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Strategies to Enhance Implantation and Survival of Stem Cells After Their Injection in Ischemic Neural Tissue
- Sandvig, Ioanna (author)
- Gadjanski, Ivana (author)
- Vlaski-Lafarge, Marija (author)
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- Buzanska, Leonora (author)
- Loncaric, Darija (author)
- Sarnowska, Ana (author)
- Rodriguez, Laura (author)
- Ivanovic, Zoran (author)
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- (creator_code:org_t)
- Mary Ann Liebert, 2017
- 2017
- English.
- In: Stem Cells and Development. - : Mary Ann Liebert. - 1547-3287 .- 1557-8534. ; 26:8, s. 554-565
- Journal article (peer-reviewed)
Abstract
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- High post-transplantation cell mortality is the main limitation of various approaches that are aimed at improving regeneration of injured neural tissue by an injection of neural stem cells (NSCs) and mesenchymal stromal cells (MStroCs) in and/or around the lesion. Therefore, it is of paramount importance to identify efficient ways to increase cell transplant viability. We have previously proposed the "evolutionary stem cell paradigm," which explains the association between stem cell anaerobic/microaerophilic metabolic set-up and stem cell self-renewal and inhibition of differentiation. Applying these principles, we have identified the main critical point in the collection and preparation of these cells for experimental therapy: exposure of the cells to atmospheric O2, that is, to oxygen concentrations that are several times higher than the physiologically relevant ones. In this way, the primitive anaerobic cells become either inactivated or adapted, through commitment and differentiation, to highly aerobic conditions (20%-21% O2 in atmospheric air). This inadvertently compromises the cells' survival once they are transplanted into normal tissue, especially in the hypoxic/anoxic/ischemic environment, which is typical of central nervous system (CNS) lesions. In addition to the findings suggesting that stem cells can shift to glycolysis and can proliferate in anoxia, recent studies also propose that stem cells may be able to proliferate in completely anaerobic or ischemic conditions by relying on anaerobic mitochondrial respiration. In this systematic review, we propose strategies to enhance the survival of NSCs and MStroCs that are implanted in hypoxic/ischemic neural tissue by harnessing their anaerobic nature and maintaining as well as enhancing their anaerobic properties via appropriate ex vivo conditioning.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Keyword
- anaerobiosis
- hypoxia
- ischemia
- neural regeneration
- stem cells
- stroke
- Neurology
- neurologi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Sarnowska, Ana
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- Rodriguez, Laura
- Sandvig, Axel
- Ivanovic, Zoran
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