Methods, compositions and compound assays for inhibiting amyloid-beta protein production
申请人:Merchiers Gerard Pascal
公开号:US20050277612A1
公开(公告)日:2005-12-15
A method for identifying compounds that inhibit amyloid-beta precursor protein processing in cells, comprising contacting a test compound with a SPHK polypeptide, or fragment thereof, and measuring a compound-SPHK property related to the production of amyloid-beta peptide. Cellular assays of the method measure indicators including phosphorylated kinase substrate and/or amyloid beta peptide levels. Therapeutic methods, and pharmaceutical compositions including effective amyloid-beta precursor processing-inhibiting amounts of SPHK expression inhibitors, are useful for treating conditions involving cognitive impairment such as Alzheimer's Disease.
[EN] METHODS, COMPOSITIONS AND COMPOUND ASSAYS FOR INHIBITING AMYLOID-BETA PROTEIN PRODUCTION<br/>[FR] METHODES, COMPOSITIONS ET DOSAGES DESTINES A L'INHIBITION DE LA PRODUCTION DE PROTEINES BETA-AMYLOIDES
申请人:GALAPAGOS GENOMICS NV
公开号:WO2005103692A2
公开(公告)日:2005-11-03
A method for identifying compounds that inhibit amyloid-beta precursor protein processing in cells, comprising contacting a test compound with a SPHK polypeptide, or fragment thereof, and measuring a compound-SPHK property related to the production of amyloid-beta peptide. Cellular assays of the method measure indicators including phosphorylated kinase substrate and/or amyloid beta peptide levels. Therapeutic methods, and pharmaceutical compositions including effective amyloid-beta precursor processing-inhibiting amounts of SPHK expression inhibitors, are useful for treating conditions involving cognitive impairment such as Alzheimer’s Disease.
Synthesis of Azaphilones and Related Molecules by Employing Cycloisomerization ofo-Alkynylbenzaldehydes
作者:Jianglong Zhu、Andrew R. Germain、John A. Porco
DOI:10.1002/anie.200353037
日期:2004.2.27
S-15183a and b, New Sphingosine Kinase Inhibitors, Produced by a Fungus.
In the course of our screening for inhibitors of sphingosine kinase, we found two active compounds in a culture broth of a fungus, Zopfiella inermis SANK 15183. The structures of the compounds, named S-15183a and b, were elucidated by a combination of spectroscopic analyses to be new azaphilone-type metabolites. S-15183a and b inhibited sphingosine kinase from rat liver with IC50 values of 2.5 and 1.6μM, respectively. S-15183a also inhibited endogenous SPH kinase activity in intact platelets.