Christine A. Williams

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About

Christine A. Williams is a pharmacologist whose research has made significant contributions to the field of G-protein coupled receptor (GPCR) pharmacology, with a particular focus on high-throughput screening methodologies and cellular assay development for drug discovery applications. Williams is perhaps best known for her influential 2003 work on measuring intracellular calcium fluxes in high-throughput mode, which has garnered 58 citations and established critical methodological frameworks for how the pharmaceutical industry characterizes GPCR activation. This contribution proved transformative for both pharmacological profiling of GPCRs and the identification of novel surrogate ligands, helping to democratize real-time calcium flux measurement beyond its traditional limitations. Building on this foundation, her 2005 paper examining how cell-based assays can distinguish between compound affinity and efficacy — accumulating 19 citations — addressed a fundamental conceptual challenge in drug screening. By interrogating when and how functional assays should be deployed alongside biochemical high-throughput screening programmes, Williams helped sharpen the field's thinking about what cellular assays actually measure and when each approach is most valuable. Her body of work reflects a career dedicated to bridging rigorous pharmacological science with practical drug discovery, making her research particularly relevant to both academic and industrial researchers working at the intersection of receptor biology and therapeutic development.