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논문 기본 정보

자료유형
학술저널
저자정보
서민석 (서울대학교 약학대학) 심창구 (서울대학교 약학대학) 권종범 (한국과학기술연구원 유전공학센터) 나도선 (한국과학기술연구원 유전공학센터) 이선복 (한국과학기술연구원 유전공학센터) 함경수 (한국과학기술연구원 유전공학센터) 한문희 (한국과학기술연구원 유전공학센터)
저널정보
대한약학회 약학회지 약학회지 제34권 제4호
발행연도
1990.1
수록면
238 - 243 (6page)

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Pharmacokinetic characteristics of recombinant human interleukin-2 (rH IL-2) wre studied in the rat. First, different doses of rH IL-2 ranging from 6,400 to 1,600,000 U/kg were injected intravenously and the effect of dose size on the pharmacokinetics was examined. There was no dose dependency in the pharmacokinetics of rHIL-2 in the dose range of 6,400-40,000 U/kg. But at the dose of 1,600,000 U/kg, there was a severe hemolysis throughout the experiment and the pharmacokinetic parameters such as Vdss and CLt were significantly increased compared to those obtained from lower doses. It also showed that this drug is hardly distributed to the peripheral tissues and hardly eliminated from the body, since the valume of distribution (Vdss) and total body clearance (CLt) were 45-75 ml/kg and 1-2 ml/min/kg, respectively. The Vdss is close to the actual plasma volume and the CLt is less than glomerular filtration rate (GFR). Therefore it seemed that rH IL-2 is distributed only in the plasma pool and hardly filtered in the kidney due to its very large molecular weight. Second, rH IL-2 was administered to the rat via several routes such as hepatic portal vein (PV), intraperitoneal (IP), peroral (PO) and intranasal (IN) routes. The bioavailabilities (BA) of PV, IP, PO and IN routes were 96.8, 4.9, 0 and 0.1%, respectively. The addition of some nasal absorption enhancers such as taurocholate, taurodeoxycholate, glycocholate and glycodeoxycholate did not increase the BA of intranasaly administered rH IL-2. The result is contrast to the effect of these bile salts on the nasal absorption of ${\alpha}-inteferon$. Considering it together with the pharmacokinetic parameters, very large molecular weight of rH IL-2 seemed again to be the cause to very poor membrane permeability.

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