Used in biomedical research to quantify levels of phosphoinositide 3-kinase (PI3K) in human samples, this ELISA kit supports studies related to cell signaling pathways involved in cell growth, proliferation, and survival. It is widely applied in cancer research, metabolic disorders, and immunology to assess PI3K activation states and evaluate the effects of therapeutic agents targeting the PI3K pathway. The assay enables high-throughput, accurate measurement from cell lysates, serum, or plasma, making it valuable for both basic research and drug development.