Used in biomedical research to detect and quantify STAT3 protein levels in cell lysates or tissue extracts. Enables researchers to study STAT3 activation in signaling pathways related to inflammation, cell growth, and immune responses. Commonly applied in cancer research, autoimmune disease studies, and drug development to assess the efficacy of therapeutic agents targeting the JAK-STAT pathway. Provides a reliable, high-throughput method for measuring phosphorylated and total STAT3 in experimental models.