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Transcriptome Dynamics and Cell Dialogs Between Oocytes and Granulosa Cells in Mouse Follicle Development
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作者 Wenju Liu Chuan Chen +8 位作者 Yawei Gao Xinyu Cui Yuhan Zhang Liang Gu yuanlin he Jing Li Shaorong Gao Rui Gao Cizhong Jiang 《Genomics, Proteomics & Bioinformatics》 SCIE CAS CSCD 2024年第2期93-106,共14页
The development and maturation of follicles is a sophisticated and multistage process.The dynamic gene expression of oocytes and their surrounding somatic cells and the dialogs between these cells are critical to this... The development and maturation of follicles is a sophisticated and multistage process.The dynamic gene expression of oocytes and their surrounding somatic cells and the dialogs between these cells are critical to this process.In this study,we accurately classified the oocyte and follicle development into nine stages and profiled the gene expression of mouse oocytes and their surrounding granulosa cells and cumulus cells.The clustering of the transcriptomes showed the trajectories of two distinct development courses of oocytes and their surrounding somatic cells.Gene expression changes precipitously increased at Type 4 stage and drastically dropped afterward within both oocytes and granulosa cells.Moreover,the number of differentially expressed genes between oocytes and granulosa cells dramatically increased at Type 4 stage,most of which persistently passed on to the later stages.Strikingly,cell communications within and between oocytes and granulosa cells became active from Type 4 stage onward.Cell dialogs connected oocytes and granulosa cells in both unidirectional and bidirectional manners.TGFB2/3,TGFBR2/3,INHBA/B,and ACVR1/1B/2B of TGF-βsignaling pathway functioned in the follicle development.NOTCH signaling pathway regulated the development of granulosa cells.Additionally,many maternally DNA methylation-or H3K27me3-imprinted genes remained active in granulosa cells but silent in oocytes during oogenesis.Collectively,Type 4 stage is the key turning point when significant transcription changes diverge the fate of oocytes and granulosa cells,and the cell dialogs become active to assure follicle development.These findings shed new insights on the transcriptome dynamics and cell dialogs facilitating the development and maturation of oocytes and follicles. 展开更多
关键词 FOLLICULOGENESIS OOCYTE Granulosa cell TRANSCRIPTOME Cell dialog
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