Name: CA125 (Mucin-16) Antibody (Clone OC125)
Description and applications: CA 125 (Cancer Antigen 125) is a mucin-like glycoprotein with a molecular weight greater than 200 kD. OC 125 recognizes an epitope that is considered to be a peptide in nature. Anti-CA-125 antibody reacts with epitheloid malignancies of the ovary, papillary serous carcinoma of the cervix, adenocarcinoma of the endometrium, clear cell adenocarcinoma of the bladder, and epitheloid mesothelioma. The antigen is formalin resistant, permitting the detection of ovarian cancer by immunohistochemistry, although serum assays for this protein are widely used to monitor ovarian cancer. CA 125 is located on the surface of ovarian tumor cells with essentially no expression in normal adult ovarian tissue. CA125 is also found in sera of patients with pancreatic, liver, colon, and other adenocarcinomas. CA 125 is found in the epithelial cells of normal colon, gall bladder, mammary gland, and stomach. Normal breast, liver, skin, and spleen are usually negative. When used with other antibodies, CA 125 antibodies are useful for the separation of colonic carcinoma from ovarian endometroid carcinoma in the pelvis and distinguishing renal clear cell carcinoma from clear cell carcinoma of the ovary and other Mullerian tumors.
Composition: anti-human CA125 mouse monoclonal antibody purified from ascites. Prepared in 10mM PBS, pH 7.4, with 0.2% BSA and 0.09% sodium azide.
Immunogen: Ovarian cancer cell line OVCA433 derived from patient with serous papillary cystadenocarcinoma.