Human Cytokeratin Fragment Antigen 21-1 (CYFRA21-1) ELISA Kit

CYFRA 21-1 is a soluble fragment of cytokeratin 19 released into circulation by epithelial tumor cells and is widely used in oncology research as a serum-based biomarker for non-small cell lung cancer (NSCLC). This Assay Genie ELISA Kit provides a quantitative colorimetric assay platform for measuring CYFRA 21-1 levels across multiple human specimen types, including saliva and tissue homogenates, supporting studies into disease progression, therapy monitoring, and biomarker discovery in epithelial malignancies. The microplate-based format, paired with a complete reagent set and ready-to-use protocols, is intended for in vitro research use only and supports laboratory workflows in cancer biomarker investigation, immunohistochemistry follow-up studies, and ELISA-based diagnostic development.