Ronin governs the metabolic capacity of the embryonic lineage for post-implantation development

During implantation, the murine embryo transitions from a quiet into an active metabolic/proliferative state, which kick-starts the growth and morphogenesis of the post-implantation conceptus. Such transition is also required for embryonic stem cells to be established from mouse blastocysts, but the factors regulating this process are poorly understood. Here, we show that Ronin plays a critical role in the process by enabling active energy production, and the loss of Ronin results in the establishment of a reversible quiescent state in which naive pluripotency is promoted. In addition, Ronin fine-tunes the expression of genes that encode ribosomal proteins and is required for proper tissue-scale organisation of the pluripotent lineage during the transition from blastocyst to egg cylinder stage. Thus, Ronin function is essential for governing the metabolic capacity so that it can support the pluripotent lineage's high-energy demands for cell proliferation and morphogenesis.

Automated summary

During implantation, Ronin is crucial for enabling active energy production, promoting naive pluripotency, and fine-tuning the expression of genes encoding ribosomal proteins. Ronin is essential for governing the metabolic capacity in supporting high-energy demands for cell proliferation and morphogenesis in the pluripotent lineage.