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Fertilization involves a specialized nuclear formation process distinct from that of somatic cells, and reconstitution methods are useful for understanding its underlying mechanisms. Recently, we successfully reconstructed a nuclear-like structure, termed an “artificial nucleus,” in living mouse oocytes by microinjecting solutions of T4 DNA (~166 kbp). This achievement allowed us to identify the physicochemical properties necessary for nuclear formation. In this paper, we describe a method for constructing artificial nuclei using T4 DNA solutions, which will contribute to future studies on the mechanisms of nuclear formation.

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T4 DNA-Induced Reconstruction of Artificial Nuclei in Living Mouse Oocytes

  • 实验方案

  • 发表日期：

    2025年

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  • Nao Yonezawa,
  • Yasushi Hiraoka,
  • Tokuko Haraguchi,
  • Kazuo Yamagata

摘要

Fertilization involves a specialized nuclear formation process distinct from that of somatic cells, and reconstitution methods are useful for understanding its underlying mechanisms. Recently, we successfully reconstructed a nuclear-like structure, termed an “artificial nucleus,” in living mouse oocytes by microinjecting solutions of T4 DNA (~166 kbp). This achievement allowed us to identify the physicochemical properties necessary for nuclear formation. In this paper, we describe a method for constructing artificial nuclei using T4 DNA solutions, which will contribute to future studies on the mechanisms of nuclear formation.