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Generation of tooth-like structures from integration-free human urine induced pluripotent stem cells

Cell Regeneration 2013年第1期2卷 42-49页

作者： Jinglei Cai Yanmei Zhang Pengfei Liu Shubin Chen Xuan Wu Yuhua Sun Ang Li Ke Huang Rongping Luo Lihui Wang Ying Liu Ting Zhou Shicheng Wei Guangjin Pan Duanqing Pei CAS Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cell Biology and Regenerative Medicine South China Institute for Stem Cell Biology and Regenerative MedicineGuangzhou Institute of Biomedicine and HealthChinese Academy of Sciences190 Kai Yuan AvenueScience ParkGuangzhou 510530P.R.China Department of Regeneration Medicine School of PharmaceuticalJilin UniversityChangchunP.R.China Department of Oral and Maxillofacial Surgery Laboratory of Interdisciplinary StudiesSchool and Hospital of StomatologyPeking UniversityBeijingP.R.China Biodynamic Optical Imaging Center(BIOPIC) Peking UniversityBeijingP.R.China The Shenzhen Key Lab of Gene and Antibody Therapy Center for Biotech&Biomedicine and Division of Life SciencesGraduate School at ShenzhenTsinghua UniversityShenzhenP.R.China Center for Biomedical Materials and Tissue Engineering Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijingP.R.China.

Background:tooth is vital not only for a good smile,but also good ***,we lose tooth regularly due to accidents or *** ideal solution to this problem is to regenerate tooth with patients’own *** we describe the generation of tooth-like structures from integration-free human urine induced pluripotent stem cells(ifhU-iPSCs).Results:We first differentiated ifhU-iPSCs to epithelial sheets,which were then recombined with E14.5 mouse dental ***-like structures were recovered from these recombinants in 3 weeks with success rate up to 30%for 8 different iPSC lines,comparable to H1 *** further detected that ifhU-iPSC derived epithelial sheets differentiated into enamel-secreting ameloblasts in the tooth-like structures,possessing physical properties such as elastic modulus and hardness found in the regular human ***:Our results demonstrate that ifhU-iPSCs can be used to regenerate patient specific dental tissues or even tooth for further drug screening or regenerative therapies.

关键词： Human urine Integration-free iPSCs recombinant tooth Bioengineered tooth Dental epithelium

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