Journal
GENETICS
Volume 177, Issue 1, Pages 655-660Publisher
GENETICS SOCIETY AMERICA
DOI: 10.1534/genetics.107.075762
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Here we show that in the nematode Caenorhabditis elegans mutational inactivation of two autophagy genes unc-51/atg1 and bec-1/atg6/beclin1 results in small body size without affecting cell number. Furthermore, loss-of-function mutations in unc-51 and bec-1 suppress the giant phenotype of mutant animals with aberrant insulin-like growth factor-1 (insulin/IGF-1) or transforming growth factor-beta (TGF-beta) signaling. This function for unc-51 and bec-1 in cell size control and their interaction with these two growth modulatory pathways may represent a link between the hormonal and nutritional regulation of cell growth.
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