Aliases:This biomarker is also known as:
- Meconium antigen 100,
- Carcinoembryonic antigen,
- carcinoembryonic antigen-related cell adhesion molecule 5,
CEA is a cell surface glycoprotein that plays a role in cell adhesion and in intracellular signaling. It is a receptor for E.coli Dr adhesins.
There are no datasets associated with this biomarker.
The following organs have data associated with this biomarker…
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Levels of the four proteins (SLPI, TFPI, TFPI2, and TIMP1) were studied in a set of 12 late stage lung cancer serum samples and 12 normal serum samples using the immunoaffinity-MRM methodology. It was found that the immunoaffinity-mass spectrometry-based quantification approach provides a specific and accurate assay for verifying the expression of potential biomarkers in patient serum samples especially for those proteins for which the necessary reagents for ELISA development are unavailable. (From PMID:18388126)
Researchers have developed an immunoaffinity-mass spectrometry-based approach using antibodies to enrich multiple proteins of interest from sera followed by LC-MRM-based quantification. As a proof of concept, it was demonstrated that CEA can be detected and quantified in a subset of patient sera. This is the first reported detection of CEA in sera using a mass spectrometry-based approach in serum samples. This method has allowed quantifying potential protein biomarkers in sera in the low ng/ml range with an acceptable CV. This approach was further applied to potential protein biomarkers discovered from tumor cell lines and tumor tissues. A linear response was obtained from a multiplex spiking experiment in normal human sera for secretory leukocyte peptidase inhibitor (4-500 ng/ml), tissue factor pathway inhibitor (TFPI) (42-1000 ng/ml), tissue factor pathway inhibitor 2 (TFPI2) (2-250 ng/ml), and metalloproteinase inhibitor 1 (TIMP1) (430-1000 ng/ml). (From PMID:18388126)
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CEACAM5 is a member of the carcinoembryonic antigen (CEA) family. The carcinoembryonic proteins are found normally in the blood of a fetus. The CEA proteins are also found in the blood of some people who have certain types of tumors, such as colorectal, pancreas, breast, ovary, or lung. CEA levels are not usually elevated in early cancer, and in some cancers are not elevated at all.
Despite many promising new markers for ovarian cancer, CA125 remains the single best biomarker in the phase II and phase III specimens tested in this study.
No associated publications found.
- HGNC entry for carcinoembryonic antigen-related cell adhesion molecule 5 CEACAM5
- KEGG entry for human carcinoembryonic antigen-related cell adhesion molecule 5
- Protein Reference Sequence for carcinoembryonic antigen-related cell adhesion molecule 5 preproprotein [Homo sapiens]
- UniProtKB/Swiss-Prot entry for P06731 (CEAM5_HUMAN)