Abstract
A series of 24-membered macrocyclic hexaoxazoles containing one or two aminoalkyl substituents was synthesized and evaluated for cytotoxicity and for their ability to selectively stabilize G-quadruplex DNA and RNA. The most cytotoxic analog 4a, with IC50 values of 25 and 130 nM using KB3-1 and RPMI 8402 cells, is efficacious in vivo in athymic nude mice with a human tumor xenograft from the breast cancer cell line MDA-MB-435.
Original language | English |
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Pages (from-to) | 3150-3154 |
Number of pages | 5 |
Journal | Bioorganic and Medicinal Chemistry Letters |
Volume | 20 |
Issue number | 10 |
DOIs | |
Publication status | Published - May 15 2010 |
Externally published | Yes |
Keywords
- Antitumor
- Athymic nude mice
- Cytotoxicity
- G-quadruplex DNA
- G-quadruplex RNA
- G-quadruplex ligands
- Hexaoxazoles
- MDA-MB-435 xenograft
- Macrocycles
ASJC Scopus subject areas
- Drug Discovery
- Molecular Medicine
- Molecular Biology
- Biochemistry
- Clinical Biochemistry
- Pharmaceutical Science
- Organic Chemistry