Hg5ln hpxr cell line

HG5LN were generated by transfection of cervical cancer HeLa cells with the (GAL4RE)5-betaGlobin-Luciferase-SV40-Neomycin plasmid.
HG5LN GAL4-hPXR cells were generated by transfection of HG5LN cells with the plasmid pSG5-GAL4-human PXR-puromycin.

The plasmid (GAL4RE)5-betaGlob-Luc-SVNeo contains a luciferase gene driven by a pentamer of yeast activator GAL4 binding sites in front of beta-globin promoter and a neomycin phosphotransferase gene under the control of SV40 promoter.
The pSG5-puro plasmid pSG5-human GAL4-hPXR-puromycin enables to express the DNA binding domain of the yeast activator GAL4 (GAL4 DBD) followed by the ligand binding domain of the human pregnane X receptor (hPXR LBD). Puromycin N-acetyl transferase selection marker expression confers resistance to puromycin.


Interest / Relevance: These cells enable to measure the hPXR (full and partial agonism, antagonism) of pharmaceuticals, environmental compounds
These cells enable to measure the hPXR activity of environmental (water, sediments), human (blood, urine adipose tissue) or food (water, vegetables, meat) samples.

SR12813 EC50 137 nM
Keywords: hPXR, luciferase, metabolism, clearance, colon and liver cancer, pharmaceutical and environmental chemicals
Scientist's name: Patrick BALAGUER
Patrick Balaguer
Publications:
Lemaire G Benod C Nahoum V Pillon A Boussioux AM Guichou JF Subra G Pascussi JM Bourguet W Chavanieu A Balaguer P. Discovery of a highly active ligand of human pregnane x receptor: a case study from pharmacophore modeling and virtual screening to in vivo biological activity. Mol Pharmacol. 2007 Sep72(3):572-81.
Delfosse V
Dendele B Huet T Grimaldi M Boulahtouf A Gerbal-Chaloin S Beucher B Roecklin D Muller C Rahmani R Cavaillès V Daujat-Chavanieu M Vivat V Pascussi JM Balaguer P* Bourguet W. Synergistic activation of human pregnane X receptor by binary cocktails of pharmaceutical and environmental compounds. Nat Commun. 2015 Sep 36:8089.
Delfosse V
Granell M Harrus D Huet T Bourguet M Gardia-Parège C Chiavarina B Grimaldi M Le Mével S Gruszczyk J Huang D Blanc P Demeneix B Cianferani S Fini JB Balaguer P* Bourguet W. Mechanistic insights into the synergistic activation of the RXR–PXR heterodimer by endocrine disruptor mixtures. PNAS 2021 Jan 5118(1):e2020551118.

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