Creating Germline-Competent Rat Induced Pluripotent Stem Cells
Author Information
Author(s): Hamanaka Sanae, Yamaguchi Tomoyuki, Kobayashi Toshihiro, Kato-Itoh Megumi, Yamazaki Satoshi, Sato Hideyuki, Umino Ayumi, Wakiyama Yukiko, Arai Mami, Sanbo Makoto, Hirabayashi Masumi, Nakauchi Hiromitsu
Primary Institution: Institute of Medical Science, University of Tokyo
Hypothesis
Can rat induced pluripotent stem cells (riPSCs) contribute to germline transmission?
Conclusion
The study demonstrates that rat somatic cells can be reprogrammed into germline-competent induced pluripotent stem cells using only three reprogramming factors.
Supporting Evidence
- Rat iPSCs can contribute to germline transmission in both rat-rat and mouse-rat chimeras.
- riPSCs were shown to express pluripotency markers and could differentiate into all three germ layers.
- No tumors were observed in chimeric rats or their progeny during the study.
Takeaway
Scientists figured out how to turn rat cells into special cells that can make baby rats, just like how some cells in embryos work.
Methodology
Rat embryonic fibroblasts were infected with a lentiviral vector carrying three mouse reprogramming factors and cultured with specific inhibitors to generate riPSCs.
Limitations
The study did not explore all possible combinations of iPSC strains and blastocyst strains for germline transmission efficiency.
Participant Demographics
Wistar and Dark Agouti rat embryonic fibroblasts were used.
Digital Object Identifier (DOI)
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