OSI-7904L

Definition / meaning of OSI-7904L

A liposome-encapsulated formulation of the benzoquinazoline folate analog OSI-7904 with antineoplastic activity. As a thymidylate synthase inhibitor, OSI-7904 noncompetitively binds to thymidylate synthase, resulting in inhibition of thymine nucleotide synthesis and DNA replication. Liposome encapsulation improves the efficacy and increases the half-life of OSI-7904.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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