Mammalian protein found in Homo sapiens
Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) also known as CD66e (Cluster of Differentiation 66e), is a member of the carcinoembryonic antigen (CEA) gene family.
Functions.
In the literature, CEACAM5 is often used as a synonym for cancer embryonic antigen (CEA), a well-known biomarker of many types of malignancies, such as colorectal cancer and non-small-cell lung cancer. Its primary function in the embryonic intestine and colon tumors is adhesion between epithelial cells. Also, it plays a significant role in the inhibition of differentiation and apoptosis in colon cells. There are evidences that high CEACAM5 expression is firmly associated with the CD133-positive colorectal cancer stem cells. High CEACAM5 expression has also been identified in ~25% of patients with advanced non-squamous (NSq) non-small cell lung cancer (NSCLC) detectable via IHC (immunohistochemistry).
References.
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Further reading.
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External links.
"This article incorporates text from the United States National Library of Medicine, which is in the public domain."