Determining the mechanisms of normal cell cycle control is critical for our understanding of both development and oncogenesis. During development, cell proliferation occurs by coordinating progress through the cell cycle with growth. Conversely, cell cycle arrest occurs prior to, and is often necessary for, terminal differentiation. Cell proliferation and cell cycle arrest are also highly regulated after the completion of development: stem cells in adult tissues are under tight cell cycle control, as are quiescent cells that only proliferate in response to particular stimuli. Breakdowns in cell cycle control in any of these circumstances can have drastic consequences and contribute to the deregulated growth typical of cancer. The long term objective of this project is to elucidate how developmental programs affect cell cycle progression, a process that remains poorly understood. In this proposal we focus on gene expression mechanisms that control the G1-S transition because this is when most cells decide whether to enter or to exit the cell cycle.

Public Health Relevance

Cell proliferation is a fundamental aspect of the biology of all organisms, and is controlled by a highly orchestrated series of cell biological events termed the cell cycle that directs the accurate duplication and inheritance of the genome. A detailed molecular description of cell cycle events during animal development is critical for our understanding of cell proliferation control, and how such control goes awry in diseases like cancer.

National Institute of Health (NIH)
National Institute of General Medical Sciences (NIGMS)
Research Project (R01)
Project #
Application #
Study Section
Cellular Signaling and Regulatory Systems Study Section (CSRS)
Program Officer
Hoodbhoy, Tanya
Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
University of North Carolina Chapel Hill
Schools of Arts and Sciences
Chapel Hill
United States
Zip Code
Salzler, Harmony R; Tatomer, Deirdre C; Malek, Pamela Y et al. (2013) A sequence in the Drosophila H3-H4 Promoter triggers histone locus body assembly and biosynthesis of replication-coupled histone mRNAs. Dev Cell 24:623-34
Duronio, Robert J (2012) Developing S-phase control. Genes Dev 26:746-50
White, Anne E; Burch, Brandon D; Yang, Xiao-Cui et al. (2011) Drosophila histone locus bodies form by hierarchical recruitment of components. J Cell Biol 193:677-94
Burch, Brandon D; Godfrey, Ashley C; Gasdaska, Pamela Y et al. (2011) Interaction between FLASH and Lsm11 is essential for histone pre-mRNA processing in vivo in Drosophila. RNA 17:1132-47
Zielke, Norman; Kim, Kerry J; Tran, Vuong et al. (2011) Control of Drosophila endocycles by E2F and CRL4(CDT2). Nature 480:123-7
Perl, Nicholas R; Ide, Nathan D; Prajapati, Sudeep et al. (2010) Annulation of thioimidates and vinyl carbodiimides to prepare 2-aminopyrimidines, competent nucleophiles for intramolecular alkyne hydroamination. Synthesis of (-)-crambidine. J Am Chem Soc 132:1802-3
Lee, Hyun O; Zacharek, Sima J; Xiong, Yue et al. (2010) Cell type-dependent requirement for PIP box-regulated Cdt1 destruction during S phase. Mol Biol Cell 21:3639-53
Salzler, Harmony R; Davidson, Jean M; Montgomery, Nathan D et al. (2009) Loss of the histone pre-mRNA processing factor stem-loop binding protein in Drosophila causes genomic instability and impaired cellular proliferation. PLoS One 4:e8168
Lee, Hyun O; Davidson, Jean M; Duronio, Robert J (2009) Endoreplication: polyploidy with purpose. Genes Dev 23:2461-77
Marzluff, William F; Wagner, Eric J; Duronio, Robert J (2008) Metabolism and regulation of canonical histone mRNAs: life without a poly(A) tail. Nat Rev Genet 9:843-54

Showing the most recent 10 out of 23 publications