Title : Increased gadd153 messenger RNA level is associated with apoptosis in human leukemic cells treated with etoposide.

Pub. Date : 1997 Feb 15

PMID : 9044846






5 Functional Relationships(s)
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1 Increased gadd153 messenger RNA level is associated with apoptosis in human leukemic cells treated with etoposide. Etoposide DNA damage inducible transcript 3 Homo sapiens
2 We have investigated the relationships between gadd153 gene expression and apoptosis induction in four human leukemic cell lines with different sensitivities to apoptosis induced by etoposide (VP-16), a topoisomerase II inhibitor. Etoposide DNA damage inducible transcript 3 Homo sapiens
3 Both gadd153 mRNA level increase and internucleosomal DNA fragmentation were inhibited by N-tosyl-L-phenylalanine chloromethylketone, a serine threonine protease inhibitor, N-acetyl-leucyl-leucyl-norleucinal, an inhibitor of calpain, N-acetylcysteine, an inhibitor of oxidative metabolism, and overexpression of Bcl-2. Tosylphenylalanyl Chloromethyl Ketone DNA damage inducible transcript 3 Homo sapiens
4 Both gadd153 mRNA level increase and internucleosomal DNA fragmentation were inhibited by N-tosyl-L-phenylalanine chloromethylketone, a serine threonine protease inhibitor, N-acetyl-leucyl-leucyl-norleucinal, an inhibitor of calpain, N-acetylcysteine, an inhibitor of oxidative metabolism, and overexpression of Bcl-2. Acetylcysteine DNA damage inducible transcript 3 Homo sapiens
5 These results indicate that gadd153 gene expression increase occurs downstream of events sensitive to N-tosyl-L-phenylalanine chloromethylketone, calpain inhibitor I, and Bcl-2 and upstream of interleukin 1beta-converting enzyme-related proteases activation in leukemic cells in which treatment with VP-16 induces rapid apoptosis. Tosylphenylalanyl Chloromethyl Ketone DNA damage inducible transcript 3 Homo sapiens