シガ トモコ
  志賀 智子
   所属   医学部 医学科(東京女子医科大学病院)
   職種   講師
論文種別 原著
言語種別 英語
査読の有無 査読なし
表題 Cell adhesion aside from integrin system can abrogate anoikis in rat liver cells by down-regulation of FasL expression, not by activation of PI-3K/Akt and ERK signaling pathway.
掲載誌名 正式名:Biochemical and biophysical research communications
略  称:Biochem Biophys Res Commun
ISSNコード:(0006-291X)0006-291X(Linking)
掲載区分国外
巻・号・頁 300(1),pp.201-8
著者・共著者 Ishida Koji†, Nagahara Hikaru, Kogiso Tomomi, Aso Tomoko, Hayashi Naoaki, Akaike Toshihiro
発行年月 2003/01
概要 Epithelial cells require contact with extracellular matrix (ECM) to inhibit detachment-induced apoptosis (anoikis). The ERK and PI-3K/Akt signaling pathways have been identified to inhibit anoikis. We present here a different story. An adult rat liver cell line, ARLJ301-3, underwent apoptosis within 4h under suspension conditions even with active forms of Akt and ERK1/2. Once ARLJ301-3 cells are plated on tissue culture plates coated with synthetic polymer, such as poly-(N-p-vinyl benzyl-O-beta-D-galactopyranosyl-D-gluconamide) (PVLA), poly-L-lysine or polystyrene, instead of functional ECM such as fibronectin, they could survive and proliferate without activation of Akt and ERK1/2. The expression of Fas receptor ligand (FasL) is specifically detected in cells under suspension conditions or treated with cytochalasin-D. We present here the first report that FasL expression is up-regulated by the cytoskeletal disruption directed by cytochalasin-D treatment or cell detachment from ECM.
DOI org/10.1016/S0006-291X(02)02790-0
PMID 12480544