title: Antioxidant and antiproliferative activity of curcumin semicarbazone.
abstract: A new semicarbazone derivative of curcumin (CRSC) was synthesized and examined for its antioxidant, antiproliferative, and antiradical activity and compared with those of curcumin (CR). The antioxidant activity was tested by their ability to inhibit radiation induced lipid peroxidation in rat liver microsomes. The antiproliferative activity was tested by studying the in vitro activity of CRSC against estrogen dependant breast cancer cell line MCF-7. Kinetics of reaction of (2,2'-diphenyl-1-picrylhydrazide) DPPH, a stable hydrogen abstracting free radical was studied to measure the antiradical activity using stopped-flow spectrophotometer. Finally one-electron oxidized radicals of CRSC were generated and characterized by pulse radiolysis. The results suggest that the probable site of attack for CRSC is both the phenolic OH and the imine carbonyl position. CRSC shows efficient antioxidant and antiproliferative activity although its antiradical activity is less than that of CR.
authors.affiliation: Department of Chemistry, University of Pune, India. sdutta@med.wayne.edu
authors.forename: Sabari
authors.initials: S
authors.lastname: Dutta
authors.forename: Subhash
authors.initials: S
authors.lastname: Padhye
authors.forename: K Indira
authors.initials: KI
authors.lastname: Priyadarsini
authors.forename: Chris
authors.initials: C
authors.lastname: Newton
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects*; D045744:Cell Line, Tumor; D003474:Curcumin / Q000737:chemistry / Q000494:pharmacology*; D004354:Drug Screening Assays, Antitumor; D005720:Gamma Rays; D006801:Humans; D015227:Lipid Peroxidation / Q000187:drug effects; D008862:Microsomes, Liver / Q000187:drug effects*; D051381:Rats; D012664:Semicarbazones / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D000975:Antioxidants; D012664:Semicarbazones; D003474:Curcumin