書誌事項
- タイトル別名
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- Enhancement Effect of Amiloride Derivative MH-12-43 on Thermosensitivity of Ehrlich Ascites Tumor Cells.
抄録
Amilorid, 3, 5-diamino-6-chloro-N- (diaminomethylene) pyrazinecarboxamide, and its derivative MH-12-43, N-amidino-3-amino-6-chloro-5- (N-ethylisopropylamino) pyrazinecarboxamide, were studied for cytotoxicity, thermosensitivity and changes of intracellular pH (pHi) in Ehrlich ascites tumor cells (EAT cells). Similar cytotoxicities were observed in MH-12-43 at lower concentrations than amiloride. After treatment with 0.5 mM amiloride or 0.05 mM MH-12-43 at 37°C for 120 min, no decrease in survival rate were shown. The effects of hyperthermia at 42°C were enhanced by amiloride and MH-12-43, and the more decrease in suvival rate with 0.05 mM MH-12-43 was observed rather than that with 0.5 mM amiloride from hyperthermia at 42°C. The treatment of 0.5 mM amiloride or 0.05 mM MH-12-43 reduced pHi at 37°C, while the more reduction was observed by the treatment at 42°C. The reduction of pHi by 0.05 mM MH-12-43 was more substantial than that of 0.5 mM amiloride at 42°C. These suggest that the enhancement in the hyperthermic effects by amiloride or MH-12-43 may be due in part to a decrease in pHi.
収録刊行物
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- 日本ハイパーサーミア学会誌
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日本ハイパーサーミア学会誌 9 (4), 310-317, 1993
日本ハイパーサーミア学会
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詳細情報 詳細情報について
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- CRID
- 1390001204351218560
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- NII論文ID
- 130003646840
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- ISSN
- 18819516
- 09112529
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可