Used in cancer research to detect and quantify levels of the M2-PK enzyme, which is often elevated in tumor tissues and bodily fluids of patients with various malignancies. Helps in monitoring tumor metabolism, especially in colorectal, lung, and gastrointestinal cancers. Supports non-invasive cancer screening when used with stool or urine samples. Also applied in metabolic studies to investigate the role of M2-PK in the Warburg effect, where cancer cells favor glycolysis for energy production. Provides a reliable tool for assessing the effectiveness of anticancer therapies targeting metabolic pathways.