. . . . . . . . . . . . "a(SCHEM:Tretinoin) -> p(HGNC:PIK3CB)" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "RA treatment activates the PI3K/Akt signaling pathway, resulting in increased PI3K activity in extracts from RA-treated cells and a rapid increase in phosphorylation of Akt in Ser-473. Inhibition of PI3K by LY294002 impaired RA-induced differentiation, as assessed by morphological and biochemical criteria" . . "Selventa" . . . . "2014-07-03T14:31:49.096+02:00"^^ . . .