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Selective tumor apoptosis by MF13, L-prolyl-L-m-[bis(chloroethyl)amino]-phenylalanyl-L-norvaline ethyl ester, a new sarcolysin containing tripeptide.
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ID50 and ID90 values for L-prolyl-L-m-[bis(chloroethyl)amino]-phenylalanyl-L-norvaline ethyl ester HCl (MF13), were determined in four murine (leukemia, lymphoma, melanoma, and lung) and eight human cancer cell lines (two leukemia, prostate, kidney, colon, two melanoma, and breast). Cytotoxic
Sulfamide antifolates inhibiting thymidylate synthase: synthesis, enzyme inhibition and cytotoxicity.
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Synthesis and biological evaluation are described of seven new analogues (3-9) of two potent thymidylate synthase inhibitors, 10-propargyl-5,8-dideazafolate (1) and its 2-methyl-2-deamino congener ICI 198583 (2). While the new compunds 3 and 4 were analogues of 1 and 2, respectively, containing a
Measurement of serum L-asparagine in the presence of L-asparaginase requires the presence of an L-asparaginase inhibitor.
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The antileukemic activity of L-asparaginase (ASNase), an important component of therapy for acute lymphoblastic leukemia, is thought to result from depletion of serum L-asparagine (Asn). In studies of the pharmacological effects of ASNase, investigators have reported prolonged reduction in the serum
Studies on RA derivatives. V. Synthesis and antitumor activity of Ala2-modified RA-VII derivatives.
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A number of RA-VII derivatives having various amino acids including proline (6), pipecolic acid (11), norvaline (12), ornithine (14), aspartic acid (15) and methionine (20) in place of Ala2 have been synthesized from RA-X methyl ester (3) and evaluated for cytotoxicity to P388 leukemia and KB cells
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