Prenylcoumarin with Rev-export inhibitory activity from Cnidii Monnieris Fructus.
By use of the fission yeast expressing the model fusion protein comprised of GST, SV40 T antigen NLS, GFP, and Rev-NES in the bioassay, the prenylcoumarin osthol (1) was disclosed as the new Rev-export inhibitor from the MeOH extract of Cnidii Monnieris Fructus. Furthermore, 1 was also found to inhibit export the genuine Rev in HeLa cells by indirect fluorescent antibody technique. By the competitive experiment using the biotinylated probe 3, osthol (1) was revealed to inhibit nuclear export of Rev through a NES non-antagonistic mode. Structure-activity relationship analysis of several analogs of 1 clarified that both prenyl side chain and double bond adjacent to the lactone carbonyl residue play an important role in the Rev-export inhibitory potency of 1.
Tamura
Satoru
S
Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan.
Fujitani
Toshiaki
T
Kaneko
Masafumi
M
Murakami
Nobutoshi
N
D021581:Active Transport, Cell Nucleus / Q000187:drug effects; D000276:Adjuvants, Immunologic; D019380:Anti-HIV Agents / Q000737:chemistry* / Q000302:isolation & purification; D003374:Coumarins / Q000302:isolation & purification / Q000494:pharmacology*; D015497:HIV-1; D006367:HeLa Cells; D006801:Humans; D010936:Plant Extracts / Q000737:chemistry* / Q000627:therapeutic use; D010946:Plants, Medicinal / Q000737:chemistry; D013329:Structure-Activity Relationship; D054321:rev Gene Products, Human Immunodeficiency Virus / Q000037:antagonists & inhibitors* / Q000378:metabolism
D000276:Adjuvants, Immunologic; D019380:Anti-HIV Agents; D003374:Coumarins; D010936:Plant Extracts; D054321:rev Gene Products, Human Immunodeficiency Virus; C046627:osthol