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- W2026858056 abstract "Negatively charged albumins (NCAs, with the prototypes succinylated human serum albumin (Suc-HSA) and aconitylated human serum albumin (Aco-HSA)), modified proteins with a potent anti-human immunodeficiency virus type 1 (anti-HIV-1) activity in vitro, were studied for their pharmacokinetic behaviour in mice and their in vivo anti-HIV-1 efficacy in an HIV-1 infection model in mice. In contrast to the saturation kinetics found in rats, intravenous injections of 10-300 mg/kg for both NCAs showed a linear correlation between the area under the curve (AUC) and the dose. The elimination t1/2 was 25 and 30 min for Suc-HSA and Aco-HSA, respectively. Preinjections of an excess of formaldehyde-treated albumin (Form-HSA) resulted in plasma levels that were 3- and 4-fold higher for Aco-HSA and Suc-HSA, respectively. These data indicate that elimination is at least partly (scavenger) receptor-mediated. Organ distribution studies 10 min after injection showed an accumulation in liver (Suc-HSA 17.3 +/- 6.6% of the dose; Aco-HSA 20.9 +/- 2.3%) and lungs (Suc-HSA 12.7 +/- 10.5%; Aco-HSA 16.0 +/- 13.6). Intraperitoneal injection of 300 mg/kg Suc-HSA resulted in a final bioavailability of about 0.45. Suc-HSA was also evaluated for its in vivo neutralizing capacity in a human-to-mouse chimeric model for HIV-1 infection. Intraperitoneal injections of 300 and 3 mg/kg Suc-HSA, given 15-30 min before the mice were challenged with the virus, sufficed to protect these mice against infection with the HIV-1 IIIB strain." @default.
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- W2026858056 date "1997-01-01" @default.
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- W2026858056 title "Pharmacokinetics and anti-HIV-1 efficacy of negatively charged human serum albumins in mice" @default.
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- W2026858056 doi "https://doi.org/10.1016/s0166-3542(96)01005-4" @default.
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