Biomaterial Database

[Studies on carcinoembryonic antigen (CEA), lactate dehydrogenase (LDH), and LDH isozymes in the tissue of colorectal carcinoma]. 1983

S Ono

Tissue carcinoembryonic antigen (CEA), lactate dehydrogenase (LDH) and LDH isozymes were measured to assess as tumor markers of colorectal cancer. Tissue samples were collected from carcinoma and the entire layers of normal colorectum at the distance of 1, 2, 4, 6 and 8 cm from the edge of carcinoma. The mean CEA content in cancer tissue was 18143 ng/g and the elevation of CEA content was found in normal tissue within 6 cm from the edge of carcinoma comparing to that in control materials, gradually decreased as the distance from carcinoma increased. LDH activity in cancer tissue was very high and its gradual decrease in normal tissue surrounding tumor with the distance from carcinoma was recognized. LDH isozyme ratio (LDH4 + LDH5/LDH1 + LDH2) and H subunit % (LDH1 + 3/4LDH2 + 1/2LDH5 + 1/4LDH) in cancer tissue were obviously different from those of control materials, LDH isozyme ratio in normal tissue within 4 cm from the edge of carcinoma and H subunit % within 6 cm showed the significant difference to those in control materials. The author concludes that the increase of tissue CEA content, LDH activity and the deviation of LDH isozymatic pattern in normal tissue could be early signs of malignancy before the morphologic changes.

UI	MeSH Term	Description	Entries
D007527	Isoenzymes	Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics.	Alloenzyme,Allozyme,Isoenzyme,Isozyme,Isozymes,Alloenzymes,Allozymes
D007770	L-Lactate Dehydrogenase	A tetrameric enzyme that, along with the coenzyme NAD+, catalyzes the interconversion of LACTATE and PYRUVATE. In vertebrates, genes for three different subunits (LDH-A, LDH-B and LDH-C) exist.	Lactate Dehydrogenase,Dehydrogenase, L-Lactate,Dehydrogenase, Lactate,L Lactate Dehydrogenase
D012004	Rectal Neoplasms	Tumors or cancer of the RECTUM.	Cancer of Rectum,Rectal Cancer,Rectal Tumors,Cancer of the Rectum,Neoplasms, Rectal,Rectum Cancer,Rectum Neoplasms,Cancer, Rectal,Cancer, Rectum,Neoplasm, Rectal,Neoplasm, Rectum,Rectal Cancers,Rectal Neoplasm,Rectal Tumor,Rectum Cancers,Rectum Neoplasm,Tumor, Rectal
D002272	Carcinoembryonic Antigen	A glycoprotein that is secreted into the luminal surface of the epithelia in the gastrointestinal tract. It is found in the feces and pancreaticobiliary secretions and is used to monitor the response to colon cancer treatment.	Antigens, CD66e,CD66e Antigen,Antigen, CD66e,Antigen, Carcinoembryonic,CD66e Antigens
D002288	Adenocarcinoma, Mucinous	An adenocarcinoma producing mucin in significant amounts. (From Dorland, 27th ed)	Carcinoma, Colloid,Carcinoma, Mucinous,Adenocarcinomas, Mucinous,Carcinomas, Colloid,Carcinomas, Mucinous,Colloid Carcinoma,Colloid Carcinomas,Mucinous Adenocarcinoma,Mucinous Adenocarcinomas,Mucinous Carcinoma,Mucinous Carcinomas
D003110	Colonic Neoplasms	Tumors or cancer of the COLON.	Cancer of Colon,Colon Adenocarcinoma,Colon Cancer,Cancer of the Colon,Colon Neoplasms,Colonic Cancer,Neoplasms, Colonic,Adenocarcinoma, Colon,Adenocarcinomas, Colon,Cancer, Colon,Cancer, Colonic,Cancers, Colon,Cancers, Colonic,Colon Adenocarcinomas,Colon Cancers,Colon Neoplasm,Colonic Cancers,Colonic Neoplasm,Neoplasm, Colon,Neoplasm, Colonic,Neoplasms, Colon
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000230	Adenocarcinoma	A malignant epithelial tumor with a glandular organization.	Adenocarcinoma, Basal Cell,Adenocarcinoma, Granular Cell,Adenocarcinoma, Oxyphilic,Adenocarcinoma, Tubular,Adenoma, Malignant,Carcinoma, Cribriform,Carcinoma, Granular Cell,Carcinoma, Tubular,Adenocarcinomas,Adenocarcinomas, Basal Cell,Adenocarcinomas, Granular Cell,Adenocarcinomas, Oxyphilic,Adenocarcinomas, Tubular,Adenomas, Malignant,Basal Cell Adenocarcinoma,Basal Cell Adenocarcinomas,Carcinomas, Cribriform,Carcinomas, Granular Cell,Carcinomas, Tubular,Cribriform Carcinoma,Cribriform Carcinomas,Granular Cell Adenocarcinoma,Granular Cell Adenocarcinomas,Granular Cell Carcinoma,Granular Cell Carcinomas,Malignant Adenoma,Malignant Adenomas,Oxyphilic Adenocarcinoma,Oxyphilic Adenocarcinomas,Tubular Adenocarcinoma,Tubular Adenocarcinomas,Tubular Carcinoma,Tubular Carcinomas