会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明专利
    • FUNCTIONAL SCREENING ASSAY
    • CA2569916A1
    • 2006-01-12
    • CA2569916
    • 2005-06-22
    • JANSSEN PHARMACEUTICA NV
    • BUIST ARJAN
    • C12N15/12C07K14/705C12N15/63C12N15/85G01N33/50G01N33/94
    • In a first aspect the present invention provides an inducible expression vector encoding a metabotropic glutamate receptor. In particular a tetracycline inducible expression vector such as for example the commercially available pcDNA4/TO mammalian expression vector (Invitrogen, Carlsbad, Calif. USA) comprising the nucleotide sequence encoding for a member of the Group I mGluRs, in particular for the human mGluR1a (SEQ ID No1) or mGluR5 receptor (SEQ ID No.3). In a more preferred embodiment the inducible expression vector is selected from the tetracycline inducible expression plasmids hmGlu1a-pcDNA4/TO (FIG. 4 ) and hmGlu5a-pcDNA4/TO (FIG. 5 ). In a second aspect, the present invention provides a cell line comprising any of the aforementioned inducible expression vectors. In particular the T-Rex-293 cells stably transfected with the tetracycline inducible expression plasmids hmGlu1a-pcDNA4/TO (FIG. 4 ) and hmGlu5a-pcDNA4/TO (FIG. 5 ) which where deposited at the Belgian Coordinated Collections of Microorganisms (BCCM) as T-Rex-293-hmGlu1a-pcDNA4/TO clone on Jun. 24, 2004. In a third aspect the present invention provides a method to identify compounds capability to modulate the activity of a metabotropic glutamate receptor said method comprising the steps of; contacting the aforementioned cell line with the compound to be tested, and determining the effect of said test compound on the metabotropic glutamate receptor activity. The effect on the metabotropic glutamate receptor activity is typically determined by assessing the change in intracellular calcium, in particular using a fluorescent dye such as for example fluo-3-AM. It is also an object of the present invention to provide a method to identify a compound capable to interact with a metabotrobic glutamate receptor, in particular with a Group I mGluR receptor, said method comprising the steps of contacting the cells according to the invention with the compounds to be tested under appropriate conditions and determining the binding of said test compounds to the cells.