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Unbiased transcriptome signature of in vivo cell proliferation reveals pro- and antiproliferative gene networks.


ABSTRACT: Different types of mature B-cell lymphocytes are overall highly similar. Nevertheless, some B cells proliferate intensively, while others rarely do. Here, we demonstrate that a simple binary classification of gene expression in proliferating vs. resting B cells can identify, with remarkable selectivity, global in vivo regulators of the mammalian cell cycle, many of which are also post-translationally regulated by the APC/C E3 ligase. Consequently, we discover a novel regulatory network between the APC/C and the E2F transcription factors and discuss its potential impact on the G1-S transition of the cell cycle. In addition, by focusing on genes whose expression inversely correlates with proliferation, we demonstrate the inherent ability of our approach to also identify in vivo regulators of cell differentiation, cell survival, and other antiproliferative processes. Relying on data sets of wt, non-transgenic animals, our approach can be applied to other cell lineages and human data sets.

SUBMITTER: Cohen M 

PROVIDER: S-EPMC3875674 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature

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Unbiased transcriptome signature of in vivo cell proliferation reveals pro- and antiproliferative gene networks.

Cohen Meital M   Vecsler Manuela M   Liberzon Arthur A   Noach Meirav M   Zlotorynski Eitan E   Tzur Amit A  

Cell cycle (Georgetown, Tex.) 20130813 18


Different types of mature B-cell lymphocytes are overall highly similar. Nevertheless, some B cells proliferate intensively, while others rarely do. Here, we demonstrate that a simple binary classification of gene expression in proliferating vs. resting B cells can identify, with remarkable selectivity, global in vivo regulators of the mammalian cell cycle, many of which are also post-translationally regulated by the APC/C E3 ligase. Consequently, we discover a novel regulatory network between t  ...[more]

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