Plicamycin

• Catalog No.: DB06810
• CAS Number: 18378-89-7
• M. F.: C52H76O24
• M. W.: 1085.14544

SYNONYMS

• IUPAC name: (2S,3S)-3-[(1S,3S,4R)-3,4-dihydroxy-1-methoxy-2-oxopentyl]-2-{[(2S,4R,5R,6R)-4-{[(2S,4R,5S,6R)-4-{[(2S,4S,5R,6R)-4,5-dihydroxy-4,6-dimethyloxan-2-yl]oxy}-5-hydroxy-6-methyloxan-2-yl]oxy}-5-hydroxy-6-methyloxan-2-yl]oxy}-6-{[(2S,4R,5R,6R)-4-{[(2S,4R,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy}-5-hydroxy-6-methyloxan-2-yl]oxy}-8,9-dihydroxy-7-methyl-1,2,3,4-tetrahydroanthracen-1-one
• IUPAC Traditional name: mith
• Brand Name: Mithracin
• Synonyms: Mithramycin

DATABASE IDS

• CAS Number: 18378-89-7

DETAILS

Description (English)

• Drug Groups: approved; withdrawn
• Description: Plicamycin is an antineoplastic antibiotic produced by Streptomyces plicatus. It has been used in the treatment of testicular cancer, Paget's disease of bone, and, rarely, the management of hypercalcemia. The manufacturer discontinued plicamycin in 2000.
• Indication: For the treatment of testicular cancer, as well as hypercalcemia and hypercalciuria associated with a variety of advanced forms of cancer.
• Pharmacology: Plicamycin is lethal to Hela cells in 48 hours at concentrations as low as 0.5 micrograms per milliliter of tissue culture medium. Plicamycin has shown significant anti-tumor activity against experimental leukemia in mice when administered intraperitoneally.
• Toxicity: The most important form of toxicity associated with the use of plicamycin consists of a dose-related bleeding syndrome which usually begins with an episode of epistaxis. Plicamycin crosses the blood-brain barrier; the concentration found in brain tissue is low but it persists longer than in other tissues.
• Protein Binding: There is no evidence of protein binding, nor is there any evidence of metabolism of the carbohydrate moiety of the drug to carbon dioxide and water with loss through respiration.
• Elimination: Radioautography studies with 3H-labeled plicamycin in mice show that the greatest concentrations of the isotope are in the Kupffer cells of the liver and cells of the renal tubules. Plicamycin is rapidly cleared from the blood within the first 2 hours and excretion is also rapid. 67% percent of measured excretion occurs within 4 hours, 75% within 8 hours, and 90% is recovered in the first 24 hours after injection.
• References: Wohlert SE, Kunzel E, Machinek R, Mendez C, Salas JA, Rohr J: The structure of mithramycin reinvestigated. J Nat Prod. 1999 Jan;62(1):119-21. [Pubmed]
• External Links: Wikipedia; RxList; Drugs.com

REFERENCES

• Wohlert SE, Kunzel E, Machinek R, Mendez C, Salas JA, Rohr J: The structure of mithramycin reinvestigated. J Nat Prod. 1999 Jan;62(1):119-21. Pubmed