Tumor marker detection



Cytokeratin 19 fragment


Cytokeratin 19 fragment

Cytokeratin 19 fragment(CYFRA21-1)Assay Kit(Chemiluminescence method)

【Packing Specification】
96 per person / box

【Registration Certificate No. of Medical Device / Technical Requirement No. of Product】

【Sample Requirements】
Patient specimens need no special treatment. Whole blood specimens are collected by conventional medical techniques, and serum is drawn after centrifugation for detection.

【Storage Conditions】
This product is stored at 2 ℃ ~ 8 ℃

12 months


This kit is used for quantitative detection of cytokeratin 19 fragment (CYFRA21-1) in human serum in vitro. Cytokeratin is the structural protein of epithelial cells. So far, 20 different cytokeratins have been found. Because of their special distribution, cytokeratin has become the index of tumor pathology. Complete cytokeratin peptides are difficult to dissolve, but the dissolved fragments can be detected in serum. Slight increase of CYFRA21-1 was occasionally seen in patients with benign liver disease and renal failure. CYFRA21-1 is mainly used to monitor the course of NSCLC. The significant increase of CYFRA21-1 level in blood indicates that the tumor has advanced stage or poor prognosis.