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Multiplexing Nuclear Receptors for Agonist Identification in a Cell-Based Reporter Gene High-Throughput Screen

Benjamin A. Turner

Christian N. Parker

Discovery Technologies, Pharmacia Corp., Kalamazoo, MI.

Jannika Meier

Deepak S. Lala

Transcriptional Biology, Pharmacia Corp., St. Louis, MO.

Paul H. Lee

Discovery Technologies, Pharmacia Corp., Kalamazoo, MI. paul.h.lee{at}pharmacia.com

High-throughput screening (HTS) has become an essential part of the drug discovery process. Due to the rising requirements for both data quality and quantity, along with increased screening cost and the demand to shorten the time for lead identification, increasing throughput and cost-effectiveness has become a necessity in the hit identification process. The authors present a multiplexed HTS for 2 nuclear receptors, the farnesoid X-activated receptor and the peroxisome proliferator-activated receptor delta in a viable cell-based reporter gene assay. The 2 nuclear receptors were individually transfected into human hepatoma cells, and the transient transfected cell lines were pooled for the multiplexed screen. Hits identified by the multiplexed screen are similar to those identified by the individual receptor screens. Furthermore, the multiplexed screen provides selectivity information if ligands selective for one and not the other receptor are one of the hit criteria. The data demonstrate that multiplexing nuclear receptors can be a simple, efficient, cost-effective, and reliable alternative to traditional HTS of individual targets without compromising data quality. (Journal of Biomolecular Screening 2003:239-246)

Key Words: high-throughput screening • farnesoid X-activated receptor • peroxisome proliferator-activated receptor delta • multiplexed assays • nuclear receptors

Journal of Biomolecular Screening, Vol. 8, No. 3, 239-246 (2003)
DOI: 10.1177/1087057103008003001


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