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Al-Omar MT, Alnajjar MT, Ahmed ZT, Salaas FMI, Alrefaei TSM, Haider KH. Endothelial progenitor cell-derived small extracellular vesicles for myocardial angiogenesis and revascularization. J Clin Transl Res 2022; 8:476-487. [PMID: 36457898 PMCID: PMC9709527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/23/2022] [Accepted: 10/20/2022] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Endothelial progenitor cells (EPCs) have been well-studied for their differentiation potential and paracrine activity in vitro and in experimental animal studies. EPCs are the precursors of endothelial cells (ECs) and a rich source of pro-angiogenic factors, and hence, possess enormous potential to treat ischemic heart through myocardial angiogenesis. Their proven safety and efficacy observed during the pre-clinical and clinical studies have portrayed them as a near ideal cell type for cell-based therapy of ischemic heart disease.In response to the chemical cues from the ischemic heart, EPCs from the bone marrow and peripheral circulation home-in to the ischemic myocardium and participate in the intrinsic repair process at the molecular and cellular levels through paracrine activity and EC differentiation. EPCs also release small extracellular vesicles (sEVs) loaded with bioactive molecules as part of their paracrine activity for intercellular communication to participate in the reparative process in the heart. AIM This literature review is based on the published data regarding the characteristic features of EPC-derived sEVs and their proteomic and genomic payload, besides facilitating safe and effective repair of the ischemic myocardium. In light of the encouraging published data, translational and clinical assessment of EPC-derived sEVs is warranted. We report the recent experimental animal studies and their findings using EPC-derived sEVs on cardiac angiogenesis and preservation of cardiac function. RELEVANCE FOR PATIENTS With the promising results from pre-clinical studies, clinical trials should be conducted to assess the clinical utility of EPC-derived sEVs in the treatment of the ischemic myocardium.
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Affiliation(s)
- Maher T. Al-Omar
- Department of Basic Sciences, College of Medicine, Sulaiman Al Rajhi University, Al-Bukairyah 52726, Saudi Arabia
| | - Mahmoud T. Alnajjar
- Department of Basic Sciences, College of Medicine, Sulaiman Al Rajhi University, Al-Bukairyah 52726, Saudi Arabia
| | - Ziyad T. Ahmed
- Department of Basic Sciences, College of Medicine, Sulaiman Al Rajhi University, Al-Bukairyah 52726, Saudi Arabia
| | - Faris M. I. Salaas
- Department of Basic Sciences, College of Medicine, Sulaiman Al Rajhi University, Al-Bukairyah 52726, Saudi Arabia
| | - Tamim S. M. Alrefaei
- Department of Basic Sciences, College of Medicine, Sulaiman Al Rajhi University, Al-Bukairyah 52726, Saudi Arabia
| | - Khawaja H. Haider
- Department of Basic Sciences, College of Medicine, Sulaiman Al Rajhi University, Al-Bukairyah 52726, Saudi Arabia
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Rapid and chronological expression of angiogenetic genes is a major mechanism involved in cell sheet transplantation in a rat gastric ulcer model. Regen Ther 2022; 21:372-379. [PMID: 36161102 PMCID: PMC9474311 DOI: 10.1016/j.reth.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/12/2022] [Accepted: 08/28/2022] [Indexed: 11/26/2022] Open
Abstract
Introduction Cell sheet technology has been applied in the treatment of patients with severe cardiac failure. Although the paracrine effect of cell sheets accelerating angiogenesis is thought to be the intrinsic mechanism for improvement of cardiac function, little is known about how a cell sheet would function in the abdomen. Methods We used acetic acid-induced gastric ulcer rat model to elucidate the mechanisms of myoblast sheet transplantation in the abdomen. Myoblast sheet was implanted onto the serosal side of the gastric ulcer and the effect of sheet transplantation was analyzed. The maximal diameter of the ulcer and the changes in the gene expression of various growth factors in transplanted site was analyzed. The progenitor marker CD34 was also examined by immunohistochemistry. Results Cell sheet transplantation accelerated the ulcer healing. qPCR showed that angiogenic growth factors were significantly upregulated around the ulcer in the transplantation group. In addition, at first, HIF-1a and SDF-1 continued to increase from 3 h after transplantation to 72 h, then VEGF increased significantly after 24 h with a slight delay. An immunohistochemical analysis showed a statistically significant increase in CD34 positivity in the tissue around the ulcer in the transplantation group. Conclusion Myoblast sheet secreted various growth factors and cytokines immediately after transplantation onto the serosal side of artificial ulcer in the abdomen. Autonomous secretion, resulting in the time-dependent and well-orchestrated gene expression of various growth factors, plays a crucial role in the cell sheet function. Cell sheet transplantation is expected to be useful to support angiogenesis of the ischemic area in the abdominal cavity.
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Lee YN, Wang HH, Su CH, Lee HI, Chou YH, Hsieh CL, Liu WT, Shu KT, Chang KT, Yeh HI, Wu YJ. Deferoxamine accelerates endothelial progenitor cell senescence and compromises angiogenesis. Aging (Albany NY) 2021; 13:21364-21384. [PMID: 34508614 PMCID: PMC8457614 DOI: 10.18632/aging.203469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 08/02/2021] [Indexed: 11/25/2022]
Abstract
Senescence reduces the circulating number and angiogenic activity of endothelial progenitor cells (EPCs), and is associated with aging-related vascular diseases. However, it is very time-consuming to obtain aged cells (~1 month of repeated replication) or animals (~2 years) for senescence studies. Here, we established an accelerated senescence model by treating EPCs with deferoxamine (DFO), an FDA-approved iron chelator. Four days of low-dose (3 μM) DFO induced senescent phenotypes in EPCs, including a senescent pattern of protein expression, impaired mitochondrial bioenergetics, altered mitochondrial protein levels and compromised angiogenic activity. DFO-treated early EPCs from young and old donors (< 35 vs. > 70 years old) displayed similar senescent phenotypes, including elevated senescence-associated β-galactosidase activity and reduced relative telomere lengths, colony-forming units and adenosine triphosphate levels. To validate this accelerated senescence model in vivo, we intraperitoneally injected Sprague-Dawley rats with DFO for 4 weeks. Early EPCs from DFO-treated rats displayed profoundly senescent phenotypes compared to those from control rats. Additionally, in hind-limb ischemic mice, DFO pretreatment compromised EPC angiogenesis by reducing both blood perfusion and capillary density. DFO thus accelerates EPC senescence and appears to hasten model development for cellular senescence studies.
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Affiliation(s)
- Yi-Nan Lee
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan
| | - Hsueh-Hsiao Wang
- Department of Medicine, MacKay Medical College, New Taipei 25245, Taiwan
| | - Cheng-Huang Su
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medicine, MacKay Medical College, New Taipei 25245, Taiwan
| | - Hsin-I Lee
- Department of Medicine, MacKay Medical College, New Taipei 25245, Taiwan
| | - Yen-Hung Chou
- Department of Medicine, MacKay Medical College, New Taipei 25245, Taiwan.,Institute of Biomedical Sciences, MacKay Medical College, New Taipei 25245, Taiwan
| | - Chin-Ling Hsieh
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan
| | - Wen-Ting Liu
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan
| | - Kuo-Tung Shu
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan
| | - Kai-Ting Chang
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan
| | - Hung-I Yeh
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medicine, MacKay Medical College, New Taipei 25245, Taiwan
| | - Yih-Jer Wu
- Cardiovascular Center, Department of Internal Medicine, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medical Research, MacKay Memorial Hospital, Taipei 10449, Taiwan.,Department of Medicine, MacKay Medical College, New Taipei 25245, Taiwan.,Institute of Biomedical Sciences, MacKay Medical College, New Taipei 25245, Taiwan
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