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Articles 1 - 2 of 2
Full-Text Articles in Molecular Biology
Live-Cell Monitoring Of Periodic Gene Expression In Synchronous Human Cells Identifies Forkhead Genes Involved In Cell Cycle Control, Gavin D. Grant, Joshua Gamsby, Viktor Martyanov, Lionel Brooks, Lacy K. George, J. Matthew Mahoney, Jennifer J. Loros, Jay C. Dunlap, Michael L. Whitfield
Live-Cell Monitoring Of Periodic Gene Expression In Synchronous Human Cells Identifies Forkhead Genes Involved In Cell Cycle Control, Gavin D. Grant, Joshua Gamsby, Viktor Martyanov, Lionel Brooks, Lacy K. George, J. Matthew Mahoney, Jennifer J. Loros, Jay C. Dunlap, Michael L. Whitfield
Dartmouth Scholarship
We developed a system to monitor periodic luciferase activity from cell cycle-regulated promoters in synchronous cells. Reporters were driven by a minimal human E2F1 promoter with peak expression in G1/S or a basal promoter with six Forkhead DNA-binding sites with peak expression at G2/M. After cell cycle synchronization, luciferase activity was measured in live cells at 10-min intervals across three to four synchronous cell cycles, allowing unprecedented resolution of cell cycle-regulated gene expression. We used this assay to screen Forkhead transcription factors for control of periodic gene expression. We confirmed a role for FOXM1 and identified two novel cell cycle …
Auf1/Hnrnp D Represses Expression Of Vegf In Macrophages, Abigail Fellows, Mary E. Griffin, Brenda L. Petrella, Lihui Zhong, Fatemeh P. Parvin-Nejad, Roy Fava, Peter Morganelli, R. Brooks Robey, Ralph C. Nichols
Auf1/Hnrnp D Represses Expression Of Vegf In Macrophages, Abigail Fellows, Mary E. Griffin, Brenda L. Petrella, Lihui Zhong, Fatemeh P. Parvin-Nejad, Roy Fava, Peter Morganelli, R. Brooks Robey, Ralph C. Nichols
Dartmouth Scholarship
Vascular endothelial growth factor (VEGF) is a regulator of vascularization in development and is a key growth factor in tissue repair. In disease, VEGF contributes to vascularization of solid tumors and arthritic joints. This study examines the role of the mRNA-binding protein AUF1/heterogeneous nuclear ribonucleoprotein D (AUF1) in VEGF gene expression. We show that overexpression of AUF1 in mouse macrophage-like RAW-264.7 cells suppresses endogenous VEGF protein levels. To study 3′ untranslated region (UTR)–mediated regulation, we introduced the 3′ UTR of VEGF mRNA into a luciferase reporter gene. Coexpression of AUF1 represses VEGF-3′ UTR reporter expression in RAW-264.7 cells and in …