Research Topics
| Y EndoSummaryAffiliation: University of Tokyo Country: Japan Publications
| Collaborators
|
Detail Information
Publications
Structure-Activity study of retinoid agonists bearing substituted dicarba-closo-dodecaborane. Relation between retinoidal activity and conformation of two aromatic nucleiY Endo
Graduate School of Pharmaceutical Sciences, University of Tokyo, Japan
Bioorg Med Chem Lett 11:1307-11. 2001..The relatively planar conformation at the phenyl-N-phenyl moiety seems to play a critical role in the appearance of the biological activity...
Potent estrogen agonists based on carborane as a hydrophobic skeletal structure. A new medicinal application of boron clustersY Endo
Graduate School of Phamaceutical Sciences, University of Tokyo, Japan
Chem Biol 8:341-55. 2001..However, these features of carboranes may allow another application as a hydrophobic pharmacophore in biologically active molecules that interact hydrophobically with receptors...
Polymethylcarborane as a novel bioactive moiety: derivatives with potent retinoid antagonistic activityY Endo
Graduate School of Pharmaceutical Sciences, University of Tokyo, Japan
Bioorg Med Chem Lett 10:1733-6. 2000..This is the first example of derivatives of polymethylcarborane, which resembles C60 in size, with biological activity...
Clarification of the binding mode of teleocidin and benzolactams to the Cys2 domain of protein kinase Cdelta by synthesis of hydrophobically modified, teleocidin-mimicking benzolactams and computational docking simulationY Endo
Graduate School of Pharmaceutical Sciences, University of Tokyo, 7 3 1, Hongo, Bunkyo ku, Tokyo 113, Japan
J Med Chem 41:1476-96. 1998..The model explains well the remarkable difference in activity between 5 and its analogue having a bulky substituent at C-8...
Role of the hydrophobic moiety of tumor promoters. Synthesis and activity of 2-alkylated benzolactamsY Endo
Graduate School of Pharmaceutical Sciences, University of Tokyo, Japan
Bioorg Med Chem Lett 10:63-6. 2000..Structure-activity results indicate that a hydrophobic substituent at the C-2 position plays a critical role in the appearance of biological activities, as in the case of substitution at C-9...
Enhancing effect of tumor promoters, phorbol esters and teleocidins on nuclear receptor-mediated transcriptionH Fukasawa
Graduate School of Pharmaceutical Sciences, University of Tokyo, Japan
Biol Pharm Bull 23:1414-7. 2000..These results suggest this reporter system is useful for the evaluation of effects on the gene expression of various tumor promoters, including non-TPA type...
A receptor model for tumor promoters: rational superposition of teleocidins and phorbol estersA Itai
Faculty of Pharmaceutical Sciences, University of Tokyo, Japan
Proc Natl Acad Sci U S A 85:3688-92. 1988..Their mutual spatial arrangements are most important for biological activity...
Oxygenated cholesterols as ligands for cytosolic-nuclear tumor promoter binding protein: yakkasteroidsY Endo
Faculty of Pharmaceutical Sciences, University of Tokyo, Japan
Biochem Biophys Res Commun 194:1529-35. 1993..Investigation of the structure-activity relationships of yakkasteroids revealed that the structure of the side chain at the 20-position is important for the binding activity to CN-TPBP...
Synthesis, computer modeling and biological evaluation of novel protein kinase C agonists based on a 7-membered lactam moietyY Endo
Graduate School of Pharmaceutical Sciences, University of Tokyo, Japan
Bioorg Med Chem Lett 9:173-8. 1999..Computational docking simulation also indicates that the relative positions of the hydrogen-bonding sites and hydrophobic regions of the compounds are well matched to the PKC delta binding site...
[The active conformation of teleocidins: design and synthesis of new active molecules]Y Endo
Faculty of Pharmaceutical Sciences, University of Tokyo, Japan
Yakugaku Zasshi 114:464-77. 1994..Benzolactams become the simplest molecule reproducing the conformation and activity of teleocidin, and will be a useful tool for the study of tumor-promotion and cell differentiation...
Enhancement of human papillomavirus type 18 gene expression in HeLa cells by 12-O-tetradecanoylphorbol-13-acetate, 3 beta,5 alpha-dihydroxycholestan-6-one, and cholesterolY Matsushima
Faculty of Pharmaceutical Sciences, University of Tokyo, Japan
Biol Pharm Bull 17:1292-5. 1994..Treatment of the cells with cholesterol under serum-free conditions also resulted in an apparent increase of HPV18 expression...
3 beta,5 alpha-Dihydroxycholestan-6-one exists in human bloodM Yamaguchi
Graduate School of Pharmaceutical Sciences, University of Tokyo, Japan
Biol Pharm Bull 20:1044-6. 1997..The oxysterol binds specifically to phorbol ester specific binding protein in vitro, and may be an endogenous ligand of the protein...
Teleocidins and benzolactams inhibit cell killing by human immunodeficiency virus type 1 (HIV-1)Y Endo
Faculty of Pharmaceutical Sciences, University of Tokyo, Japan
Biol Pharm Bull 17:1147-9. 1994..Teleocidin B-4 and structurally related synthetic benzolactams were found to be potent inhibitors of cell killing by HIV-1. One of the benzolactams, (-)-BL-V8-310, showed a high selectivity index...
Alpha-glucosidase inhibitors with a 4,5,6,7-tetrachlorophthalimide skeleton pendanted with a cycloalkyl or dicarba-closo-dodecaborane groupS Sou
Institute of Molecular and Cellular Biosciences, University of Tokyo, Japan
Chem Pharm Bull (Tokyo) 49:791-3. 2001..Among them, 4,5,6,7-tetrachloro-N-cycloheptylphthalimide (9) showed the most potent activity, being approximately 30 times more active than the classical inhibitor, 1-deoxynojirimycin (1)...
Utility of boron clusters for drug design. Hansch-fujita hydrophobic parameters pi of dicarba-closo-dodecaboranyl groupsK Yamamoto
Graduate School of Pharmaceutical Sciences, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
Bioorg Med Chem Lett 11:2389-92. 2001..The values (pi=2.69-4.44) vary depending on the position of substitution on the carborane cage and the isomeric form (o-, m-, p-carboranes). These values lie within the range of those of hydrocarbons...
