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Carcinoembryonic antigen (CEA) describes a set of highly-related glycoproteins involved in cell adhesion. CEA is normally produced in gastrointestinal tissue during fetal development, but the production stops before birth. Consequently, CEA is usually present at very low levels in the blood of healthy adults (about 2–4 ng/mL). [2]
In cats, the antibodies are already present in the mother's blood before parturition. The blood group antigens are similar in structure to the antigen of a common bacteria in the gut of cats leading to antibody formation. Kittens obtain the majority of their immune response from the colostrum, and are not born with a strong immune response.
n/a Ensembl ENSG00000105388 n/a UniProt P06731 n/a RefSeq (mRNA) NM_001291484 NM_001308398 NM_004363 n/a RefSeq (protein) NP_001278413 NP_001295327 NP_004354 n/a Location (UCSC) Chr 19: 41.71 – 41.73 Mb n/a PubMed search n/a Wikidata View/Edit Human Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) also known as CD66e (C luster of D ifferentiation 66e), is a member of the ...
Carcinoembryonic antigen-related cell adhesion molecule 1 (biliary glycoprotein) (CEACAM1) also known as CD66a (Cluster of Differentiation 66a), is a human glycoprotein, and a member of the carcinoembryonic antigen (CEA) gene family.
Blood tests for tumor markers, such as carcinoembryonic antigen and carbohydrate antigen may be ordered, as their levels correlate to extent of metastasis, especially to the liver, and the cure rate. [citation needed] Staging may not be complete until after surgery.
Another example is carcinoembryonic antigen, which is elevated in people with colon cancer and other tumors. Other oncofetal antigens are trophoblast glycoprotein precursor [1] and immature laminin receptor protein (also known as oncofetal antigen protein). Oncofetal antigens are promising targets for vaccination against several types of cancers.
Carcinoembryonic antigen peptide-1 is a nine amino acid peptide fragment of carcinoembryonic antigen (CEA), a protein that is overexpressed in several cancer cell types, including gastrointestinal, breast, and non-small-cell lung.
Besides, the existence of blood-testis barrier and the lack of human leukocyte antigen (HLA) class I expression on the surface of germ cells prevent the immune system interacting with CT antigens proteins and recognizing it as invading structures. Thus, CT antigens can be regarded as essentially tumor-specific targets when they are expressed in ...