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Reference Report
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| Citation | Buttitta, L.A., Katzaroff, A.J., Perez, C.L., de la Cruz, A., Edgar, B.A. (2007). A double-assurance mechanism controls cell cycle exit upon terminal differentiation in Drosophila. Dev. Cell 12(4): 631--643. (Export to RIS) | ||
| FlyBase ID | FBrf0201148 | ||
| Publication Type | Research paper | ||
| PubMed ID | 17419999 | ||
| PubMed Abstract | Terminal differentiation is often coupled with permanent exit from the cell cycle, yet it is unclear how cell proliferation is blocked in differentiated tissues. We examined the process of cell cycle exit in Drosophila wings and eyes and discovered that cell cycle exit can be prevented or even reversed in terminally differentiating cells by the simultaneous activation of E2F1 and either Cyclin E/Cdk2 or Cyclin D/Cdk4. Enforcing both E2F and Cyclin/Cdk activities is required to bypass exit because feedback between E2F and Cyclin E/Cdk2 is inhibited after cells differentiate, ensuring that cell cycle exit is robust. In some differentiating cell types (e.g., neurons), known inhibitors including the retinoblastoma homolog Rbf and the p27 homolog Dacapo contribute to parallel repression of E2F and Cyclin E/Cdk2. In other cell types, however (e.g., wing epithelial cells), unknown mechanisms inhibit E2F and Cyclin/Cdk activity in parallel to enforce permanent cell cycle exit upon terminal differentiation. | ||
| DOI | 10.1016/j.devcel.2007.02.020 | ||
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| Language of Publication | English | ||
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| Publication Type | Journal | ||
| Abbreviation | Dev. Cell | ||
| Title | Developmental Cell | ||
| Publication Year | 2001- | ||
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Data from Reference
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| Genes (14)
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