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Bolli RAR, Arshia A, Hassan SA, Dasari C, Nong Y, Guo Y, Tomlin AA, Li Q. Cardiac Mesenchymal Cells Cultured at Physiologic Oxygen Tension Have Superior Therapeutic Efficacy in Heart Failure Caused by Myocardial Infarction. Front Cell Dev Biol 2021; 9:662415. [PMID: 34124043 PMCID: PMC8189180 DOI: 10.3389/fcell.2021.662415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/22/2021] [Indexed: 12/03/2022] Open
Abstract
Stem/progenitor cells are usually cultured at atmospheric O2 tension (21%); however, since physiologic O2 tension in the heart is ∼5%, using 21% O2 may cause oxidative stress and toxicity. Cardiac mesenchymal cells (CMCs), a newly discovered and promising type of progenitor cells, are effective in improving left ventricle (LV) function after myocardial infarction (MI). We have previously shown that, compared with 21% O2, culture at 5% O2 increases CMC proliferation, telomerase activity, telomere length, and resistance to severe hypoxia in vitro. However, it is unknown whether these beneficial effects of 5% O2in vitro translate into greater therapeutic efficacy in vivo in the treatment of heart failure. Thus, murine CMCs were cultured at 21% or 5% O2. Mice with heart failure caused by a 60-min coronary occlusion followed by 30 days of reperfusion received vehicle, 21% or 5% O2 CMCs via echocardiography-guided intraventricular injection. After 35 days, the improvement in LV ejection fraction effected by 5% O2 CMCs was > 3 times greater than that afforded by 21% O2 CMCs (5.2 vs. 1.5 units, P < 0.01). Hemodynamic studies (Millar catheter) yielded similar results both for load-dependent (LV dP/dt) and load-independent (end-systolic elastance) indices. Thus, two independent approaches (echo and hemodynamics) demonstrated the therapeutic superiority of 5% O2 CMCs. Further, 5% O2 CMCs, but not 21% O2 CMCs, significantly decreased scar size, increased viable myocardium, reduced LV hypertrophy and dilatation, and limited myocardial fibrosis both in the risk and non-infarcted regions. Taken together, these results show, for the first time, that culturing CMCs at physiologic (5%) O2 tension provides superior therapeutic efficacy in promoting cardiac repair in vivo. This concept may enhance the therapeutic potential of CMCs. Further, culture at 5% O2 enables greater numbers of cells to be produced in a shorter time, thereby reducing costs and effort and limiting cell senescence. Thus, the present study has potentially vast implications for the field of cell therapy.
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Affiliation(s)
- Robi A R Bolli
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
| | - Asma Arshia
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
| | - Syed A Hassan
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
| | - Chandrashekhar Dasari
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
| | - Yibing Nong
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
| | - Yiru Guo
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
| | - Alex A Tomlin
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
| | - Qianhong Li
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, United States
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Dergilev KV, Vasilets ID, Tsokolaeva ZI, Zubkova ES, Parfenova EV. [Perspectives of cell therapy for myocardial infarction and heart failure based on cardiosphere cells]. TERAPEVT ARKH 2020; 92:111-120. [PMID: 32598708 DOI: 10.26442/00403660.2020.04.000634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Indexed: 12/13/2022]
Abstract
Cardiovascular diseases are the leading cause of morbidity and mortality worldwide. In recent years, researchers are attracted to the use of cell therapy based on stem cell and progenitor cells, which has been a promising strategy for cardiac repair after injury. However, conducted research using intracoronary or intramyocardial transplantation of various types of stem/progenitor cells as a cell suspension showed modest efficiency. This is due to the low degree of integration and cell survival after transplantation. To overcome these limitations, the concept of the use of multicellular spheroids modeling the natural microenvironment of cells has been proposed, which allows maintaining their viability and therapeutic properties. It is of great interest to use so-called cardial spheroids (cardiospheres) spontaneously forming three-dimensional structures under low-adhesive conditions, consisting of a heterogeneous population of myocardial progenitor cells and extracellular matrix proteins. This review presents data on methods for creating cardiospheres, directed regulation of their properties and reparative potential, as well as the results of preclinical and clinical studies on their use for the treatment of heart diseases.
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Affiliation(s)
| | | | - Z I Tsokolaeva
- National Medical Research Center for Cardiology.,Negovsky Scientific Research Institute of General Reanimatology of the Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology
| | - E S Zubkova
- National Medical Research Center for Cardiology
| | - E V Parfenova
- National Medical Research Center for Cardiology.,Lomonosov Moscow State University
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