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McClenahan F, Dimitriou C, Koutsakis C, Dimitrakopoulos D, Arampatzis A, Kakouri P, Kourla M, Oikonomou S, Andreopoulou E, Patsonis M, Meri DK, Rasool RT, Franklin RJ, Kazanis I. Isolation of neural stem and oligodendrocyte progenitor cells from the brain of live rats. Stem Cell Reports 2021; 16:2534-2547. [PMID: 34560001 PMCID: PMC8514974 DOI: 10.1016/j.stemcr.2021.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 11/09/2022] Open
Abstract
Postnatal brain neural stem and progenitor cells (NSPCs) cluster in anatomically inaccessible stem cell niches, such as the subependymal zone (SEZ). Here, we describe a method for the isolation of NSPCs from live animals, which we term “milking.” The intracerebroventricular injection of a release cocktail, containing neuraminidase, integrin-β1-blocking antibody, and fibroblast growth factor 2, induces the controlled flow of NSPCs in the cerebrospinal fluid, where they are collected via liquid biopsies. Isolated cells retain key in vivo self-renewal properties and their cell-type profile reflects the cell composition of their source area, while the function of the niche is sustained even 8 months post-milking. By changing the target area more caudally, we also isolate oligodendrocyte progenitor cells (OPCs) from the corpus callosum. This novel approach for sampling NSPCs and OPCs paves the way for performing longitudinal studies in experimental animals, for more in vivo relevant cell culture assays, and for future clinical neuro-regenerative applications. Isolation of brain neural stem and oligodendrocyte progenitor cells from live rats Cells are induced to flow from their niche into the cerebrospinal fluid Neurogenesis persists despite long-term ependymal damage/loss Collected cells retain the properties of endogenous neural stem/progenitor cells
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Affiliation(s)
- Freyja McClenahan
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, CB2 0AW Cambridge, UK
| | - Christina Dimitriou
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Christos Koutsakis
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | | | - Asterios Arampatzis
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, CB2 0AW Cambridge, UK
| | - Paraskevi Kakouri
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Michaela Kourla
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Sofia Oikonomou
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Evangelia Andreopoulou
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Melina Patsonis
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Danai-Kassandra Meri
- Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece
| | - Rana-Tahir Rasool
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, CB2 0AW Cambridge, UK
| | - Robin Jm Franklin
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, CB2 0AW Cambridge, UK
| | - Ilias Kazanis
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, CB2 0AW Cambridge, UK; Lab of Developmental Biology, Department of Biology, University of Patras, 26504 Patras, Greece.
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