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Utilization of Microarrayed Compound Screening (µARCS) to Identify Inhibitors of p56lck Tyrosine Kinase

Abbott Laboratories, Global Pharmaceutical Research Development, Abbott Park, IL

Julie Wilkins

Abbott Laboratories, Global Pharmaceutical Research Development, Abbott Park, IL

Caroline David

Abbott Laboratories, Global Pharmaceutical Research Development, Abbott Park, IL

James Kofron

Abbott Laboratories, Global Pharmaceutical Research Development, Abbott Park, IL

Yong Jia

Abbott Bioresearch Center, Worcester, MA

Gavin C. Hirst

Abbott Bioresearch Center, Worcester, MA

David J. Burns

Abbott Laboratories, Global Pharmaceutical Research Development, Abbott Park, IL

Usha Warrior

Abbott Laboratories, Global Pharmaceutical Research Development, Abbott Park, IL usha.warrior{at}abbott.com

Protein tyrosine kinases play critical roles in cell signaling and are considered attractive targets for drug discovery. The authors have applied µARCS (microarrayed compound screening) technology to develop a high-throughput screen for finding inhibitors of the p56^lck tyrosine kinase. Initial assay development was performed in a homogeneous time-resolved (LANCE^TM) format in 96-well microplates and then converted into the gel-based µARCS format. The µARCS methodology is a well-less screening format in which 8640 compounds are arrayed on a microplate-sized piece of polystyene and subsequently assayed by placing reagents cast in agarose gels in contact with these compound sheets. A blotting paper soaked with adenosine triphosphate is applied on the gel to initiate the kinase reaction in the gel. Using this screening methodology, 300,000 compounds were screened in less than 40 h. Substantial reagent reduction was achieved by converting this tyrosine kinase assay from a 96-well plate assay to µARCS, resulting in significant cost savings. (Journal of Biomolecular Screening 2004: 12-21)

Key Words: protein tyrosine kinases • drug discovery • microarrayed compound screening (µARCS) • high-throughput screening

Journal of Biomolecular Screening, Vol. 9, No. 1, 12-21 (2004)
DOI: 10.1177/1087057103259667


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