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Stem Cell Rev. 2017 Aug;13(4):532-541. doi: 10.1007/s12015-016-9704-2.

Identifying Candidate Reprogramming Genes in Mouse Induced Pluripotent Stem Cells.

Gao F1,2, Li J2,3, Zhang H2, Yang X2, An T4.

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College of Life Science, Northeast Forestry University, Harbin, China, 150040.
College of Life Science, Northeast Agricultural University, Harbin, China, 150030.
Chong Qing Reproductive and Genetics Institute, Chongqing Obstetrics and Gynecology Hospital, 64 Jing Tang ST, Yu Zhong District , Chongqing, China, 400013.
College of Life Science, Northeast Forestry University, Harbin, China, 150040.


Factor-based induced reprogramming approaches have tremendous potential for human regenerative medicine, but the efficiencies of these approaches are still low. In this study, we analyzed the global transcriptional profiles of mouse induced pluripotent stem cells (miPSCs) and mouse embryonic stem cells (mESCs) from seven different labs and present here the first successful clustering according to cell type, not by lab of origin. We identified 2131 different expression genes (DEs) as candidate pluripotency-associated genes by comparing mESCs/miPSCs with somatic cells and 720 DEs between miPSCs and mESCs. Interestingly, there was a significant overlap between the two DE sets. Therefore, we defined the overlap DEs as "consensus DEs" including 313 miPSC-specific genes expressed at a higher level in miPSCs versus mESCs and 184 mESC-specific genes in total and reasoned that these may contribute to the differences in pluripotency between mESCs and miPSCs. A classification of "consensus DEs" according to their different expression levels between somatic cells and mESCs/miPSCs shows that 86% of the miPSC-specific genes are more highly expressed in somatic cells, while 73% of mESC-specific genes are highly expressed in mESCs/miPSCs, indicating that the miPSCs have not efficiently silenced the expression pattern of the somatic cells from which they are derived and failed to completely induce the genes with high expression levels in mESCs. We further revealed a strong correlation between oocyte-enriched factors and insufficiently induced mESC-specific genes and identified 11 hub genes via network analysis. In light of these findings, we postulated that these key hub genes might not only drive somatic cell nuclear transfer (SCNT) reprogramming but also augment the efficiency and quality of miPSC reprogramming.


Mouse embryonic stem cells; Mouse induced pluripotent stem cells; Oocyte-enrich factors; Reprogramming; Transcriptome

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