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| Content Provider | Springer Nature Link |
|---|---|
| Author | Li, Hanqing Zhou, Haiwen Fu, Xin Xiao, Ran |
| Copyright Year | 2016 |
| Abstract | Human embryonic stem cells (hESCs) can differentiate into all somatic lineages including stratified squamous epithelia. Thus, efficient methods are required to direct hESC differentiation to obtain a pure subpopulation for tissue engineering. The study aimed to assess the effects of retinoic acid (RA), bone morphogenetic protein-4 (BMP4), and ascorbic acid (AA) on the differentiation of hESCs into keratinocyte progenitors in vitro. The first media contained AA and BMP4; the second contained RA, AA, and BMP4; the third was commercial-defined keratinocyte serum-free medium, which was used to differentiate H9 hESCs (direct approach) or embryoid bodies (EBs) (indirect approach) into keratinocyte progenitors. Real-time RT-PCR, immunofluorescence, and flow-cytometry were used to characterize the differentiated cells. Cells induced by AA + BMP4 + RA showed the typical epithelial morphology, while cells induced by AA + BMP4 showed multiple appearances. CK14 and p63 messenger RNA (mRNA) expressions in the AA + BMP4 + RA-treated cells were higher than those of the AA + BMP4-treated cells (CK14: 22.4-fold; p63: 84.7-fold). Epithelial marker CK18 mRNA expressions at 14 d of differentiation and keratinocyte marker CK14 and transcription factor p63 mRNA expressions at 35 d of differentiation were higher in cells differentiated from hESCs compared with those differentiated from EBs (CK18 10.51 ± 3.26 vs. 6.67 ± 1.28; CK14 9.27 ± 3.61 vs. 5.32 ± 1.86; p63 0.73 ± 0.06 vs. 0.44 ± 0.12, all P < 0.05) After hESC induction by AA+BMP4+RA, CK14 mRNA expression was upregulated after day 21, peaking by 35 d of differentiation. Combined RA, BMP4, and AA could effectively induce differentiation of hESCs into keratinocyte progenitors in vitro. These keratinocytes could be used for oral mucosa and skin tissue engineering. |
| Starting Page | 885 |
| Ending Page | 893 |
| Page Count | 9 |
| File Format | |
| ISSN | 10712690 |
| Journal | In Vitro Cellular & Developmental Biology - Animal |
| Volume Number | 52 |
| Issue Number | 8 |
| e-ISSN | 1543706X |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2016-08-05 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Human embryonic stem cells Keratinocyte progenitors Differentiation Ascorbic acid Retinoic acid Bone morphogenetic protein-4 Cell Biology Developmental Biology Stem Cells Cell Culture Animal Genetics and Genomics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Developmental Biology Medicine |
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