886578-07-0Relevant articles and documents
Inhibitory effects of gossypol, gossypolone, and apogossypolone on a collection of economically important filamentous fungi
Mellon, Jay E.,Zelaya, Carlos A.,Dowd, Michael K.,Beltz, Shannon B.,Klich, Maren A.
scheme or table, p. 2740 - 2745 (2012/07/30)
Racemic gossypol and its related derivatives gossypolone and apogossypolone demonstrated significant growth inhibition against a diverse collection of filamentous fungi that included Aspergillus flavus, Aspergillus parasiticus, Aspergillus alliaceus, Aspergillus fumigatus, Fusarium graminearum, Fusarium moniliforme, Penicillium chrysogenum, Penicillium corylophilum, and Stachybotrys atra. The compounds were tested in a Czapek agar medium at a concentration of 100 μg/mL. Racemic gossypol and apogossypolone inhibited growth by up to 95%, whereas gossypolone effected 100% growth inhibition in all fungal isolates tested except A. flavus. Growth inhibition was variable during the observed time period for all tested fungi capable of growth in these treatment conditions. Gossypolone demonstrated significant aflatoxin biosynthesis inhibition in A. flavus AF13 (B1, 76% inhibition). Apogossypolone was the most potent aflatoxin inhibitor, showing greater than 90% inhibition against A. flavus and greater than 65% inhibition against A. parasiticus (B1, 67%; G 1, 68%). Gossypol was an ineffectual inhibitor of aflatoxin biosynthesis in both A. flavus and A. parasiticus. Both gossypol and apogossypolone demonstrated significant inhibition of ochratoxin A production (47%; 91%, respectively) in cultures of A. alliaceus.
Synthesis and biological evaluation of apogossypolone derivatives as pan-active inhibitors of antiapoptotic B-cell lymphoma/leukemia-2 (Bcl-2) family proteins
Wei, Jun,Kitada, Shinichi,Stebbins, John L.,Placzek, William,Zhai, Dayong,Wu, Bainan,Rega, Michele F.,Zhang, Ziming,Cellitti, Jason,Yang, Li,Dahl, Russell,Reed, John C.,Pellecchia, Maurizio
, p. 8000 - 8011 (2011/03/19)
Overexpression of antiapoptotic Bcl-2 family proteins is commonly related with tumor maintenance, progression, and chemoresistance. Inhibition of these antiapoptotic proteins is an attractive approach for cancer therapy. Guided by nuclear magnetic resonan
Design and synthesis of a gossypol derivative with improved antitumor activities
Zhan, Yonghua,Jia, Guangfeng,Wu, Daocheng,Xu, Yiqing,Xu, Liang
experimental part, p. 223 - 229 (2009/05/26)
A novel chemical process has been devised for the synthesis of a new derivative of gossypol, 6,7,6',7'-tetrahydroxy-5,5'-diisopropyl-3,3'-dimethyl- [2,2']binaphthalenyl-1,4,1',4'-tetraone (Apogossypolone). This new process has only four steps, with a shorter synthesis span, a simple purification process, and improved yield and quality. The structure of apogossypolone was characterized by 1H-nuclear magnetic resonance, 13C- nuclear magnetic resonance, mass spectroscopy, infrared spectroscopy, and elemental analysis. Cell-cytotoxicity assay demonstrates that apogossypolone is three- to six-fold more potent than the parent compound, (-)-gossypol, in inhibiting the human prostate tumor cell lines PC-3 and DU-145 as well as the human breast cancer cell line MDA-MB-231. The colony-formation assay with DU-145 cells showed that apogossypolone inhibited more than 70% of colony formation at 1 μM, whereas (-)-gossypol at 10 μM only inhibited less than 50% of colony formation. The results indicate that apogossypolone exerts strong antitumor activities in human prostate and breast cancer cells, and thus represents a promising cancer therapeutic.