Richter C
Laboratorium für Biochemie I, ETH, Zürich, Switzerland.
Free Radic Res Commun. 1990;8(4-6):329-34. doi: 10.3109/10715769009053366.
The norepinephrine analogue meta-iodo-benzylguanidine (MIBG), a substrate for mono(ADP-ribosylation) and inhibitor of eukaryotic ADP-ribosyltransferases, inhibits the prooxidant-induced and spontaneous calcium release from intact rat liver mitochondria without affecting pyridine nucleotide oxidation and hydrolysis. This finding strongly suggests regulation of calcium release by ADP-ribosylation in mitochondria, and may be relevant for the cellular and pharmacological effects of MIBG.
去甲肾上腺素类似物间碘苄胍(MIBG)是单(ADP - 核糖基化)的底物和真核ADP - 核糖基转移酶的抑制剂,它能抑制完整大鼠肝线粒体中由促氧化剂诱导的和自发的钙释放,而不影响吡啶核苷酸的氧化和水解。这一发现有力地表明线粒体中ADP - 核糖基化对钙释放有调节作用,并且可能与MIBG的细胞和药理作用相关。