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. 2024 Oct:514:28-36.
doi: 10.1016/j.ydbio.2024.06.003. Epub 2024 Jun 14.

Dzip1 is dynamically expressed in the vertebrate germline and regulates the development of Xenopus primordial germ cells

Aurora Turgeon  1 , Jia Fu  1 , Divyanshi  2 , Meng Ma  1 , Zhigang Jin  1 , Hyojeong Hwang  3 , Meining Li  1 , Huanyu Qiao  1 , Wenyan Mei  1 , Jing Yang  4
Affiliations

Dzip1 is dynamically expressed in the vertebrate germline and regulates the development of Xenopus primordial germ cells

Aurora Turgeon et al. Dev Biol. 2024 Oct.

Abstract

Primordial germ cells (PGCs) are the precursors of sperms and oocytes. Proper development of PGCs is crucial for the survival of the species. In many organisms, factors responsible for PGC development are synthesized during early oogenesis and assembled into the germ plasm. During early embryonic development, germ plasm is inherited by a few cells, leading to the formation of PGCs. While germline development has been extensively studied, how components of the germ plasm regulate PGC development is not fully understood. Here, we report that Dzip1 is dynamically expressed in vertebrate germline and is a novel component of the germ plasm in Xenopus and zebrafish. Knockdown of Dzip1 impairs PGC development in Xenopus embryos. At the molecular level, Dzip1 physically interacts with Dazl, an evolutionarily conserved RNA-binding protein that plays a multifaced role during germline development. We further showed that the sequence between amino acid residues 282 and 550 of Dzip1 is responsible for binding to Dazl. Disruption of the binding between Dzip1 and Dazl leads to defective PGC development. Taken together, our results presented here demonstrate that Dzip1 is dynamically expressed in the vertebrate germline and plays a novel function during Xenopus PGC development.

Keywords: Dazl; Dzip1; Germ plasm; Germline development; Primordial germ cell; Xenopus.

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Conflict of interest statement

Declaration of competing interest The authors declare no competing interests.

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