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  • Glucocorticoids are widely used drugs in human pharmacotherapy. There is an increasing demand for tools allowing detection of the ligands for glucocorticoid receptor (GR), with regard to pre-clinical drug testing and environmental applications. We constructed human luciferase reporter gene cell line AZ-GR derived from HeLa human cervix carcinoma cells, which were stably transfected with reporter plasmid containing three copies of glucorticoid response element (GRE) upstream of luciferase reporter gene. We isolated five dexamethasone-responsive clones, and we further characterized two most responsive ones (AZ-GR). Dose-response analyses were performed with 22 different natural and synthetic steroids and the values of EC50 were calculated. AZ-GR cells displayed high specificity and sensitivity to glucocorticoids, very low responsiveness to mineralocorticoids, but no responsiveness to estrogens, gestagens or androgens. Time-course analyses revealed that AZ-GR cells allow detection of GR activators soon after 14 h of the treatment (6-10-fold induction by 100 nM dexamethasone). Functionality of AZ-GR cells was not affected with cryopreservation. Generated reporter gene cell lines fully maintained responsiveness to glucocorticoids for 32 days in the culture and over 16 passages without significant alterations. The sensitivity of the assay allows high throughput format using 96-well plates.
  • Glucocorticoids are widely used drugs in human pharmacotherapy. There is an increasing demand for tools allowing detection of the ligands for glucocorticoid receptor (GR), with regard to pre-clinical drug testing and environmental applications. We constructed human luciferase reporter gene cell line AZ-GR derived from HeLa human cervix carcinoma cells, which were stably transfected with reporter plasmid containing three copies of glucorticoid response element (GRE) upstream of luciferase reporter gene. We isolated five dexamethasone-responsive clones, and we further characterized two most responsive ones (AZ-GR). Dose-response analyses were performed with 22 different natural and synthetic steroids and the values of EC50 were calculated. AZ-GR cells displayed high specificity and sensitivity to glucocorticoids, very low responsiveness to mineralocorticoids, but no responsiveness to estrogens, gestagens or androgens. Time-course analyses revealed that AZ-GR cells allow detection of GR activators soon after 14 h of the treatment (6-10-fold induction by 100 nM dexamethasone). Functionality of AZ-GR cells was not affected with cryopreservation. Generated reporter gene cell lines fully maintained responsiveness to glucocorticoids for 32 days in the culture and over 16 passages without significant alterations. The sensitivity of the assay allows high throughput format using 96-well plates. (en)
Title
  • Construction and characterization of a reporter gene cell line for assessment of human glucocorticoid receptor activation
  • Construction and characterization of a reporter gene cell line for assessment of human glucocorticoid receptor activation (en)
skos:prefLabel
  • Construction and characterization of a reporter gene cell line for assessment of human glucocorticoid receptor activation
  • Construction and characterization of a reporter gene cell line for assessment of human glucocorticoid receptor activation (en)
skos:notation
  • RIV/61989592:15310/12:33142474!RIV13-MSM-15310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GAP304/10/0149), P(GAP503/10/0579), P(GBP303/12/G163), S
http://linked.open...iv/cisloPeriodika
  • 5
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 128518
http://linked.open...ai/riv/idVysledku
  • RIV/61989592:15310/12:33142474
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Cell line; Gene reporter assay; Glucocorticoids; Glucocorticoid receptor (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [D199B2B84637]
http://linked.open...i/riv/nazevZdroje
  • European Journal of Pharmaceutical Sciences
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 47
http://linked.open...iv/tvurceVysledku
  • Dvořák, Zdeněk
  • Novotná, Aneta
  • Pávek, Petr
http://linked.open...ain/vavai/riv/wos
  • 000313385100006
issn
  • 0928-0987
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.ejps.2012.10.003
http://localhost/t...ganizacniJednotka
  • 15310
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