A Novel High-Throughput FLIPR Tetra-Based Method for Capturing Highly Confluent Kinetic Data for Structure-Kinetic...

Area of Science:

• Biochemistry
• Pharmacology
• Drug Discovery

Background:

• Small molecule target engagement is crucial for physiological outcomes.
• Traditionally, thermodynamics guided structure-activity relationships (SAR), but kinetics are now recognized as critical.
• High-throughput kinetic data acquisition is limited by traditional methods, delaying key decisions in drug discovery.

Purpose of the Study:

• To develop a high-throughput method for biochemical kinetic data acquisition.
• To enable early-stage structure-kinetic relationship (SKR) analysis for drug candidate optimization.
• To overcome limitations in traditional kinetic data collection for time-course analysis.

Main Methods:

• Utilized fluorescent imaging plate reader (FLIPR) with charge-coupled device (CCD) camera technology.
• Designed and optimized assays for kinetic data collection with small time intervals.
• Collected confluent time-course data for kinase targets and analyzed kinetic parameters.

Main Results:

• Demonstrated FLIPR's potential for high-throughput kinetic data generation.
• Successfully collected time-course data for kinase targets, enabling SKR-guided medicinal chemistry.
• Showcased rapid kinetic data analysis for parameter estimation, including a covalent inhibition case study.

Conclusions:

• The FLIPR-based approach enables rapid kinetic studies on hundreds of compounds weekly.
• This method facilitates early-stage project decisions driven by kinetic data.
• Accelerates the drug discovery process by integrating kinetic insights earlier.