Disrupted MOS signaling alters meiotic cell cycle regulation and the egg transcriptome

ABSTRACT: Loss of MOS in female mice disrupts metaphase II arrest, potentially causing infertility and germ cell tumors. Single-egg RNA sequencing revealed widespread gene expression changes in mos -/- eggs, including upregulation of cell cycle regulators like Aurka, Bub3, and Cdk7. Pathways related to RNA metabolism, transcription, and neddylation were also enriched in mos -/- eggs. Notably, the transcriptome of mos -/- eggs differed from that of chemically activated eggs. These results highlight MOS as a key regulator of the meiotic cell cycle and transcriptome integrity essential for oocyte developmental competence.

ORGANISM(S): Mus musculus

PROVIDER: GSE297431 | GEO | 2025/05/20

REPOSITORIES: GEO