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用曲磷胺治疗的难治性实体瘤患者外周血单个核细胞的电子顺磁共振研究

Electron paramagnetic resonance study of peripheral blood mononuclear cells from patients with refractory solid tumors treated with Triapine.

作者信息

Kolesar Jill M, Schelman William R, Geiger Peter G, Holen Kyle D, Traynor Anne M, Alberti Dona B, Thomas James P, Chitambar Christopher R, Wilding George, Antholine William E

机构信息

University of Wisconsin Paul P. Carbone Comprehensive Cancer Center, University of Wisconsin-Madison, 600 Highland Avenue, Room K4/554, Madison, WI 53792, USA.

出版信息

J Inorg Biochem. 2008 Apr;102(4):693-8. doi: 10.1016/j.jinorgbio.2007.10.013. Epub 2007 Oct 30.

Abstract

The metal chelator Triapine, 3-aminopyridine-2-carboxaldehyde thiosemicarbazone, is a potent inhibitor of ribonucleotide reductase. EPR spectra consistent with signals from Fe-transferrin, heme, and low-spin iron or cupric ion were observed in peripheral blood mononuclear cells (PBMCs) obtained from patients treated with Triapine. One signal that is unequivocally identified is the signal for Fe-transferrin. It is hypothesized that Fe uptake is blocked by reactive oxygen species generated by FeT(2) or CuT that damage transferrin or transferrin receptor. A potential source for the increase in the heme signal is cytochrome c released from the mitochondria. These results provide valuable insight into the in vivo mechanism of action of Triapine.

摘要

金属螯合剂曲拉派定(3-氨基吡啶-2-羧醛缩氨基硫脲)是核糖核苷酸还原酶的有效抑制剂。在用曲拉派定治疗的患者外周血单个核细胞(PBMC)中观察到与铁转铁蛋白、血红素以及低自旋铁或铜离子信号一致的电子顺磁共振(EPR)光谱。一个明确鉴定出的信号是铁转铁蛋白的信号。据推测,铁摄取被FeT(2)或CuT产生的活性氧所阻断,这些活性氧会损伤转铁蛋白或转铁蛋白受体。血红素信号增加的一个潜在来源是从线粒体释放的细胞色素c。这些结果为曲拉派定的体内作用机制提供了有价值的见解。

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本文引用的文献

1
Chelators at the cancer coalface: desferrioxamine to Triapine and beyond.
Clin Cancer Res. 2006 Dec 1;12(23):6876-83. doi: 10.1158/1078-0432.CCR-06-1954.
3
A class of iron chelators with a wide spectrum of potent antitumor activity that overcomes resistance to chemotherapeutics.
Proc Natl Acad Sci U S A. 2006 Oct 3;103(40):14901-6. doi: 10.1073/pnas.0604979103. Epub 2006 Sep 26.
5
Triapine (3-aminopyridine-2-carboxaldehyde thiosemicarbazone) induces apoptosis in ovarian cancer cells.
J Soc Gynecol Investig. 2006 Feb;13(2):145-52. doi: 10.1016/j.jsgi.2005.11.004.
7
Cytochrome c release from mitochondria: all or nothing.
Nat Cell Biol. 2000 Mar;2(3):E41-3. doi: 10.1038/35004069.
9
Interaction of 2-formylpyridine thiosemicarbazonato copper (II) with Ehrlich ascites tumor cells.
Biochem Pharmacol. 1981 Jun 15;30(12):1595-604. doi: 10.1016/0006-2952(81)90386-5.

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