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Characterization of dental pulp stem/stromal cells of Huntington monkey tooth germs

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Author(s): Snyder Brooke | Cheng Pei-Hsun | Yang Jinjing | Yang Shang-Hsun | Huang Anderson | Chan Anthony

Journal: BMC Cell Biology
ISSN 1471-2121

Volume: 12;
Issue: 1;
Start page: 39;
Date: 2011;
Original page

Keywords: Adult stem cells | animal model | DPSCs | Huntington's disease | transgenic HD monkeys | cell therapy

ABSTRACT
Abstract Background Dental pulp stem/stromal cells (DPSCs) are categorized as adult stem cells (ASCs) that retain multipotent differentiation capabilities. DPSCs can be isolated from individuals at any age and are considered to be true personal stem cells, making DPSCs one of the potential options for stem cell therapy. However, the properties of DPSCs from individuals with an inherited genetic disorder, such as Huntington's disease (HD), have not been fully investigated. Results To examine if mutant huntingtin (htt) protein impacts DPSC properties, we have established DPSCs from tooth germ of transgenic monkeys that expressed both mutant htt and green fluorescent protein (GFP) genes (rHD/G-DPSCs), and from a monkey that expressed only the GFP gene (rG-DPSCs), which served as a control. Although mutant htt and oligomeric htt aggregates were overtly present in rHD/G-DPSCs, all rHD/G-DPSCs and rG-DPSCs shared similar characteristics, including self-renewal, multipotent differentiation capabilities, expression of stemness and differentiation markers, and cell surface antigen profile. Conclusions Our results suggest that DPSCs from Huntington monkeys retain ASC properties. Thus DPSCs derived from individuals with genetic disorders such as HD could be a potential source of personal stem cells for therapeutic purposes.
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Tango Jona
Tangokurs Rapperswil-Jona