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The adaptation of bovine embryonic stem cells to the changes of feeder layers

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Abstract

Although the feeder-free culture system has been established, the microenvironment provided by the feeder cells still possesses a unique advantage in maintaining the long-term stability and the rapid proliferation of pluripotent stem cells (PSCs). The aim of this study is to discover the adaptive ability of PSCs upon changes of feeder layers. In this study, the morphology, pluripotent marker expression, differentiation ability of bovine embryonic stem cells (bESCs) cultured on low-density, or methanol fixed mouse embryonic fibroblasts were examined by immunofluorescent staining, Western blotting, real-time reverse transcription polymerase chain reaction, and RNA-seq. The results showed that the changes of feeder layers did not induce the rapid differentiation of bESCs, while resulting in the differentiation initiation and alteration of pluripotent state of bESCs. More importantly, the expression of endogenous growth factors and extracellular matrix were increased, and the expression of cell adhesion molecules was altered, which indicated that bESCs may compensate some functions of the feeder layers upon its changes. This study shows the PSCs have the self-adaptive ability responded to the feeder layer alteration.

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Data availability

All data generated or analyzed during this study are included in this published article and its Supplementary Information files. Gene expression data of MC-F7 and 1/7MC-F7 or MC-F7 and MT-F7 are available in the GEO databases under the accession number GSE213631 or GSE199731.

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Funding

This work was financially supported by the Science and Technology Major Project of the Inner Mongolia Autonomous Region of China (2020ZD0007), the National Natural Science Foundation of China (32160172), the Science Research Foundation of Baotou Medical College (BYJJ-ZRQM202215), the Major Program of the Inner Mongolia Natural Science Foundation (2020ZD10), the National Transgenic Project (2016ZX0801000-002 and 2016ZX08010005-001), and the Science and Technology Major Project of the Inner Mongolia Autonomous Region of China to the State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (zdzx2018065 and 2021ZD0048).

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Contributions

Xueling Li and Yongli Yue designed the project and reviewed this paper. Wenqiang Xu, Lingna Gao, and Wei Li conducted the experiments; Wenqiang Xu analyzed the results and wrote the manuscript. The bioinformatics analyses of RNA-seq were conducted by Jing Wang.

Corresponding authors

Correspondence to Yongli Yue or Xueling Li.

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The authors declare no competing interests.

Supplementary Information

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Supplementary file1 (DOCX 1439 KB)

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Xu, W., Gao, L., Li, W. et al. The adaptation of bovine embryonic stem cells to the changes of feeder layers. In Vitro Cell.Dev.Biol.-Animal 59, 85–99 (2023). https://doi.org/10.1007/s11626-022-00731-5

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  • DOI: https://doi.org/10.1007/s11626-022-00731-5

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