A system for receptor functional analysis based on c-fos mRNA expression: Analysis of GnRH receptors as a test system
Journal of Biochemical and Biophysical Methods, ISSN: 0165-022X, Vol: 70, Issue: 3, Page: 349-353
2007
- 2Citations
- 4Captures
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Article Description
This report describes the establishment of a system for assessing receptor activation by RT-PCR-based detection of c-fos mRNA induction. In this system, COS-7 cells were transiently transfected with GnRH receptor expression plasmid, and ligand-induced c-fos expression was quantified by the RT-competitive PCR method. The results were compared with those of a conventional inositol phosphate (IP) assay. Changes in c-fos expression levels were observed in a dose- and ligand-dependent manner. Similar tendencies were observed in ligand selectivity between c-fos expression and IP production. The novel system developed and established in the present study is sensitive by using RT-PCR and convenient because it requires only basic methods of cell culture and molecular biology. It also has the merit that it does not need any specific measuring devices or radioactive substances. Given the ability of c-fos to respond to diverse stimuli, the present system may be applicable for various receptors for bioactive substances in addition to GnRH receptor, and useful for various purposes including screening ligands for orphan receptors.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0165022X06001394; http://dx.doi.org/10.1016/j.jbbm.2006.08.003; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33847622084&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/16979242; https://linkinghub.elsevier.com/retrieve/pii/S0165022X06001394; https://dx.doi.org/10.1016/j.jbbm.2006.08.003
Elsevier BV
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