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Orozco, Christine C.; Atkinson, Karen; Ryu, Sangwoo; Chang, George; Keefer, Christopher; Lin, Jian; Riccardi, Keith; Mongillo, Robert K.; Tess, David; Filipski, Kevin J.; Kalgutkar, Amit S.; Litchfield, John; Scott, Dennis; Di, Li
European journal of medicinal chemistry, 01/2020, Letnik: 185Journal Article
Unbound tissue-to-plasma partition coefficients (Kpuu) were determined for 56 structurally diverse compounds in rats following intravenous infusion. Five tissues were included in the study: white adipose, brain, heart, liver, and skeletal muscle. The rank ordering of the median tissue Kpuu values was: liver (4.5) > heart (1.8) > adipose (1.2) > skeletal muscle (0.6) > brain (0.05), with liver being most enriched and brain most impaired. The median Kpuu values of acids and zwitterions were lower than those of bases and neutrals in all tissues but liver. Selective tissue distribution was observed, dependent upon chemotype, which demonstrated the feasibility of targeting or restricting drug exposure in certain tissues through rational design. Physicochemical attributes for Kpuu were identified using recursive partitioning, which further classified compounds with enriched or impaired tissue distribution. The attributes identified provided valuable insight on design principles for asymmetric tissue distribution to improve efficacy or reduce toxicity. Display omitted •Compounds demonstrate unique tissue distributions depending on structural characteristics.•It is feasible to achieve asymmetric tissue distribution through rational medicinal chemistry design.•Enriched tissue exposure has been observed for compounds in all ionization classes.•Transporters not only transport ionizable compounds, but also neutrals.•Liver is the most enriched tissue; brain, most impaired; and heart, most unimpaired.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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