2017年2月
Pharmacodynamics of S-dimethylarsino-glutathione, a putative metabolic intermediate of inorganic arsenic, in mice
BIOCHEMICAL PHARMACOLOGY
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- 巻
- 126
- 号
- 開始ページ
- 79
- 終了ページ
- 86
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.bcp.2016.11.020
- 出版者・発行元
- PERGAMON-ELSEVIER SCIENCE LTD
Inorganic arsenicals are well-known carcinogens, whereas arsenite (iAs(III)) compounds are now recognized as potent therapeutic agents for several leukemias, and arsenic trioxide has been used for the treatment of recurrent acute promyelocytic leukemia (APL). However, recent clinical trials revealed that arsenite is not always effective for non-APL malignancies. Another arsenical, S-dimethylarsinoglutathione ([DMA(III)(GS)]), which is a putative metabolic intermediate in the hepatic metabolism of iAs(III), shows promise for treating several types of lymphoma. However, the metabolism of [DMA(III)(GS)] has not been well investigated, probably because [DMA(III)(GS)] is not stable in biological fluids where the concentration of glutathione is low. In the present study, we injected [DMA(III)(GS)] intravenously into mice and compared the tissue distribution and metabolic dynamics of [DMA(III)(GS)] with those of sodium arsenite (NaAsO2). We found a unique organ preference for the distribution of [DMA(III)(GS)] to the lung and brain in comparison to NaAsO2. Furthermore, [DMA(III)(GS)] appeared to bind to serum albumin by exchanging its glutathione moiety quickly after administration, providing novel insights into the longer retention of [DMA(III)(GS)] in plasma. (C) 2016 Elsevier Inc. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.bcp.2016.11.020
- ISSN : 0006-2952
- eISSN : 1873-2968
- Web of Science ID : WOS:000394196500007