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KMID : 1189320170110060870
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Asian Spine Journal
2017 Volume.11 No. 6 p.870 ~ p.879
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Generation of Induced Pluripotent Stem Cells and Neural Stem/Progenitor Cells from Newborns with Spina Bifida Aperta
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Bamba Yohei
Nonaka Masahiro
Sasaki Natsu
Shofuda Tomoko
Kanematsu Daisuke
Suemizu Hiroshi
Higuchi Yuichiro
Pooh Ritsuko K.
Kanemura Yonehiro
Okano Hideyuki
Yamasaki Mami
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Abstract
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Study Design: We established induced pluripotent stem cells (iPSCs) and neural stem/progenitor cells (NSPCs) from three newborns with spina bifida aperta (SBa) using clinically practical methods.
Purpose: We aimed to develop stem cell lines derived from newborns with SBa for future therapeutic use.
Overview of Literature: SBa is a common congenital spinal cord abnormality that causes defects in neurological and urological functions. Stem cell transplantation therapies are predicted to provide beneficial effects for patients with SBa. However, the availability of appropriate cell sources is inadequate for clinical use because of their limited accessibility and expandability, as well as ethical issues.
Methods: Fibroblast cultures were established from small fragments of skin obtained from newborns with SBa during SBa repair surgery. The cultured cells were transfected with episomal plasmid vectors encoding reprogramming factors necessary for generating iPSCs. These cells were then differentiated into NSPCs by chemical compound treatment, and NSPCs were expanded using neurosphere technology.
Results: We successfully generated iPSC lines from the neonatal dermal fibroblasts of three newborns with SBa. We confirmed that these lines exhibited the characteristics of human pluripotent stem cells. We successfully generated NSPCs from all SBa newborn-derived iPSCs with a combination of neural induction and neurosphere technology.
Conclusions: We successfully generated iPSCs and iPSC-NSPCs from surgical samples obtained from newborns with SBa with the goal of future clinical use in patients with SBa.
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KEYWORD
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Myelomeningocele, Spina bifida, Induced pluripotent stem cells, Neural stem/progenitor cells, Regenerative medicine
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