Hair-Follicle-Associated Pluripotent (HAP) Stem Cells Can Extensively Differentiate to Tyrosine-Hydroxylase-Expressing Dopamine-Secreting Neurons

Author:

Yamane Michiko,Takaoka Nanako,Obara Koya,Shirai Kyoumi,Aki Ryoichi,Hamada Yuko,Arakawa Nobuko,Hoffman Robert M.,Amoh Yasuyuki

Abstract

Hair-follicle-associated pluripotent (HAP) stem cells are located in the bulge area of hair follicles from mice and humans and have been shown to differentiate to neurons, glia, keratinocytes, smooth muscle cells, melanocytes and beating cardiac muscle cells in vitro. Subsequently, we demonstrated that HAP stem cells could effect nerve and spinal-cord regeneration in mouse models, differentiating to Schwann cells and neurons in this process. HAP stem cells can be banked by cryopreservation and preserve their ability to differentiate. In the present study, we demonstrated that mouse HAP stem cells cultured in neural-induction medium can extensively differentiate to dopaminergic neurons, which express tyrosine hydroxylase and secrete dopamine. These results indicate that the dopaminergic neurons differentiated from HAP stem cells may be useful in the future to improve the symptoms of Parkinson’s disease in the clinic.

Funder

Ministry of Education and Science

Terumo Foundation for Life Sciences and Arts

Publisher

MDPI AG

Subject

General Medicine

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