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Articles 91 - 92 of 92
Full-Text Articles in Cell and Developmental Biology
Metabolic Checkpoints In Cancer Cell Cycle, Mahesh Saqcena
Metabolic Checkpoints In Cancer Cell Cycle, Mahesh Saqcena
Dissertations, Theses, and Capstone Projects
Growth factors (GFs) as well as nutrient sufficiency regulate cell division in metazoans. The vast majority of mutations that contribute to cancer are in genes that regulate progression through the G1 phase of the cell cycle. A key regulatory site in G1 is the growth factor-dependent Restriction Point (R), where cells get permissive signals to divide. In the absence of GF instructions, cells enter the quiescent G0 state. Despite fundamental differences between GF signaling and nutrient sensing, they both have been confusingly referred to as R and therefore by definition considered to be a singular event in G1. Autonomy from …
Identification And Characterization Of Protein Phopshatases Regulating The Sma/Mab Pathway In C. Elegans, Sheng Xiong
Identification And Characterization Of Protein Phopshatases Regulating The Sma/Mab Pathway In C. Elegans, Sheng Xiong
Dissertations, Theses, and Capstone Projects
TGF-beta signaling is a conserved signaling pathway among eukaryotes, which controls various normal cellular responses from cell proliferation to cell death. The mutations in its components are found in developmental disorders and cancer. Therefore, this signaling pathway is extensively investigated so that new therapeutic targets could be discovered and novel drugs could be developed. Previous studies suggested the involvement of phosphatases in regulation of TGF-beta signaling, but these studies were performed in cell culture rather than intact organisms. C. elegans is a tractable organism in which to study signaling in vivo. In C. elegans, growth is controled by a conserved …