Distribution and elimination of melphalan in rats and monkeys and distribution in tumors of mice bearing L1210 or P388 leukemias sensitive and resistant to this agent. 1980

R K Brown, and G Duncan, and D L Hill

Following iv injection, melphalan was eliminated monophasically from rat serum (half-life = 0.87 hour) and monkey serum (half-life = 1.9 hours) and in rat bile (half-life = 2.4 hours) and monkey urine (half-life = 1.3 hours). In rat bile and monkey urine, 2% and 20% of the dose, respectively, was excreted in 12 hours as unchanged melphalan. At each time of tissue assay (0.5-4 hours after injection), rat spleen contained less melphalan than serum, liver, or kidneys. The kidneys and bile of monkeys contained more melphalan that serum, liver, or spleen. Only a small amount of radioactivity from labeled melphalan appeared in the feces of monkeys. Melphalan reached higher concentrations in implants of P388 and L1210 leukemia cells sensitive to melphalan than in cell lines resistant to this drug. Furthermore, the amounts of radioactivity bound to macromolecules of the sensitive tumors were higher.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D007939 Leukemia L1210 An experimental LYMPHOCYTIC LEUKEMIA of mice. Leukemia L 1210,L 1210, Leukemia,L1210, Leukemia
D007941 Leukemia P388 An experimental lymphocytic leukemia originally induced in DBA/2 mice by painting with methylcholanthrene. P388D(1) Leukemia,P388, Leukemia
D007942 Leukemia, Experimental Leukemia induced experimentally in animals by exposure to leukemogenic agents, such as VIRUSES; RADIATION; or by TRANSPLANTATION of leukemic tissues. Experimental Leukemia,Experimental Leukemias,Leukemia Model, Animal,Leukemias, Experimental,Animal Leukemia Model,Animal Leukemia Models,Leukemia Models, Animal
D008297 Male Males
D008558 Melphalan An alkylating nitrogen mustard that is used as an antineoplastic in the form of the levo isomer - MELPHALAN, the racemic mixture - MERPHALAN, and the dextro isomer - MEDPHALAN; toxic to bone marrow, but little vesicant action; potential carcinogen. Medphalan,Merphalan,Phenylalanine Mustard,Sarcolysine,Sarkolysin,4-(Bis(2-chloroethyl)amino)phenylalanine,Alkeran,L-PAM,Mustard, Phenylalanine
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D006207 Half-Life The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity. Halflife,Half Life,Half-Lifes,Halflifes
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000882 Haplorhini A suborder of PRIMATES consisting of six families: CEBIDAE (some New World monkeys), ATELIDAE (some New World monkeys), CERCOPITHECIDAE (Old World monkeys), HYLOBATIDAE (gibbons and siamangs), CALLITRICHINAE (marmosets and tamarins), and HOMINIDAE (humans and great apes). Anthropoidea,Monkeys,Anthropoids,Monkey

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