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Cell Cycle Regulation by NF-YC in <i>Drosophila</i> Eye Imaginal Disc: Implications for Synchronization in the Non-Proliferative Region
oleh: Anthony Avellino, Chen-Huan Peng, Ming-Der Lin
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2023-07-01 |
Deskripsi
Cell cycle progression during development is meticulously coordinated with differentiation. This is particularly evident in the <i>Drosophila</i> 3rd instar eye imaginal disc, where the cell cycle is synchronized and arrests at the G1 phase in the non-proliferative region (NPR), setting the stage for photoreceptor cell differentiation. Here, we identify the transcription factor Nuclear Factor-YC (NF-YC) as a crucial player in this finely tuned progression, elucidating its specific role in the synchronized movement of the morphogenetic furrow. Depletion of <i>NF-YC</i> leads to extended expression of Cyclin A (CycA) and Cyclin B (CycB) from the FMW to the NPR. Notably, <i>NF-YC</i> knockdown resulted in decreased expression of Eyes absent (Eya) but did not affect Decapentaplegic (Dpp) and Hedgehog (Hh). Our findings highlight the role of NF-YC in restricting the expression of CycA and CycB in the NPR, thereby facilitating cell-cycle synchronization. Moreover, we identify the transcriptional cofactor Eya as a downstream target of NF-YC, revealing a new regulatory pathway in <i>Drosophila</i> eye development. This study expands our understanding of NF-YC’s role from cell cycle control to encompass developmental processes.