期刊
JOURNAL OF THE CHINESE MEDICAL ASSOCIATION
卷 77, 期 12, 页码 618-625出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1016/j.jcma.2014.08.009
关键词
dental pulp; differentiation; inducible pluripotent stem cells; neural cell
资金
- National Science Council [NSC 102-2314-B-010]
- Taipei Veterans General Hospital [V102C-085]
- Yen-Tjing-Ling Medical Foundation [CI-102-12]
- Grants-in-Aid for Scientific Research [17K11925] Funding Source: KAKEN
Background: A recent research breakthrough has demonstrated that the ectopic expression of four genes is sufficient to reprogram human fibroblasts into inducible pluripotent stem cells (iPSCs). However, whether human dental pulp cells (DPCs) could be reprogrammed into iPSCs remains an open question. In this study, we demonstrated that DPCs from deciduous and permanent teeth can be reprogrammed into iPSCs without c-Myc and had the capacity to differentiate into neuron-like cells. Methods: DPCs were obtained from donors and reprogrammed into iPSCs using retroviral transduction with SOX2, OCT4, and KLF4. Then, these iPSCs were differentiated into neuron-like cells. Microarray and bioinformatics were used to compare the gene expression profile among these iPSCs and iPSC-derived neuron-like cells. Results: The DPCs displayed a high vitality and capability to quickly restart proliferation and expressed elevated pluripotency similar to mesenchymal stem cells. According to our results, DPC-derived iPSC colonies that could be subcultured and propagated were established as early as 10 days after transduction, in comparison with the skin fibroblast (DPC-derived iPSCs) without c-Myc presented embryonic stem cell-like properties and the pluripotent potential to differentiate into neuron-like cells, which resemble neurons both morphologically and functionally. Conclusion: The human DPCs from deciduous and permanent teeth can undergo reprogramming to establish pluripotent stem cell lines without c-Myc. These surgical residues, usually regarded as medical waste, can be used as an alternative source of pluripotent stem cells for personalized medicine. Copyright (C) 2014 Elsevier Taiwan LLC and the Chinese Medical Association. All rights reserved.
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