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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

cDNA expression array analysis of gene expression in human hepatocarcinoma Hep3B cells induced by BNIPL-1.

Bcl-2/adenovirus E1B 19 kDa interacting protein 2 like-1 (BNIPL-1) is a novel human protein identified in our laboratory, which can interact with Bcl-2 and Cdc42GAP and induce apoptosis via the BNIP-2 and Cdc42GAP homology ( BCH) domain. In the present study, we established the Hep3B-Tet-on stable cell line in which expression of BNIPL-1 can be induced by doxycycline. The cell proliferation activity assay showed that the overexpression of BNIPL-1 suppresses Hep3B cell growth in vitro. The differential expression profiles of 588 known genes from BNIPL-1-transfected Hep3B-Tet-on and vector control cells were determined using the Atlas human cDNA expression array. Fifteen genes were differentially expressed between these two cell lines, among which seven genes were up-regulated and eight genes were down-regulated by BINPL-1. Furthermore, the differential expression result was confirmed by semiquantitative RT-PCR. Among these differentially expressed genes, p16INK4, IL-12, TRAIL and the lymphotoxin beta gene involved in growth suppression or cell apoptosis were up-regulated, and PTEN involved in cell proliferation was down-regulated by BNIPL-1. These results suggest that BNIPL-1 might inhibit cell growth though cell cycle arrest and/or apoptotic cell death pathway(s).[1]


  1. cDNA expression array analysis of gene expression in human hepatocarcinoma Hep3B cells induced by BNIPL-1. Xie, L., Qin, W.X., Li, J.J., He, X.H., Shu, H.Q., Yao, G.F., Wan, D.F., Gu, J.R. Acta Biochim. Biophys. Sin. (Shanghai) (2005) [Pubmed]
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