functionally and quantitatively insufficient to recover the endothelium in SSc patients. The dysfunctional ECs and EPCs not only trigger the formation of typical vascular lesions, such as progressive intimal fibrosis in small arteries and the loss of capillaries, but also promote a series of inflammatory and profibrotic processes, such as endothelial-mesenchymal transition and recruitment and accumulation of monocytic EPCs with profibrotic properties. These processes together contribute to the accumulation of extracellular matrix in the affected tissue. This review features current insights into the roles of ECs and EPCs in the pathogenesis of SSc.
Collapse
Affiliation(s)
- Yuko Ota
- Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, Tokyo, Japan
| | - Masataka Kuwana
- Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, Tokyo, Japan
| |
Collapse
|
5
|
Sabbah N, Tamari T, Elimelech R, Doppelt O, Rudich U, Zigdon-Giladi H. Predicting Angiogenesis by Endothelial Progenitor Cells Relying on In-Vitro Function Assays and VEGFR-2 Expression Levels. Biomolecules 2019; 9:biom9110717. [PMID: 31717420 PMCID: PMC6921061 DOI: 10.3390/biom9110717] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/04/2019] [Accepted: 11/06/2019] [Indexed: 12/12/2022] Open
Abstract
Clinical trials have demonstrated the safety and efficacy of autologous endothelial progenitor cell (EPC) therapy in various diseases. Since EPCs' functions are influenced by genetic, systemic and environmental factors, the therapeutic potential of each individual EPCs is unknown and may affect treatment outcome. Therefore, our aim was to compare EPCs function among healthy donors in order to predict blood vessel formation (angiogenesis) before autologous EPC transplantation. Human EPCs were isolated from the blood of ten volunteers. EPCs proliferation rate, chemoattractant ability, and CXCR4 mRNA levels were different among donors (p < 0.0001, p < 0.01, p < 0.001, respectively). A positive correlation was found between SDF-1, CXCR4, and EPCs proliferation (R = 0.736, p < 0.05 and R = 0.8, p < 0.01, respectively). In-vivo, blood vessels were counted ten days after EPCs transplantation in a subcutaneous mouse model. Mean vessel density was different among donors (p = 0.0001); nevertheless, donors with the lowest vessel densities were higher compared to control (p < 0.05). Finally, using a linear regression model, a mathematical equation was generated to predict blood vessel density relying on: (i) EPCs chemoattractivity, and (ii) VEGFR-2 mRNA levels. Results reveal differences in EPCs functions among healthy individuals, emphasizing the need for a potency assay to pave the way for standardized research and clinical use of human EPCs.
Collapse
Affiliation(s)
- Nadin Sabbah
- Laboratory for Bone Repair, Rambam Health Care Campus, Haifa 3109600, Israel; (N.S.); (T.T.); (R.E.); (O.D.)
- The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel;
| | - Tal Tamari
- Laboratory for Bone Repair, Rambam Health Care Campus, Haifa 3109600, Israel; (N.S.); (T.T.); (R.E.); (O.D.)
| | - Rina Elimelech
- Laboratory for Bone Repair, Rambam Health Care Campus, Haifa 3109600, Israel; (N.S.); (T.T.); (R.E.); (O.D.)
- Department of Periodontology, Rambam Health Care Campus, Haifa 3109601, Israel
| | - Ofri Doppelt
- Laboratory for Bone Repair, Rambam Health Care Campus, Haifa 3109600, Israel; (N.S.); (T.T.); (R.E.); (O.D.)
- The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel;
| | - Utai Rudich
- The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel;
| | - Hadar Zigdon-Giladi
- Laboratory for Bone Repair, Rambam Health Care Campus, Haifa 3109600, Israel; (N.S.); (T.T.); (R.E.); (O.D.)
- The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel;
- Department of Periodontology, Rambam Health Care Campus, Haifa 3109601, Israel
- Correspondence: ; Tel.: +972-4-854-3606
| |
Collapse
|
6
|
Aboulhoda BE, Abd el Fattah S. Bone marrow-derived versus adipose-derived stem cells in wound healing: value and route of administration. Cell Tissue Res 2018; 374:285-302. [DOI: 10.1007/s00441-018-2879-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 06/22/2018] [Indexed: 02/06/2023]
|
7
|
Zuccolo E, Di Buduo C, Lodola F, Orecchioni S, Scarpellino G, Kheder DA, Poletto V, Guerra G, Bertolini F, Balduini A, Rosti V, Moccia F. Stromal Cell-Derived Factor-1α Promotes Endothelial Colony-Forming Cell Migration Through the Ca2+-Dependent Activation of the Extracellular Signal-Regulated Kinase 1/2 and Phosphoinositide 3-Kinase/AKT Pathways. Stem Cells Dev 2018; 27:23-34. [DOI: 10.1089/scd.2017.0114] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Estella Zuccolo
- Laboratory of General Physiology, Department of Biology and Biotechnology “Lazzaro Spallanzani,” University of Pavia, Pavia, Italy
| | - Christian Di Buduo
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Laboratory of Biochemistry, Biotechnology, and Advanced Diagnosis, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Matteo Foundation, Pavia, Italy
| | - Francesco Lodola
- Laboratory of General Physiology, Department of Biology and Biotechnology “Lazzaro Spallanzani,” University of Pavia, Pavia, Italy
| | - Stefania Orecchioni
- Laboratory of Hematology–Oncology, European Institute of Oncology, Milan, Italy
| | - Giorgia Scarpellino
- Laboratory of General Physiology, Department of Biology and Biotechnology “Lazzaro Spallanzani,” University of Pavia, Pavia, Italy
| | - Dlzar Ali Kheder
- Laboratory of General Physiology, Department of Biology and Biotechnology “Lazzaro Spallanzani,” University of Pavia, Pavia, Italy
- Department of Biology, Faculty of Science, University of Zakho, Zakho, Kurdistan-Region of Iraq
| | - Valentina Poletto
- Laboratory of Biochemistry, Biotechnology, and Advanced Diagnosis, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Matteo Foundation, Pavia, Italy
| | - Germano Guerra
- Department of Medicine and Health Sciences “Vincenzo Tiberio,” University of Molise, Campobasso, Italy
| | - Francesco Bertolini
- Laboratory of Hematology–Oncology, European Institute of Oncology, Milan, Italy
| | - Alessandra Balduini
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Laboratory of Biochemistry, Biotechnology, and Advanced Diagnosis, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Matteo Foundation, Pavia, Italy
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts
| | - Vittorio Rosti
- Laboratory of Biochemistry, Biotechnology, and Advanced Diagnosis, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Matteo Foundation, Pavia, Italy
| | - Francesco Moccia
- Laboratory of General Physiology, Department of Biology and Biotechnology “Lazzaro Spallanzani,” University of Pavia, Pavia, Italy
| |
Collapse
|
8
|
Moccia F, Lucariello A, Guerra G. TRPC3-mediated Ca 2+ signals as a promising strategy to boost therapeutic angiogenesis in failing hearts: The role of autologous endothelial colony forming cells. J Cell Physiol 2017; 233:3901-3917. [PMID: 28816358 DOI: 10.1002/jcp.26152] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 08/15/2017] [Indexed: 12/20/2022]
Abstract
Endothelial progenitor cells (EPCs) are a sub-population of bone marrow-derived mononuclear cells that are released in circulation to restore damaged endothelium during its physiological turnover or rescue blood perfusion after an ischemic insult. Additionally, they may be mobilized from perivascular niches located within larger arteries' wall in response to hypoxic conditions. For this reason, EPCs have been regarded as an effective tool to promote revascularization and functional recovery of ischemic hearts, but clinical application failed to exploit the full potential of patients-derived cells. Indeed, the frequency and biological activity of EPCs are compromised in aging individuals or in subjects suffering from severe cardiovascular risk factors. Rejuvenating the reparative phenotype of autologous EPCs through a gene transfer approach has, therefore, been put forward as an alternative approach to enhance their therapeutic potential in cardiovascular patients. An increase in intracellular Ca2+ concentration constitutes a pivotal signal for the activation of the so-called endothelial colony forming cells (ECFCs), the only known truly endothelial EPC subset. Studies from our group showed that the Ca2+ toolkit differs between peripheral blood- and umbilical cord blood (UCB)-derived ECFCs. In the present article, we first discuss how VEGF uses repetitive Ca2+ spikes to regulate angiogenesis in ECFCs and outline how VEGF-induced intracellular Ca2+ oscillations differ between the two ECFC subtypes. We then hypothesize about the possibility to rejuvenate the biological activity of autologous ECFCs by transfecting the cell with the Ca2+ -permeable channel Transient Receptor Potential Canonical 3, which selectively drives the Ca2+ response to VEGF in UCB-derived ECFCs.
Collapse
Affiliation(s)
- Francesco Moccia
- Laboratory of General Physiology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Angela Lucariello
- Department of Mental and Physical Health and Preventive Medicine, Section of Human Anatomy, Universy of Campania "L. Vanvitelli", Naples, Italy
| | - Germano Guerra
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy
| |
Collapse
|
9
|
Varberg KM, Winfree S, Chu C, Tu W, Blue EK, Gohn CR, Dunn KW, Haneline LS. Kinetic analyses of vasculogenesis inform mechanistic studies. Am J Physiol Cell Physiol 2017; 312:C446-C458. [PMID: 28100488 PMCID: PMC5407022 DOI: 10.1152/ajpcell.00367.2016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 01/12/2017] [Accepted: 01/13/2017] [Indexed: 12/21/2022]
Abstract
Vasculogenesis is a complex process by which endothelial stem and progenitor cells undergo de novo vessel formation. Quantitative assessment of vasculogenesis is a central readout of endothelial progenitor cell functionality. However, current assays lack kinetic measurements. To address this issue, new approaches were developed to quantitatively assess in vitro endothelial colony-forming cell (ECFC) network formation in real time. Eight parameters of network structure were quantified using novel Kinetic Analysis of Vasculogenesis (KAV) software. KAV assessment of structure complexity identified two phases of network formation. This observation guided the development of additional vasculogenic readouts. A tissue cytometry approach was established to quantify the frequency and localization of dividing ECFCs. Additionally, Fiji TrackMate was used to quantify ECFC displacement and speed at the single-cell level during network formation. These novel approaches were then implemented to identify how intrauterine exposure to maternal diabetes mellitus (DM) impairs fetal ECFC vasculogenesis. Fetal ECFCs exposed to maternal DM form fewer initial network structures, which are not stable over time. Correlation analyses demonstrated that ECFC samples with greater division in branches form fewer closed network structures. Additionally, reductions in average ECFC movement over time decrease structural connectivity. Identification of these novel phenotypes utilizing the newly established methodologies provides evidence for the cellular mechanisms contributing to aberrant ECFC vasculogenesis.
Collapse
Affiliation(s)
- Kaela M Varberg
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
- Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana
| | - Seth Winfree
- Indiana Center for Biological Microscopy, Indianapolis, Indiana
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Chenghao Chu
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Wanzhu Tu
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Emily K Blue
- Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Cassandra R Gohn
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
- Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana
| | - Kenneth W Dunn
- Indiana Center for Biological Microscopy, Indianapolis, Indiana
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Laura S Haneline
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana;
- Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana; and
- Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana
| |
Collapse
|
10
|
Khalid EB, Ayman EMEK, Rahman H, Abdelkarim G, Najda A. Natural products against cancer angiogenesis. Tumour Biol 2016; 37:14513-14536. [PMID: 27651162 DOI: 10.1007/s13277-016-5364-8] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 09/07/2016] [Indexed: 02/08/2023] Open
Abstract
The process of angiogenesis is quite well-known nowadays. Some medicines and extracts affecting this process are already used routinely in supporting the conventional treatment of many diseases that are considered angiogenic such as cancer. However, we must be aware that the area of currently used drugs of this type is much narrower than the theoretical possibilities existing in therapeutic angiogenesis. Plant substances are a large and diverse group of compounds that are found naturally in fruits, vegetables, spices, and medicinal plants. They also have different anticancer properties. The aim of this literature review article is to present the current state of knowledge concerning the molecular targets of tumor angiogenesis and the active substances (polyphenols, alkaloids, phytohormones, carbohydrates, and terpenes) derived from natural sources, whose activity against cancer angiogenesis has been confirmed.
Collapse
Affiliation(s)
- El Bairi Khalid
- Independent Research Team in Cancer Biology and Bioactive Compounds, Faculty of Medicine and Pharmacy, University Mohammed 1st, Oujda, Morocco.
| | - El-Meghawry El-Kenawy Ayman
- Department of Molecular Biology GEBRI, University of Sadat City, Sadat, Egypt
- Pathology Department, College of Medicine, Taif University, Taif, Saudi Arabia
| | - Heshu Rahman
- Department of Veterinary Clinical Diagnosis, Faculty of Veterinary Medicine, University Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
- Department of Medical Laboratory Science, Komar University of Science and Technology, ChaqChaq, Qularasy, Sulaimani City, Kurdistan Region, Iraq
| | - Guaadaoui Abdelkarim
- Laboratory of Genetics and Biotechnology (LGB), Faculty of Sciences, Mohammed 1st University (UMP), Oujda, Morocco
| | - Agnieszka Najda
- Quality Laboratory of Vegetable and Medicinal Materials, Department of Vegetable Crops and Medicinal Plants, University of Life Sciences in Lublin, Leszczyńskiego Street 58, 20-068, Lublin, Poland
| |
Collapse
|
11
|
Vandekeere S, Dewerchin M, Carmeliet P. Angiogenesis Revisited: An Overlooked Role of Endothelial Cell Metabolism in Vessel Sprouting. Microcirculation 2016; 22:509-17. [PMID: 26250801 DOI: 10.1111/micc.12229] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 07/29/2015] [Indexed: 02/06/2023]
Abstract
During vessel sprouting, endothelial "tip" cells migrate at the forefront, while the endothelial "stalk" cells elongate the sprout; endothelial "phalanx" cells line quiescent vessels. Tip and stalk cells can dynamically switch phenotypes under the control of VEGF and Notch signaling. Novel findings now show that in addition to signaling cascades, metabolism coregulates the formation of the new vasculature. Recent studies demonstrated that ECs rely primarily on glycolysis for ATP production, that glycolysis is further enhanced in angiogenic ECs, and that the key glycolytic regulator PFKFB3 codetermines angiogenesis by controlling the balance of tip versus stalk cells and promoting a migratory tip cell phenotype. On the other hand, FAO regulates endothelial stalk cell proliferation by providing carbon sources for biosynthetic processes, more particularly for de novo nucleotide synthesis for DNA replication. Here, we overview the current understanding of the various metabolic pathways in ECs and their impact on vessel formation in health and disease.
Collapse
Affiliation(s)
- Saar Vandekeere
- Laboratory of Angiogenesis & Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium.,Laboratory of Angiogenesis & Neurovascular link, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Mieke Dewerchin
- Laboratory of Angiogenesis & Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium.,Laboratory of Angiogenesis & Neurovascular link, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis & Neurovascular link, Vesalius Research Center, VIB, Leuven, Belgium.,Laboratory of Angiogenesis & Neurovascular link, Department of Oncology, KU Leuven, Leuven, Belgium
| |
Collapse
|
12
|
Fujinaga H, Fujinaga H, Watanabe N, Kato T, Tamano M, Terao M, Takada S, Ito Y, Umezawa A, Kuroda M. Cord blood-derived endothelial colony-forming cell function is disrupted in congenital diaphragmatic hernia. Am J Physiol Lung Cell Mol Physiol 2016; 310:L1143-54. [PMID: 27130531 DOI: 10.1152/ajplung.00357.2015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 04/22/2016] [Indexed: 01/07/2023] Open
Abstract
Vascular growth is necessary for normal lung development. Although endothelial progenitor cells (EPCs) play an important role in vascularization, little is known about EPC function in congenital diaphragmatic hernia (CDH), a severe neonatal condition that is associated with pulmonary hypoplasia. We hypothesized that the function of endothelial colony-forming cells (ECFCs), a type of EPC, is impaired in CDH. Cord blood (CB) was collected from full-term CDH patients and healthy controls. We assessed CB progenitor cell populations as well as plasma vascular endothelial growth factor (VEGF) and stromal cell-derived factor 1α (SDF1α) levels. CB ECFC clonogenicity; growth kinetics; migration; production of VEGF, SDF1α, and nitric oxide (NO); vasculogenic capacity; and mRNA expression of VEGF-A, fms-related tyrosine kinase 1 (FLT1), kinase insert domain receptor (KDR), nitric oxide synthase (NOS) 1-3, SDF1, and chemokine (C-X-C motif) receptor 4 (CXCR4) were also assessed. Compared with controls, CB ECFCs were decreased in CDH. CDH ECFCs had reduced potential for self-renewal, clonogenicity, proliferation, and migration. Their capacity for NO production was enhanced but their response to VEGF was blunted in CDH ECFCs. In vivo potential for de novo vasculogenesis was reduced in CDH ECFCs. There was no difference in CB plasma VEGF and SDF1α concentrations, VEGF and SDF1α production by ECFCs, and ECFC mRNA expression of VEGF-A, FLT1, KDR, NOS1-3, SDF1, and CXCR4 between CDH and control subjects. In conclusion, CB ECFC function is disrupted in CDH, but these changes may be caused by mechanisms other than alteration of VEGF-NO and SDF1-CXCR4 signaling.
Collapse
Affiliation(s)
- Hideshi Fujinaga
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan; Department of Reproductive Biology, National Institute for Child Health and Development, Tokyo, Japan; Division of Neonatology, Center for Maternal-Fetal and Neonatal Medicine, National Center for Child Health and Development, Tokyo, Japan;
| | - Hiroko Fujinaga
- Department of Reproductive Biology, National Institute for Child Health and Development, Tokyo, Japan
| | - Nobuyuki Watanabe
- Department of Human Genetics, National Institute for Child Health and Development, Tokyo, Japan; and
| | - Tomoko Kato
- Department of Systems BioMedicine, National Institute for Child Health and Development, Tokyo, Japan
| | - Moe Tamano
- Department of Systems BioMedicine, National Institute for Child Health and Development, Tokyo, Japan
| | - Miho Terao
- Department of Systems BioMedicine, National Institute for Child Health and Development, Tokyo, Japan
| | - Shuji Takada
- Department of Systems BioMedicine, National Institute for Child Health and Development, Tokyo, Japan
| | - Yushi Ito
- Division of Neonatology, Center for Maternal-Fetal and Neonatal Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Institute for Child Health and Development, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| |
Collapse
|
13
|
The angiogenic variation of skeletal site-specific human BMSCs from same alveolar cleft patients: a comparative study. J Mol Histol 2016; 47:153-68. [DOI: 10.1007/s10735-016-9662-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 01/22/2016] [Indexed: 12/22/2022]
|
14
|
Markeson D, Pleat JM, Sharpe JR, Harris AL, Seifalian AM, Watt SM. Scarring, stem cells, scaffolds and skin repair. J Tissue Eng Regen Med 2015; 9:649-68. [PMID: 24668923 DOI: 10.1002/term.1841] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 08/09/2013] [Accepted: 09/16/2013] [Indexed: 01/19/2023]
Abstract
The treatment of full thickness skin loss, which can be extensive in the case of large burns, continues to represent a challenging clinical entity. This is due to an on-going inability to produce a suitable tissue engineered substrate that can satisfactorily replicate the epidermal and dermal in vivo niches to fulfil both aesthetic and functional demands. The current gold standard treatment of autologous skin grafting is inadequate because of poor textural durability, scarring and associated contracture, and because of a paucity of donor sites in larger burns. Tissue engineering has seen exponential growth in recent years with a number of 'off-the-shelf' dermal and epidermal substitutes now available. Each has its own limitations. In this review, we examine normal wound repair in relation to stem/progenitor cells that are intimately involved in this process within the dermal niche. Endothelial precursors, in particular, are examined closely and their phenotype, morphology and enrichment from multiple sources are described in an attempt to provide some clarity regarding the controversy surrounding their classification and role in vasculogenesis. We also review the role of the next generation of cellularized scaffolds and smart biomaterials that attempt to improve the revascularisation of artificial grafts, the rate of wound healing and the final cosmetic and functional outcome.
Collapse
Affiliation(s)
- Daniel Markeson
- Stem Cell Research Laboratory, NHS Blood and Transplant, Oxford, UK
- Department of Plastic and Reconstructive Surgery, Stoke Mandeville Hospital, Aylesbury, UK
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- University College London Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, Royal Free Hospital, London, UK
| | - Jonathon M Pleat
- Department of Plastic and Reconstructive Surgery, Stoke Mandeville Hospital, Aylesbury, UK
- Department of Plastic and Reconstructive Surgery, Frenchay Hospital, Bristol, UK
| | - Justin R Sharpe
- Blond McIndoe Research Foundation, Queen Victoria Hospital, East Grinstead, West Sussex, UK
| | - Adrian L Harris
- Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Alexander M Seifalian
- University College London Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, Royal Free Hospital, London, UK
| | - Suzanne M Watt
- Stem Cell Research Laboratory, NHS Blood and Transplant, Oxford, UK
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| |
Collapse
|
15
|
Harrison IP, Selemidis S. Understanding the biology of reactive oxygen species and their link to cancer: NADPH oxidases as novel pharmacological targets. Clin Exp Pharmacol Physiol 2015; 41:533-42. [PMID: 24738947 DOI: 10.1111/1440-1681.12238] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 04/01/2014] [Accepted: 04/02/2014] [Indexed: 12/18/2022]
Abstract
Reactive oxygen species (ROS), the cellular products of myriad physiological processes, have long been understood to lead to cellular damage if produced in excess and to be a causative factor in cancer through the oxidation and nitration of various macromolecules. Reactive oxygen species influence various hallmarks of cancer, such as cellular proliferation and angiogenesis, through the promotion of cell signalling pathways intrinsic to these processes and can also regulate the function of key immune cells, such as macrophages and regulatory T cells, which promote angiogenesis in the tumour environment. Herein we emphasize the family of NADPH oxidase enzymes as the most likely source of ROS, which promote angiogenesis and tumourigenesis through signalling pathways within endothelial, immune and tumour cells. In this review we focus on the pharmacological inhibitors of NADPH oxidases and suggest that, compared with traditional anti-oxidants, they are likely to offer better alternatives for suppression of tumour angiogenesis. Despite the emerging enthusiasm towards the use of NADPH oxidase inhibitors for cancer therapy, this field is still in its infancy; in particular, there is a glaring lack of knowledge of the roles of NADPH oxidases in in vivo animal models and in human cancers. Certainly a clearer understanding of the relevant signalling pathways influenced by NADPH oxidases during angiogenesis in cancer is likely to yield novel therapeutic approaches.
Collapse
Affiliation(s)
- Ian P Harrison
- Department of Pharmacology, Monash University, Melbourne, Vic., Australia
| | | |
Collapse
|
16
|
Fosen KM, Thom SR. Hyperbaric oxygen, vasculogenic stem cells, and wound healing. Antioxid Redox Signal 2014; 21:1634-47. [PMID: 24730726 PMCID: PMC4175035 DOI: 10.1089/ars.2014.5940] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 04/14/2014] [Indexed: 12/15/2022]
Abstract
SIGNIFICANCE Oxidative stress is recognized as playing a role in stem cell mobilization from peripheral sites and also cell function. RECENT ADVANCES This review focuses on the impact of hyperoxia on vasculogenic stem cells and elements of wound healing. CRITICAL ISSUES Components of the wound-healing process in which oxidative stress has a positive impact on the various cells involved in wound healing are highlighted. A slightly different view of wound-healing physiology is adopted by departing from the often used notion of sequential stages: hemostatic, inflammatory, proliferative, and remodeling and instead organizes the cascade of wound healing as overlapping events or waves pertaining to reactive oxygen species, lactate, and nitric oxide. This was done because hyperoxia has effects of a number of cell signaling events that converge to influence cell recruitment/chemotaxis and gene regulation/protein synthesis responses which mediate wound healing. FUTURE DIRECTIONS Our alternative perspective of the stages of wound healing eases recognition of the multiple sites where oxidative stress has an impact on wound healing. This aids the focus on mechanistic events and the interplay among various cell types and biochemical processes. It also highlights the areas where additional research is needed.
Collapse
Affiliation(s)
- Katina M. Fosen
- Department of Emergency Medicine, Institute for Environmental Medicine, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania
| | - Stephen R. Thom
- Department of Emergency Medicine, University of Maryland, Baltimore, Maryland
| |
Collapse
|
17
|
Kim SJ, Wan Q, Cho E, Han B, Yoder MC, Voytik-Harbin SL, Na S. Matrix rigidity regulates spatiotemporal dynamics of Cdc42 activity and vacuole formation kinetics of endothelial colony forming cells. Biochem Biophys Res Commun 2014; 443:1280-5. [PMID: 24393843 DOI: 10.1016/j.bbrc.2013.12.135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 12/26/2013] [Indexed: 12/15/2022]
Abstract
Recent evidence has shown that endothelial colony forming cells (ECFCs) may serve as a cell therapy for improving blood vessel formation in subjects with vascular injury, largely due to their robust vasculogenic potential. The Rho family GTPase Cdc42 is known to play a primary role in this vasculogenesis process, but little is known about how extracellular matrix (ECM) rigidity affects Cdc42 activity during the process. In this study, we addressed two questions: Does matrix rigidity affect Cdc42 activity in ECFC undergoing early vacuole formation? How is the spatiotemporal activation of Cdc42 related to ECFC vacuole formation? A fluorescence resonance energy transfer (FRET)-based Cdc42 biosensor was used to examine the effects of the rigidity of three-dimensional (3D) collagen matrices on spatiotemporal activity of Cdc42 in ECFCs. Collagen matrix stiffness was modulated by varying the collagen concentration and therefore fibril density. The results showed that soft (150 Pa) matrices induced an increased level of Cdc42 activity compared to stiff (1 kPa) matrices. Time-course imaging and colocalization analysis of Cdc42 activity and vacuole formation revealed that Cdc42 activity was colocalized to the periphery of cytoplasmic vacuoles. Moreover, soft matrices generated faster and larger vacuoles than stiff matrices. The matrix-driven vacuole formation was enhanced by a constitutively active Cdc42 mutant, but significantly inhibited by a dominant-negative Cdc42 mutant. Collectively, the results suggest that matrix rigidity is a strong regulator of Cdc42 activity and vacuole formation kinetics, and that enhanced activity of Cdc42 is an important step in early vacuole formation in ECFCs.
Collapse
Affiliation(s)
- Seung Joon Kim
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Qiaoqiao Wan
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA; Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Eunhye Cho
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Bumsoo Han
- School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA; Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Mervin C Yoder
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Sherry L Voytik-Harbin
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA; Department of Basic Medical Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Sungsoo Na
- Department of Biomedical Engineering, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA.
| |
Collapse
|
18
|
Vielreicher M, Schürmann S, Detsch R, Schmidt MA, Buttgereit A, Boccaccini A, Friedrich O. Taking a deep look: modern microscopy technologies to optimize the design and functionality of biocompatible scaffolds for tissue engineering in regenerative medicine. J R Soc Interface 2013; 10:20130263. [PMID: 23864499 DOI: 10.1098/rsif.2013.0263] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
This review focuses on modern nonlinear optical microscopy (NLOM) methods that are increasingly being used in the field of tissue engineering (TE) to image tissue non-invasively and without labelling in depths unreached by conventional microscopy techniques. With NLOM techniques, biomaterial matrices, cultured cells and their produced extracellular matrix may be visualized with high resolution. After introducing classical imaging methodologies such as µCT, MRI, optical coherence tomography, electron microscopy and conventional microscopy two-photon fluorescence (2-PF) and second harmonic generation (SHG) imaging are described in detail (principle, power, limitations) together with their most widely used TE applications. Besides our own cell encapsulation, cell printing and collagen scaffolding systems and their NLOM imaging the most current research articles will be reviewed. These cover imaging of autofluorescence and fluorescence-labelled tissue and biomaterial structures, SHG-based quantitative morphometry of collagen I and other proteins, imaging of vascularization and online monitoring techniques in TE. Finally, some insight is given into state-of-the-art three-photon-based imaging methods (e.g. coherent anti-Stokes Raman scattering, third harmonic generation). This review provides an overview of the powerful and constantly evolving field of multiphoton microscopy, which is a powerful and indispensable tool for the development of artificial tissues in regenerative medicine and which is likely to gain importance also as a means for general diagnostic medical imaging.
Collapse
Affiliation(s)
- M Vielreicher
- Department of Chemical and Biological Engineering, Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nuremberg, Paul-Gordan-Strasse 3, 91052 Erlangen, Germany.
| | | | | | | | | | | | | |
Collapse
|
19
|
Vascular endothelial growth factors (VEGFs) and stroke. Cell Mol Life Sci 2013; 70:1753-61. [PMID: 23475070 DOI: 10.1007/s00018-013-1282-8] [Citation(s) in RCA: 188] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 01/28/2013] [Accepted: 01/28/2013] [Indexed: 12/17/2022]
Abstract
Vascular endothelial growth factors (VEGFs) have been shown to participate in atherosclerosis, arteriogenesis, cerebral edema, neuroprotection, neurogenesis, angiogenesis, postischemic brain and vessel repair, and the effects of transplanted stem cells in experimental stroke. Most of these actions involve VEGF-A and the VEGFR-2 receptor, but VEGF-B, placental growth factor, and VEGFR-1 have been implicated in some cases as well. VEGF signaling pathways represent important potential targets for the acute and chronic treatment of stroke.
Collapse
|
20
|
Roubelakis MG, Tsaknakis G, Pappa KI, Anagnou NP, Watt SM. Spindle shaped human mesenchymal stem/stromal cells from amniotic fluid promote neovascularization. PLoS One 2013; 8:e54747. [PMID: 23359810 PMCID: PMC3554641 DOI: 10.1371/journal.pone.0054747] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 12/14/2012] [Indexed: 12/31/2022] Open
Abstract
Human amniotic fluid obtained at amniocentesis, when cultured, generates at least two morphologically distinct mesenchymal stem/stromal cell (MSC) subsets. Of these, the spindle shaped amniotic fluid MSCs (SS-AF-MSCs) contain multipotent cells with enhanced adipogenic, osteogenic and chondrogenic capacity. Here, we demonstrate, for the first time, the capacity of these SS-AF-MSCs to support neovascularization by umbilical cord blood (UCB) endothelial colony forming cell (ECFC) derived cells in both in vitro and in vivo models. Interestingly, although the kinetics of vascular tubule formation in vitro were similar when the supporting SS-AF-MSCs were compared with the best vasculogenic supportive batches of bone marrow MSCs (BMSCs) or human dermal fibroblasts (hDFs), SS-AF-MSCs supported vascular tubule formation in vivo more effectively than BMSCs. In NOD/SCID mice, the human vessels inosculated with murine vessels demonstrating their functionality. Proteome profiler array analyses revealed both common and distinct secretion profiles of angiogenic factors by the SS-AF-MSCs as opposed to the hDFs and BMSCs. Thus, SS-AF-MSCs, which are considered to be less mature developmentally than adult BMSCs, and intermediate between adult and embryonic stem cells in their potentiality, have the additional and very interesting potential of supporting increased neovascularisation, further enhancing their promise as vehicles for tissue repair and regeneration.
Collapse
Affiliation(s)
- Maria G. Roubelakis
- Laboratory of Biology, University of Athens, Medical School and Cell and Gene Therapy Laboratory, Centre of Basic Research, Biomedical Research Foundation, Academy of Athens (BRFAA), Athens, Greece
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, and Stem Cell Research Laboratory, NHS Blood and Transplant, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Grigorios Tsaknakis
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, and Stem Cell Research Laboratory, NHS Blood and Transplant, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Kalliopi I. Pappa
- First Department of Obstetrics and Gynecology, University of Athens, School of Medicine, Athens, Greece
| | - Nicholas P. Anagnou
- Laboratory of Biology, University of Athens, Medical School and Cell and Gene Therapy Laboratory, Centre of Basic Research, Biomedical Research Foundation, Academy of Athens (BRFAA), Athens, Greece
| | - Suzanne M. Watt
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, and Stem Cell Research Laboratory, NHS Blood and Transplant, John Radcliffe Hospital, Headington, Oxford, United Kingdom
- * E-mail:
| |
Collapse
|
21
|
Intra-arterial Allogeneic Mesenchymal Stem Cells for Critical Limb Ischemia are Safe and Efficacious: Report of a Phase I Study. World J Surg 2013; 37:915-22. [DOI: 10.1007/s00268-012-1892-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
22
|
Watt SM, Gullo F, van der Garde M, Markeson D, Camicia R, Khoo CP, Zwaginga JJ. The angiogenic properties of mesenchymal stem/stromal cells and their therapeutic potential. Br Med Bull 2013; 108:25-53. [PMID: 24152971 PMCID: PMC3842875 DOI: 10.1093/bmb/ldt031] [Citation(s) in RCA: 185] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Blood vessel formation is fundamental to development, while its dysregulation can contribute to serious disease. Expectations are that hundreds of millions of individuals will benefit from therapeutic developments in vascular biology. MSCs are central to the three main vascular repair mechanisms. SOURCES OF DATA Key recent published literature and ClinicalTrials.gov. AREAS OF AGREEMENT MSCs are heterogeneous, containing multi-lineage stem and partly differentiated progenitor cells, and are easily expandable ex vivo. There is no single marker defining native MSCs in vivo. Their phenotype is strongly determined by their specific microenvironment. Bone marrow MSCs have skeletal stem cell properties. Having a perivascular/vascular location, they contribute to vascular formation and function and might be harnessed to regenerate a blood supply to injured tissues. AREAS OF CONTROVERSY These include MSC origin, phenotype and location in vivo and their ability to differentiate into functional cardiomyocytes and endothelial cells or act as vascular stem cells. In addition their efficacy, safety and potency in clinical trials in relation to cell source, dose, delivery route, passage and timing of administration, but probably even more on the local preconditioning and the mechanisms by which they exert their effects. GROWING POINTS Understanding the origin and the regenerative environment of MSCs, and manipulating their homing properties, proliferative ability and functionality through drug discovery and reprogramming strategies are important for their efficacy in vascular repair for regenerative medicine therapies and tissue engineering approaches. AREAS TIMELY FOR DEVELOPING RESEARCH Characterization of MSCs' in vivo origins and biological properties in relation to their localization within tissue niches, reprogramming strategies and newer imaging/bioengineering approaches.
Collapse
Affiliation(s)
- Suzanne M Watt
- Stem Cell Research Laboratory, Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DU, UK
| | | | | | | | | | | | | |
Collapse
|
23
|
Endothelial progenitor cells: the promise of cell-based therapies for acute lung injury. Inflamm Res 2012; 62:3-8. [PMID: 23138575 DOI: 10.1007/s00011-012-0570-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Revised: 10/03/2012] [Accepted: 10/22/2012] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Endothelial progenitor cells (EPCs) are defined as a special type of stem cell that have been found to directly incorporate into injured vessels and that participate in angiogenesis and reconstruction by differentiation into endothelial cells. EPCs are widely used to therapeutically treat cardiovascular disease, limb ischemia and vascular repair. However, the role of EPCs in inflammatory diseases, especially in lung injury, is less studied. OBJECTIVE To investigate the application of EPCs to vascular repair, and the role of EPCs in acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). METHODS A computer-based online search was performed in the PubMed database and Web of Science database for articles published, concerning EPCs, angiogenesis, ALI/ARDS and stem cell transplantation CONCLUSION EPCs have a therapeutic potential for vascular regeneration and may emerge as novel strategy for the diseases that are associated with ALI/ARDS.
Collapse
|
24
|
Holnthoner W, Hohenegger K, Husa AM, Muehleder S, Meinl A, Peterbauer-Scherb A, Redl H. Adipose-derived stem cells induce vascular tube formation of outgrowth endothelial cells in a fibrin matrix. J Tissue Eng Regen Med 2012; 9:127-36. [DOI: 10.1002/term.1620] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Revised: 07/09/2012] [Accepted: 08/25/2012] [Indexed: 01/12/2023]
Affiliation(s)
- Wolfgang Holnthoner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Biochemical Engineering; University of Applied Sciences Technikum Wien; Vienna Austria
| | - Karin Hohenegger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - Anna-Maria Husa
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Biochemical Engineering; University of Applied Sciences Technikum Wien; Vienna Austria
| | - Severin Muehleder
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Biochemical Engineering; University of Applied Sciences Technikum Wien; Vienna Austria
| | - Alexandra Meinl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration; Vienna Austria
- Medical University of Vienna; Bernhard Gottlieb University Clinic of Dentistry; Vienna Austria
| | | | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Austrian Cluster for Tissue Regeneration; Vienna Austria
| |
Collapse
|
25
|
Maleki S, Björck HM, Folkersen L, Nilsson R, Renner J, Caidahl K, Franco-Cereceda A, Länne T, Eriksson P. Identification of a novel flow-mediated gene expression signature in patients with bicuspid aortic valve. J Mol Med (Berl) 2012; 91:129-39. [PMID: 22903503 PMCID: PMC3536974 DOI: 10.1007/s00109-012-0942-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 06/18/2012] [Accepted: 08/02/2012] [Indexed: 12/22/2022]
Abstract
Individuals with bicuspid aortic valve (BAV) are at significantly higher risk of developing serious aortic complications than individuals with tricuspid aortic valves (TAV). Studies have indicated an altered aortic blood flow in patients with BAV; however, the extent to which altered flow influences the pathological state of BAV aorta is unclear. In the present study, we dissected flow-mediated aortic gene expression in patients undergoing elective open heart surgery. A large collection of public microarray data sets were firstly screened for consistent co-expression with five well-characterized flow-regulated genes (query genes). Genes with co-expression probability of >0.5 were selected and further analysed in expression profiles (127 arrays) from ascending aorta of BAV and TAV patients. Forty-four genes satisfied two filtering criteria: a significant correlation with one or more of the query genes (R > 0.40) and differential expression between patients with BAV and TAV. No gene fulfilled the criteria in mammary artery (88 arrays), an artery not in direct contact with the valve. Fifty-five percent of the genes significantly altered between BAV and TAV patients showed differential expression between two identified flow regions in the rat aorta. A large proportion of the identified genes were related to angiogenesis and/or wound healing, with pro-angiogenesis genes downregulated and inhibitory genes upregulated in patients with BAV. Moreover, differential expression of ZFP36, GRP116 and PKD2 was confirmed using immunohistochemistry. Implementing a new strategy, we have demonstrated an angiostatic gene expression signature in patients with BAV, indicating impaired wound healing in these patients, potentially involved in BAV-associated aortopathy.
Collapse
Affiliation(s)
- Shohreh Maleki
- Atherosclerosis Research Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
| | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Wang F, Li Z, Guan J. Fabrication of mesenchymal stem cells-integrated vascular constructs mimicking multiple properties of the native blood vessels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:769-83. [PMID: 23594067 DOI: 10.1080/09205063.2012.712029] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mesenchymal stem cells (MSCs)-populated small diameter (6 mm) vascular constructs were fabricated. The constructs mimicked the native vessels in multiple levels, i.e. having similar structure and morphology to that of the extracellular matrix in the native blood vessels; recapitulating mechanical properties such as compliance and burst pressure of the native blood vessels; simulating the highly cellularized nature of the native blood vessels; and having an antithrombogenic lumen. The constructs were fabricated by simultaneously assembling poly(ester carbonate urethane) urea nanofibers and MSCs in an electrical field. The nanofibers had a diameter similar to that of the collagen and elastin fibers in the native blood vessels. MSCs were distributed evenly in the constructs. The constructs were highly cellularized when the cell loading density was exceeded 6 million/ml. The vascular constructs were strong and flexible with breaking strains of 144-202%, tensile strengths of 0.80-1.29 MPa, compliances of 13.23-21.96 × 10(-4 )mmHg(-1), stiffness indexes of 7.3-9.8, and burst pressures greater than 1700 mmHg. These mechanical properties were similar to those of the native blood vessels. In vitro platelet deposition experiments showed that platelet adhesion was remarkably decreased in the MSCs-populated constructs compared to that in the construct without MSCs. An increase in MSC density in the constructs further decreased platelet adhesion. When cultured in a spinner flask, MSCs maintained their mitochondria viability and cell number during a two-week culture period, as confirmed by MTT and dsDNA assays. These vascular constructs may hold the potential to regenerate functional small diameter vessels for cardiovascular tissue repair.
Collapse
Affiliation(s)
- Feng Wang
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210, USA
| | | | | |
Collapse
|
27
|
Athanassopoulos A, Tsaknakis G, Newey SE, Harris AL, Kean J, Tyler MP, Watt SM. Microvessel networks [corrected] pre-formed in artificial clinical grade dermal substitutes in vitro using cells from haematopoietic tissues. Burns 2012; 38:691-701. [PMID: 22360956 DOI: 10.1016/j.burns.2011.12.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2011] [Revised: 11/06/2011] [Accepted: 12/21/2011] [Indexed: 12/28/2022]
Abstract
Forming a microcirculation is critical for vascularisation of artificial skin substitutes. One strategy to improve speed of grafting is to pre-form microvascular networks in the substitute before applying to a wound. For clinical application, this requires sufficient functional endothelial cell numbers. In vitro endothelial colony forming cells (ECFCs) derived cells were expanded from cord and adult blood donations and co-cultured with human dermal fibroblasts or bone marrow mesenchymal stem/stromal cells to form microvascular networks in the presence or absence of dermal substitutes which are in clinical use. The number of endothelial cells generated ranged from 1.03×10(9) to 2.18×10(11) from 10 adult blood donations and 1×10(12) to 1.76×10(13) from 6 cord blood units after 50 days in culture. Two adult donations failed to generate ECFCs. Both cord and adult blood cells formed 2D microvascular networks in vitro, although there was a significant difference in the functional capacity of adult and cord blood ECFCs. While co-culture of the latter within dermal substitutes Matriderm or Integra demonstrated the formation of 3D microvascular networks penetrating 100μm, enhanced expansion, while maintaining functional capacity, of adult blood cells is required for fully pre-vascularising the clinical grade acellular dermal substitutes used here prior to applying these to burns.
Collapse
|
28
|
MRI tracking of FePro labeled fresh and cryopreserved long term in vitro expanded human cord blood AC133+ endothelial progenitor cells in rat glioma. PLoS One 2012; 7:e37577. [PMID: 22662174 PMCID: PMC3360770 DOI: 10.1371/journal.pone.0037577] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Accepted: 04/24/2012] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Endothelial progenitors cells (EPCs) are important for the development of cell therapies for various diseases. However, the major obstacles in developing such therapies are low quantities of EPCs that can be generated from the patient and the lack of adequate non-invasive imaging approach for in vivo monitoring of transplanted cells. The objective of this project was to determine the ability of cord blood (CB) AC133+ EPCs to differentiate, in vitro and in vivo, toward mature endothelial cells (ECs) after long term in vitro expansion and cryopreservation and to use magnetic resonance imaging (MRI) to assess the in vivo migratory potential of ex vivo expanded and cryopreserved CB AC133+ EPCs in an orthotopic glioma rat model. MATERIALS, METHODS AND RESULTS The primary CB AC133+ EPC culture contained mainly EPCs and long term in vitro conditions facilitated the maintenance of these cells in a state of commitment toward endothelial lineage. At days 15-20 and 25-30 of the primary culture, the cells were labeled with FePro and cryopreserved for a few weeks. Cryopreserved cells were thawed and in vitro differentiated or i.v. administered to glioma bearing rats. Different groups of rats also received long-term cultured, magnetically labeled fresh EPCs and both groups of animals underwent MRI 7 days after i.v. administration of EPCs. Fluorescent microscopy showed that in vitro differentiation of EPCs was not affected by FePro labeling and cryopreservation. MRI analysis demonstrated that in vivo accumulation of previously cryopreserved transplanted cells resulted in significantly higher R2 and R2* values indicating a higher rate of migration and incorporation into tumor neovascularization of previously cryopreserved CB AC133+ EPCs to glioma sites, compared to non-cryopreserved cells. CONCLUSION Magnetically labeled CB EPCs can be in vitro expanded and cryopreserved for future use as MRI probes for monitoring the migration and incorporation to the sites of neovascularization.
Collapse
|
29
|
Bader HL, Hsu T. Systemic VHL gene functions and the VHL disease. FEBS Lett 2012; 586:1562-9. [PMID: 22673568 DOI: 10.1016/j.febslet.2012.04.032] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 04/16/2012] [Accepted: 04/17/2012] [Indexed: 12/19/2022]
Abstract
The von Hippel-Lindau tumor suppressor gene (VHL) is best known as an E3 ubiquitin ligase that negatively regulates the hypoxia inducible factor (HIF). VHL mutations are the genetic defects underlying several human diseases including polycythemia, familial VHL tumor syndrome and sporadic renal cell carcinoma. VHL mutations can lead to cell-autonomous phenotypes in the tumor cells. However, non-tumor cell-autonomous functions of VHL have also been noted. VHL tumor-derived cytokines can promote inflammation and induce mobilization of endothelial progenitor cells. Up-regulation of HIF caused by VHL loss-of-function mutants, including heterozygotes, has been shown to increase the activities of hematopoietic stem cells, endothelial cells and myeloid cells. As such, systemic functions of VHL likely play important roles in the development of VHL disease.
Collapse
Affiliation(s)
- Hannah L Bader
- Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA
| | | |
Collapse
|
30
|
|
31
|
Maurice DH. Subcellular signaling in the endothelium: cyclic nucleotides take their place. Curr Opin Pharmacol 2011; 11:656-64. [PMID: 22036169 DOI: 10.1016/j.coph.2011.10.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 09/29/2011] [Accepted: 10/04/2011] [Indexed: 12/26/2022]
Abstract
When lecturing on the topic of cellular signaling I have had occasion to ask the class for examples of cellular processes NOT impacted by cyclic AMP (cAMP) and am struck by how few examples exist. Indeed, studies spanning the past 60 years have detailed how this ubiquitous second messenger impacts virtually all cellular processes, including intermediary metabolism, contractility, motility, proliferation, and gene expression in most mammalian cells. Since the hydrophobic cAMP could in principle diffuse rapidly throughout the cell once formed, the remarkable spatial and temporal specificity of its numerous actions in cells is truly impressive. Herein I introduce the main players involved in coordinating actions of cAMP in vascular endothelial cells (VECs), and focus on the increasing awareness of the dominant role that cyclic nucleotide phosphodiesterases (PDEs), the sole cellular enzymes capable of hydrolytically inactivating cAMP, play in fostering this specificity.
Collapse
Affiliation(s)
- Donald H Maurice
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada K7L 3N6.
| |
Collapse
|
32
|
Abstract
Autologous endothelial progenitor cell (EPC) populations represent a novel treatment for therapeutic revascularization and vascular repair for diabetic patients with complications including diabetic retinopathy. Current therapies are applicable to late-stage disease and carry significant side effects, whereas cell-based therapy may provide an alternative by repairing areas of vasodegeneration and reversing ischemia. However, EPCs from diabetic patients with vascular complications are dysfunctional. Moreover, the diabetic environment poses its own challenges and complicates the use of autologous EPCs. Before EPCs become the ideal "cell therapy," the optimal EPC must be determined, any functional dysfunction must be corrected prior to use, and the diabetic milieu will require modification to accept the EPCs. This review describes the rationale for harnessing the vascular reparative properties of EPCs with emphasis on the molecular and phenotypic nature of healthy EPCs, how diabetes alters them, and novel strategies to improve dysfunctional EPCs.
Collapse
Affiliation(s)
- Lynn C Shaw
- Department of Pharmacology and Experimental Therapeutics, University of Florida, Gainesville, FL 32611, USA.
| | | | | |
Collapse
|
33
|
Effects of obstetric factors and storage temperatures on the yield of endothelial colony forming cells from umbilical cord blood. Angiogenesis 2011; 14:381-92. [PMID: 21720855 PMCID: PMC3155043 DOI: 10.1007/s10456-011-9222-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Accepted: 06/16/2011] [Indexed: 11/08/2022]
Abstract
As umbilical cord blood (UCB) is a rich source of endothelial colony-forming cells (ECFC), our aim was twofold: (1) to examine potential obstetric selection criteria for achieving the highest ECFC yields from UCB units, and (2) to determine whether transient storage temperatures of fresh UCB and cryopreservation of UCB units affected ECFC yield and function. ECFC quality was assessed before and after cryopreservation by their clonogenic proliferative potential. Of the 20 factors examined, placental weight was the only statistically significant obstetric factor that predicted ECFC frequency in UCB. Studies on the effects of storage revealed that transient storage of fresh UCB at 4°C reduced ECFC yield compared with storage at 22°C, while cryopreservation of UCB MNCs significantly reduced ECFC recoveries. To our knowledge, this is the first demonstration that placental weight and temperature of storage prior to processing or culture have significant effects on ECFC frequency in UCB. Our studies further support the evidence that cryopreservation of UCB MNCs compromises ECFC recovery.
Collapse
|
34
|
Medina RJ, O'Neill CL, O'Doherty TM, Knott H, Guduric-Fuchs J, Gardiner TA, Stitt AW. Myeloid angiogenic cells act as alternative M2 macrophages and modulate angiogenesis through interleukin-8. Mol Med 2011; 17:1045-55. [PMID: 21670847 DOI: 10.2119/molmed.2011.00129] [Citation(s) in RCA: 138] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Accepted: 06/08/2011] [Indexed: 01/07/2023] Open
Abstract
Endothelial progenitor cells (EPCs) promote angiogenesis, and clinical trials have shown such cell therapy to be feasible for treating ischemic disease. However, clinical outcomes have been contradictory owing to the diverse range of EPC types used. We recently characterized two EPC subtypes, and identified outgrowth endothelial cells as the only EPC type with true progenitor and endothelial characteristics. By contrast, myeloid angiogenic cells (MACs) were shown to be monocytic cells without endothelial characteristics despite being widely described as "EPCs." In the current study we demonstrated that although MACs do not become endothelial cells or directly incorporate into a microvascular network, they can significantly induce endothelial tube formation in vitro and vascular repair in vivo. MAC-derived interleukin-8 (IL-8) was identified as a key paracrine factor, and blockade of IL-8 but not vascular endothelial growth factor (VEGF) prevented MAC-induced angiogenesis. Extracellular IL-8 transactivates VEGFR2 and induces phosphorylation of extracellular signal-regulated kinases. Further transcriptomic and immunophenotypic analysis indicates that MACs represent alternative activated M2 macrophages. Our findings demonstrate an unequivocal role for MACs in angiogenesis, which is linked to paracrine release of cytokines such as IL-8. We also show, for the first time, the true identity of these cells as alternative M2 macrophages with proangiogenic, antiinflammatory and pro-tissue-repair properties.
Collapse
Affiliation(s)
- Reinhold J Medina
- Centre for Vision and Vascular Science, School of Medicine, Dentistry, and Biomedical Science, Queen's University Belfast, Belfast, UK
| | | | | | | | | | | | | |
Collapse
|
35
|
Khoo CP, Micklem K, Watt SM. A comparison of methods for quantifying angiogenesis in the Matrigel assay in vitro. Tissue Eng Part C Methods 2011; 17:895-906. [PMID: 21517696 DOI: 10.1089/ten.tec.2011.0150] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Angiogenesis is of major interest because of its involvement in numerous pathologies or for promoting tissue repair. It is often assessed by the ability of endothelial cells to sprout, migrate, and form vascular tubules in Matrigel in vitro. Matrigel contains a mixture of basement membrane components, which stimulate endothelial cells to form capillary-like hexagonal structures, and is often preferred over other in vitro assays because of its ease of use, rapidity and the ability to measure key steps in angiogenesis, including migration, protease activity, and tubule formation. Various methods have been used to quantitate tubule formation, yet no consensus has been reached regarding the best quantification method for evaluating the efficacy of angiogenic stimulants or inhibitors in this Matrigel assay. Here, we have measured the ability of umbilical cord blood endothelial colony-forming cell-derived cells to form tubules in growth factor reduced Matrigel in the presence or absence of two angiogenic inhibitors, suramin and SU6668, to compare the benefits and limitations of two quantification methods-Angiosys and Wimasis. These comparative analyses revealed that both Angiosys and Wimasis are easy to use, accurately quantify angiogenesis, and will suit the needs of different types of users.
Collapse
Affiliation(s)
- Cheen Peen Khoo
- Stem Cell Research Laboratory, NHS Blood and Transplant, Oxford, United Kingdom.
| | | | | |
Collapse
|
36
|
The role of single cell derived vascular resident endothelial progenitor cells in the enhancement of vascularization in scaffold-based skin regeneration. Biomaterials 2011; 32:4109-17. [PMID: 21435711 DOI: 10.1016/j.biomaterials.2011.02.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Accepted: 02/16/2011] [Indexed: 11/22/2022]
Abstract
Increasing evidence suggests that vascular resident endothelial progenitor cells (VR-EPCs) are present in several organs, playing an important role in postnatal neovascularization. Here, we isolated and characterized VR-EPCs from cardiac tissue in vitro, evaluating their regenerative potential in vivo. VR-EPCs showed to be highly clonogenic and expressed several stem and differentiation markers. Under endothelial differentiation conditions, cells form capillary-like structures, in contrast to osteogenic or adipogenic differentiation conditions where no functional changes were observed. After seeding in scaffolds, cells were distributed homogeneously and directly attached to the scaffold. Then, cell seeded scaffolds were used to induce dermal regeneration in a nude mice full skin defect model. The presence of VR-EPCs enhanced dermal vascularization. Histological assays showed increased vessel number (p < 0.05) and cellularization (p < 0.05) in VR-EPCs group. In order to explore possible mechanisms of vascular regeneration, in vitro experiments were performed. Results showed that pro-angiogenic environments increased the migration capacity (p < 0.001) and ability to form capillary-like structures (p < 0.05) of VR-EPC. In addition, VR-EPCs secreted several pro-angiogenic molecules including VEGF and PDGF. These results indicate that a highly clonogenic population of VR-EPCs might be established in vitro, representing a new source for therapeutic vascularization in tissue engineering and regeneration.
Collapse
|
37
|
Stitt AW, O'Neill CL, O'Doherty MT, Archer DB, Gardiner TA, Medina RJ. Vascular stem cells and ischaemic retinopathies. Prog Retin Eye Res 2011; 30:149-66. [PMID: 21352947 DOI: 10.1016/j.preteyeres.2011.02.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Revised: 02/11/2011] [Accepted: 02/15/2011] [Indexed: 12/30/2022]
Abstract
Retinal ischaemic disorders such as diabetic retinopathy and retinal vein occlusion are common. The hypoxia-related stimuli from oxygen-deprived neural and glial networks can drive expression of growth factors and cytokines which induce leakage from the surviving vasculature and/or pre-retinal and papillary neovascularisation. If left untreated, retinal vascular stasis, hypoxia or ischaemia can lead to macular oedema or fibro-vascular scar formation which are associated with severe visual impairment, and even blindness. Current therapies for ischaemic retinopathies include laser photocoagulation, injection of corticosteroids or VEGF-antibodies and vitreoretinal surgery, however they carry significant side effects. As an alternative approach, we propose that if reparative intra-retinal angiogenesis can be harnessed at the appropriate stage, ischaemia could be contained or reversed. This review provides evidence that reperfusion of ischaemic retina and suppression of sight-threatening sequelae is possible in both experimental and clinical settings. In particular, there is emphasis on the clinical potential for endothelial progenitor cells (EPCs) to promote vascular repair and reversal of ischaemic injury in various tissues including retina. Gathering evidence from an extensive published literature, we outline the molecular and phenotypic nature of EPCs, how they are altered in disease and provide a rationale for harnessing the vascular reparative properties of various cell sub-types. When some of the remaining questions surrounding the clinical use of EPCs are addressed, they may provide an exciting new therapeutic option for treating ischaemic retinopathies.
Collapse
Affiliation(s)
- Alan W Stitt
- Centre for Vision and Vascular Science, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Royal Victoria Hospital, Belfast BT12 6BA, Northern Ireland, UK.
| | | | | | | | | | | |
Collapse
|
38
|
Li H, Liu Q, Wang N, Xu J. Correlation of different NADPH oxidase homologues with late endothelial progenitor cell senescence induced by angiotensin II: effect of telmisartan. Intern Med 2011; 50:1631-42. [PMID: 21841319 DOI: 10.2169/internalmedicine.50.5250] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Involvement of different NADPH oxidase (NOX) homologues in late endothelial progenitor cell (EPC) senescence induced by angiotensin II (Ang II) remains rarely studied systemically. The goal of our study was to determine NOX homologues which are correlated with late EPCs senescence induced by Ang II. The inhibitory effect of telmisartan was also studied. METHODS AND MATERIALS Late EPCs were obtained from mononuclear cells isolated from peripheral venous blood. Stimulated by Ang II with telmisartan (Tel) or VAS2870 pretreatment or siRNA prior silencing, NOX was detected by RT-PCR and Western blot. Cell senescence was measured by the acidic β-galactosidase activity assay and cell cycle analysis. Intracellular reactive oxygen species (ROS) were analyzed by flow cytometer based on DCFH-DA. RESULTS A bi-phasic change existed in NOX level after Ang II stimulation. Translocated NOX5 was correlated with early and rapid ROS production, but it contributed little to EPCs senescence. NOX2 and NOX4 were correlated with the late and slow phase and contributed greatly to EPCs senescence. There were no significant changes in NOX1 or NOX3. Telmisartan effectively depressed NOX change and delayed late EPCs senescence. CONCLUSION Ang II accelerates late EPCs senescence mainly via increased ROS originating from NOX2 and NOX4 up-regulation or translocated NOX5. Telmisartan effectively inhibited that cascade reaction and delayed EPCs senescence.
Collapse
Affiliation(s)
- Hong Li
- Department of Cardiology, the Affiliated Hangzhou Hospital, Nanjing Medical University, China
| | | | | | | |
Collapse
|
39
|
Polak J, Bravery CA, Prescott C. Translation and commercialization of regenerative medicines. J R Soc Interface 2010; 7 Suppl 6:S675-6. [PMID: 20926428 DOI: 10.1098/rsif.2010.0498.focus] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- Julia Polak
- Faculty of Medicine, Regenerative Medicine, Department of Chemical Engineering, Imperial College London, South Kensington Campus, Room 144, Roderic Hill Building, London SW7 2AZ, UK.
| | | | | |
Collapse
|