Oncotarget

Research Papers:

EIF2S3Y suppresses the pluripotency state and promotes the proliferation of mouse embryonic stem cells

Na Li, Hailong Mu, Liming Zheng, Bo Li, Chongyang Wu, Bowen Niu, Qiaoyan Shen, Xin He and Jinlian Hua _

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Oncotarget. 2016; 7:11321-11331. https://doi.org/10.18632/oncotarget.7187

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Abstract

Na Li1, Hailong Mu1, Liming Zheng1, Bo Li1, Chongyang Wu1, Bowen Niu1, Qiaoyan Shen1, Xin He1, Jinlian Hua1

1College of Veterinary Medicine, Shaanxi Center of Stem Cells Engineering and Technology, Northwest A & F University, Yangling, Shaanxi, China

Correspondence to:

Jinlian Hua, e-mail: [email protected]

Keywords: EIF2S3Y, embryonic stem cells, pluripotency, proliferation, mouse

Received: October 08, 2015     Accepted: January 23, 2016     Published: February 04, 2016

ABSTRACT

Eukaryotic translation initiation factor 2, subunit 3, and structural gene Y-linked (EIF2S3Y) is essential for spermatogenesis in mouse models. However, its effect on embryonic stem (ES) cells remains unknown. In our observation, differentiated ES cells showed higher levels of EIF2S3Y. To further elucidate its role in ES cells, we utilized ES-derived EIF2S3Y-overexpressing cells and found that EIF2S3Y down-regulated the pluripotency state of ES cells, which might be explained by decreased histone methylation levels because of reduced levels of ten-eleven translocation 1 (TET1). Moreover, EIF2S3Y-overexpressing cells showed an enhanced proliferation rate, which might be due to increased Cyclin A and Cyclin E levels. This study highlighted novel roles of EIF2S3Y in the pluripotency maintenance and proliferation control of ES cells, which would provide an efficient model to study germ cell generation as well as cancer development using ES cells, thus providing valuable target for clinical applications of ES cells.


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