著者

西内 偉格 甲斐 包子 吉田 真里子 高岸 靖 山田 秀雄 永井 修吾 刈谷 巽 佐々木 緊

出版者

The Japanese Society for the Study of Xenobiotics

雑誌

薬物動態 (ISSN:09161139)

巻号頁・発行日

vol.5, no.2, pp.165-177, 1990 (Released:2007-03-29)

参考文献数

14

被引用文献数

5

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The absorption, distribution, excretion and metabolism of recombinant human interleukin-2 (S-6820) were studied following intravenous or subcutaneous injection at a dose of 5×105U/kg to rats. Concentrations of S-6820 in serum, tissues and other body fluids were measured by a bioassay and an enzyme immunoassay. 1. After intravenous injection of S-6820 to rats, serum levels of S-6820 decreased biphasically and the half-lives of the α phase and β phase were 2. 4 min and 16min, respectively. 2. Absorption ratio after subcutaneous injection of S-6820 was about 37%.3. After repeated intravenous injection of S-6820 once a day for 5 days, the levels of S-6820 in serum and tissues reached the same levels as after single administration. No accumulation was observed.4. After intravenous injection of S-6820, especially high level was observed in the kidney, however, it decreased rapidly (t1/2=11min). The levels of S-6820 in the other organs (spleen, lung, heart and liver) were lower than the serum level.5. After intravenous injection of S-6820 to 20-th day pregnant rat, S-6820 in the amniotic fluid and fetus was not detected.6. After intravenous injection to lactating rats, the transfer of S-6820 from blood to milk was minimal.7. A little of S-6820 was found in the bile by EIA. S-6820 was not detected in the urine by EIA method.8. The disappearance rates of S-6820 in rats changed from t1/2(β)=0.41hr in sham operated rats to t1/2(β)=1.57hr in rats with renal excision. The kidney appeared to be the main metabolic site.

著者

齋藤 厚 砂川 慶介 炭山 嘉伸 中島 光好 池澤 善郎 比嘉 太 佐々木 緊 矢野 裕二

出版者

公益社団法人 日本化学療法学会

雑誌

日本化学療法学会雑誌 (ISSN:13407007)

巻号頁・発行日

vol.51, no.8, pp.497-506, 2003-08-25 (Released:2011-08-04)

被引用文献数

1