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NANOS3 downregulation in Down syndrome hiPSCs during primordial germ cell-like cell differentiation

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Abstract

Human infertility is a complex disorder at the genetic, molecular, cellular, organ, and hormonal levels. New developing technology based on the generation of human primordial germ cell-like cells (hPGCLCs) from induced pluripotent stem cells (hiPSCs) might improve understanding of early germ cell development (specification, migration, gametogenesis, and epigenetic reconstitutions), as well as offering a solution for infertility and hereditary disorders. In this study, we differentiated hiPSCs with trisomy 21 into hPGCLCs. In vitro-derived germ cells from hiPSCs with Down syndrome (DS) express hPGCLC core circuitry, EOMES, SOX17, and PRDM14 at relatively low levels. TFAP2C and PRDM1 were expressed and remained elevated, whereas NANOS3 and NANOG were downregulated in BMP4-induced hiPSCs with DS. The low level of NANOG and NANOS3 expression might negatively influence hPGCLC generation in DS hiPSCs. We suggest that DS hPGCLCs could be a suitable model for studying human early germ cell development, the epigenetic and molecular mechanisms of PGC specification and formation, as well as related infertility disorders, such as azoospermia and teratozoospermia.

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Acknowledgements

We thank MBiol student Nelli Arakelyan for her helpful contribution in running gel electrophoresis.

Funding

The work was performed according to the IDB RAS No. 0088-2021-0016 Government basic research program. The research on gene expression analysis was supported by grant no. 075-15-2019-1789 from the Ministry of Science and Higher Education of the Russian Federation, allocated to the Center for Precision Genome Editing and Genetic Technologies for Biomedicine. Also, we thank the Core Centrum of the Institute of Developmental Biology RAS for the opportunity to work on the equipment of the center.

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V.K.A.: investigation, writing the original draft, conceptualization. N.O.D.: formal analysis, validation. E.B.D.: conceptualization. E.A.V.: supervision, editing the manuscript. A.V.V.: supervision, editing the manuscript, funding acquisition.

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Correspondence to V. K. Abdyyev.

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The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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Abdyyev, V.K., Dashenkova, N.O., Dashinimaev, E.B. et al. NANOS3 downregulation in Down syndrome hiPSCs during primordial germ cell-like cell differentiation. Histochem Cell Biol 157, 83–91 (2022). https://doi.org/10.1007/s00418-021-02040-6

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  • DOI: https://doi.org/10.1007/s00418-021-02040-6

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