2. Academic Validation
  3. Inhibition of MTA2 and MTA3 induces mesendoderm specification of human embryonic stem cells

Inhibition of MTA2 and MTA3 induces mesendoderm specification of human embryonic stem cells

  • Biochem Biophys Res Commun. 2021 May 7;552:142-149. doi: 10.1016/j.bbrc.2021.03.030.
Yu You 1,  Yandi Cui 1,  Yuting Li 1,  Meng Zhang 1,  Xin Wang 1,  Junxiang Ji 1,  Xinbao Zhang 1,  Min Zhou 2,  Zhonglin Zhang 1,  Shou-Dong Ye 3,  Xiaoxiao Wang 4
Affiliations

Affiliations

  • 1 Center for Stem Cell and Translational Medicine, School of Life Sciences, Anhui University, Hefei, 230601, PR China.
  • 2 Anhui Provincial Hospital, First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China.
  • 3 Center for Stem Cell and Translational Medicine, School of Life Sciences, Anhui University, Hefei, 230601, PR China; Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, PR China. Electronic address: [email protected].
  • 4 Anhui Provincial Hospital, First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China. Electronic address: [email protected].
PMID: 33744762 DOI: 10.1016/j.bbrc.2021.03.030
Abstract

Fully understanding the regulatory network under the pluripotency of embryonic stem cells (ESC) is a prerequisite for their safe application. Here, we addressed the characteristics of metastasis-associated (MTA) family members in human ESCs and found that knockdown of the expression of MTA2 and MTA3, but not MTA1, would induce differentiation. High-throughput sequence and quantitative Real-Time PCR showed that the decreased MTA2 or MTA3 gene transcript mainly led to the emergence of mesendoderm associated markers. Finally, based on the chemical small molecule library screening, we observed that addition of ID8, a specific inhibitor of the dual-specificity tyrosine phosphorylation-regulated kinases (DYRKs), was able to impair the differentiation phenotype induced by MTA2 and MTA3 reduction. Functional assay showed that ID8 could mediate differentiation caused by MTA2 or MTA3 knockdown mainly through inhibition of DYRK4 activity. Therefore, our finding provides the evidence that the functions of MTA family genes in human ESCs are different. Revealing the function of MTA in ESCs with different pluripotency states will help us better understand and apply stem cells.

Keywords

DYRK; Endoderm; Human embryonic stem cells; ID8; MTA; Mesoderm.

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