Journal
JOURNAL OF CLINICAL MEDICINE
Volume 10, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/jcm10030454
Keywords
induced fibroblast-like (iF) cells; induced pluripotent stem (iPS) cells; induced tissue-specific stem (iTS) cells; reprogramming factors; pancreatic cancer; epithelial-mesenchymal transition (EMT)
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Funding
- JSPS KAKENHI [JP20H03745, JP19K09051]
- Okinawa Science and Technology Innovation System Construction Project
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This study found significant differences in the expression levels of key genes between iF cells and iTS-P cells in pancreatic tissue, suggesting that these differences could be important markers for distinguishing between these two cell types.
We previously reported that transient overexpression of reprogramming factors can be used to generate induced pluripotent stem (iPS) cells, induced tissue-specific stem (iTS) cells, and fibroblast-like (iF) cells from pancreatic tissue. iF cells have tumorigenic ability and behave similarly to pancreatic cancer cells. In this study, we analyzed gene expression in iF cells and iTS-P cells (iTS cells from pancreatic tissue) via microarray analysis and quantitative reverse transcription-polymerase chain reaction (qRT-PCR). The expression levels of the Mybl2 and Lyn genes, which are reported to be oncogenes, were significantly higher in iF cells than in iTS-P cells. The expression level of Nestin, which is expressed in not only pancreatic progenitor cells but also pancreatic ductal adenocarcinomas, was also higher in iF cells than in iTS-P cells. Itgb6 and Fgf13, which are involved in the pathogenesis of diseases such as cancer, exhibited higher expression levels in iF cells than in iTS-P cells. Unexpectedly, the expression levels of genes related to epithelial-mesenchymal transition (EMT), except Bmp4, were lower in iF cells than in iTS-P cells. These data suggest that the Mybl2, Lyn, Nestin, Itgb6, and Fgf13 genes could be important biomarkers to distinguish iTS-P cells from iF cells.
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