Comparison of Teratoma Formation between Embryonic Stem Cells and Parthenogenetic Embryonic Stem Cells by Molecular Imaging

Stem Cells International
Hongyan TaoZongjin Li

Abstract

With their properties of self-renewal and differentiation, embryonic stem (ES) cells hold great promises for regenerative therapy. However, teratoma formation and ethical concerns of ES cells may restrict their potential clinical applications. Currently, parthenogenetic embryonic stem (pES) cells have attracted the interest of researchers for its self-renewing and pluripotent differentiation while eliciting less ethic concerns. In this study, we established a model with ES and pES cells both stably transfected with a double-fusion reporter gene containing renilla luciferase (Rluc) and red fluorescent protein (RFP) to analyze the mechanisms of teratoma formation. Transgenic Vegfr2-luc mouse, which expresses firefly luciferase (Fluc) under the promoter of vascular endothelial growth factor receptor 2 (Vegfr2-luc), was used to trace the growth of new blood vessel recruited by transplanted cells. Bioluminescence imaging (BLI) of Rluc/Fluc provides an effective tool in estimating the growth and angiogenesis of teratoma in vivo. We found that the tumorigenesis and angiogenesis capacity of ES cells were higher than those of pES cells, in which VEGF/VEGFR2 signal pathway plays an important role. In conclusion, pES cells have the decrea...Continue Reading

References

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Citations

Jul 29, 2018·Stem Cell Research & Therapy·Haissam Abou-SalehAli H Eid
May 12, 2020·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Christopher D RocheCarmine Gentile
Sep 26, 2020·Translational Stroke Research·Meng LuSeyed Esmaeil Khoshnam
Aug 14, 2020·International Journal of Molecular Sciences·Paula ChlebanowskaMarcin Majka
Dec 31, 2020·Biomedicines·Intan Rosalina SuhitoTae-Hyung Kim
May 11, 2021·Frontiers in Cell and Developmental Biology·Chuanbin LiuFeng Cao

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Methods Mentioned

BETA
transgenic
fluorescence microscopy
transfection
imaging techniques
PCR

Software Mentioned

GraphPad
Graphpad Prism

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