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Title: 2-(3-Aryl-2-propenoyl)-3-methylquinoxaline-1,4-dioxides: a novel cluster of tumor-specific cytotoxins which reverse multidrug resistance
Authors: Das, Umashankar ×
Pati, Hari N
Panda, Atulya K
De Clercq, Erik
Balzarini, Jan
Molnár, Joseph
Baráth, Zoltán
Ocsovszki, Imre
Kawase, Masami
Zhou, Lin
Sakagami, Hiroshi
Dimmock, Jonathan R #
Issue Date: Jun-2009
Publisher: Pergamon
Series Title: Bioorganic & Medicinal Chemistry vol:17 issue:11 pages:3909-3915
Abstract: A series of 2-(3-aryl-2-propenoyl)-3-methylquinoxaline-1,4-dioxides 3a-l were prepared by condensation of various aryl aldehydes with 2-acetyl-3-methylquinoxaline-1,4-dioxide 2. These compounds inhibit the growth of human Molt 4/C8 and CEM T-lymphocytes and the IC(50) values are mainly in the 5-30 microM range. The quinoxaline 1,4-dioxide 3j inhibited the growth of 58 human tumor cell lines, particularly leukemic and breast cancer neoplasms. All of the compounds 3a-l reversed the multidrug resistance (MDR) properties of murine L-5178Y leukemic cells which were transfected with the human MDR1 gene. The MDR-reversing effect may be due to the conjugated pi-electron system forming a weak electron charge transfer complex with the P-glycoprotein-mediated efflux pump. The compounds in series 2 and 3 were assessed against HL-60, HSC-2, HSC-3 and HSC-4 malignant cells as well as HGF, HPC and HPLF normal cell lines which revealed that the majority of the compounds displayed a greater toxicity to neoplastic than normal cells. Various ways in which the project may be expanded are presented.
URI: 
ISSN: 0968-0896
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Virology and Chemotherapy (Rega Institute)
Nuclear Medicine & Molecular Imaging
× corresponding author
# (joint) last author

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