| 生化机理 |
N,N,N′,N′-Tetrakis(2-pyridylmethyl)ethylenediamine (TPEN) elicits pro-apoptotic effect in human acute promyelocytic NB4 cells by inhibiting nitric oxide signalling and Zn2+ signaling.[1] In microglia pretreated with zinc, TPEN inhibits the interleukin 6 secretion and nitric oxide synthase (iNOS) mRNA expression.[2] It induces damage on DNA structure by activating ATM (ataxia telangiectasia mutated) and ATR (ATM-Rad3-related) signaling in human colon cancer cells. TPEN是一种可透过膜的锌螯合剂;可降低细胞内锌水平并诱导细胞凋亡(即细胞收缩和凋亡小体的形成、DNA片段化和形成典型的DNA梯状带)。 |