Used in medical diagnostics to detect tumor metabolism by measuring M2-PK enzyme activity in blood or tissue samples. Helps in early cancer screening, especially for colorectal, pancreatic, and renal cancers. The kit enables quantitative analysis, supporting clinical research and monitoring of tumor progression or response to therapy. Widely used in laboratories due to its sensitivity and specificity for the M2 isoform of pyruvate kinase, which is overexpressed in rapidly dividing cancer cells.