John A. Katzenellenbogen

Papers

Total Citations

H-Index

About

John A. Katzenellenbogen is a pioneering figure in chemical biology and nuclear receptor pharmacology, whose work has fundamentally advanced our understanding of hormone action and radiopharmaceutical development. His research centers on the design and synthesis of selective ligands for estrogen and other nuclear hormone receptors, with a major focus on creating imaging agents for positron emission tomography (PET). Among his landmark contributions is the development of 16α-[18F]fluoroestradiol-17β (FES), a PET radiopharmaceutical that enables noninvasive imaging of estrogen receptor expression in breast cancer—a tool now widely used in clinical oncology. His early work on automating radiopharmaceutical synthesis using robotics (49 citations) was groundbreaking for its time. Katzenellenbogen also pioneered proteomic microarray approaches to study nuclear hormone receptor pharmacology, revealing ligand selectivity and heterodimer functionality (41 citations). With over 400 publications and an h-index exceeding 100, his impact spans from fundamental receptor biology to translational cancer imaging. A member of the National Academy of Sciences, he has received numerous awards for his contributions to medicinal chemistry and endocrinology, cementing his legacy as a leader in the field.