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3. Implanted hair-follicle-associated pluripotent (HAP) stem cells encapsulated in polyvinylidene fluoride membrane cylinders promote effective recovery of peripheral nerve injury

Author

Yamazaki, Aiko, primary, Obara, Kohya, additional, Tohgi, Natsuko, additional, Shirai, Kyoumi, additional, Mii, Sumiyuki, additional, Hamada, Yuko, additional, Arakawa, Nobuko, additional, Aki, Ryoichi, additional, Hoffman, Robert M., additional, and Amoh, Yasuyuki, additional

Published
2017
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8. Isoproterenol directs hair follicle-associated pluripotent (HAP) stem cells to differentiate in vitro to cardiac muscle cells which can be induced to form beating heart-muscle tissue sheets

Author

Yamazaki, Aiko, primary, Yashiro, Masateru, additional, Mii, Sumiyuki, additional, Aki, Ryoichi, additional, Hamada, Yuko, additional, Arakawa, Nobuko, additional, Kawahara, Katsumasa, additional, Hoffman, Robert M., additional, and Amoh, Yasuyuki, additional

Published
2016
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10. Isoproterenol directs hair follicle-associated pluripotent (HAP) stem cells to differentiate in vitroto cardiac muscle cells which can be induced to form beating heart-muscle tissue sheets

Author

Yamazaki, Aiko, Yashiro, Masateru, Mii, Sumiyuki, Aki, Ryoichi, Hamada, Yuko, Arakawa, Nobuko, Kawahara, Katsumasa, Hoffman, Robert M., and Amoh, Yasuyuki

Abstract

ABSTRACTNestin-expressing hair-follicle-associated pluripotent (HAP) stem cells are located in the bulge area of the follicle. Previous studies have shown that HAP stem cells can differentiate to neurons, glia, keratinocytes, smooth muscle cells, and melanocytes in vitro. HAP stem cells effected nerve and spinal cord regeneration in mouse models. Recently, we demonstrated that HAP stem cells differentiated to beating cardiac muscle cells. The differentiation potential to cardiac muscle cells was greatest in the upper part of the follicle. The beat rate of the cardiac muscle cells was stimulated by isoproterenol. In the present study, we observed that isoproterenol directs HAP stem cells to differentiate to cardiac muscle cells in large numbers in culture compared to HAP stem cells not supplemented with isoproterenol. The addition of activin A, bone morphogenetic protein 4, and basic fibroblast growth factor, along with isoproternal, induced the cardiac muscle cells to form tissue sheets of beating heart muscle cells. These results demonstrate that HAP stem cells have great potential to form beating cardiac muscle cells in tissue sheets.

Published
2016
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