CYFRA 21-1 ELISA
- Regulatory Status
- EU: CE
- Kit size
- 12 x 8
- Method
- ELISA
- Incubation time
- 1 x 1 h, 1 x 15 min
- Standard range
- 0 - 50 ng/mL
- Specimen / Volumes
- 50 µL serum, plasma
- Substrate / isotope
- TMB 450 nm
Cytokeratins are epithelial markers whose expression is not lost during malignant transformation. CYFRA 21-1 is a cytokeratin-19 fragment that is soluble in serum and can be used as circulating tumor marker. Although expressed in all body tissues, its major occurrence is in the lung, particulary in lung cancer tissues. CYFRA 21-1 is a sensitive and specific tumor marker of non-small-cell lung cancer (NSCLC), especially of squamous cell subtype (1,2,3). It also reflects the extent of the disease and has an independent prognostic role along with performance status and disease stage in NSCLC (4,5,6). In addition, detection of serum CYFRA 21-1 allows for identification of high risk patients that may benefit from adjuvant chemotherapy (7), and enables the early detection of progressive disease in recurrent NSCLC (8). Additionally, CYFRA 21-1 has been described as a useful marker for esophageal squamous cell carcinoma (9) and for therapy monitoring of bladder cancer
For concrete data please consult the Instruction for Use in the download box on the top right side.
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Our comprehensive immunoassay portfolio includes a number of specialty diagnostic immunoassays for endocrinology, immunology and autoimmunity, as well as for diagnosis of multiple infectious diseases. We are pioneers and market leaders in saliva diagnostics, with over 40 years of experience supplying a broad portfolio of luminescence- and ELISA-based tests, including our highly acclaimed HMGB1 and MuSK-Ab ELISAs.
And as experts in laboratory automation, we can support our customers with the protocols for open ELISA platforms, such as the Freedom EVOlyzer or Thunderbolt®.
All products are only available for sale to laboratory professionals and may not be available in all countries. Availability and regulatory status may vary across regions depending on local country-specific registration. Please always read and follow the instructions for use.
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As part of the Tecan Group, we have a leading market position in diagnostics and research, with over 40 years of experience in the development, manufacture and supply of enzyme-, radiolabel- and luminescence-based immunoassays.
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