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Survival, migration, and differentiation of Sox1-GFP embryonic stem cells in coculture with an auditory brainstem slice preparation
Karolinska University Hospital, Stockholm, Sweden.
Karolinska University Hospital, Stockholm, Sweden.
Karolinska University Hospital, Stockholm, Sweden.
Karolinska University Hospital, Stockholm, Sweden.
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2008 (English)In: Cloning and Stem Cells, ISSN 1536-2302, E-ISSN 1557-7457, Vol. 10, no 1, 75-87 p.Article in journal (Refereed) Published
Abstract [en]

The poor regeneration capability of the mammalian hearing organ has initiated different approaches to enhance its functionality after injury. To evaluate a potential neuronal repair paradigm in the inner ear and cochlear nerve we have previously used embryonic neuronal tissue and stem cells for implantation in vivo and in vitro. At present, we have used in vitro techniques to study the survival and differentiation of Sox1-green fluorescent protein (GFP) mouse embryonic stem (ES) cells as a monoculture or as a coculture with rat auditory brainstem slices. For the coculture, 300 mu m-thick brainstem slices encompassing the cochlear nucleus and cochlear nerve were prepared from postnatal SD rats. The. slices were propagated using the membrane interface method and the cochlear nuclei were prelabeled with DiI. After some days in culture a suspension of Sox1 cells was deposited next to the brainstem slice. Following. deposition Sox1 cells migrated toward the brainstem and onto the cochlear nucleus. GFP was not detectable in undifferentiated ES cells but became evident during neural differentiation.. Up to 2 weeks after transplantation the cocultures were fixed. The undifferentiated cells were evaluated with antibodies against progenitor cells whereas the differentiated cells were determined with neuronal and glial markers. The morphological and immunohistochemical data indicated that Sox1 cells in monoculture differentiated into a higher percentage of glial cells than neurons. However, when a coculture was used a significantly lower percentage of Sox1 cells differentiated into glial cells. The results demonstrate that a coculture of Sox1 cells and auditory brainstem present a useful model to study stem cell differentiation.

Place, publisher, year, edition, pages
Mary Ann Liebert, 2008. Vol. 10, no 1, 75-87 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-101021DOI: 10.1089/clo.2007.0065ISI: 000254228000007PubMedID: 18241123OAI: oai:DiVA.org:liu-101021DiVA: diva2:665053
Available from: 2013-11-18 Created: 2013-11-18 Last updated: 2017-12-06Bibliographically approved

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Olivius, Petri

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