[Characterization of anti human uterine endometrial cancer antibody (MSN-1) and its usefulness in clinical application].
We have produced a monoclonal antibody (MSN-1), by using our endometrial cancer-cultured cell line (SNG-II) as an immunogen. MSN-1 belongs to the IgM immunoglobulin class and mainly recognized the Lewis carbohydrate moiety. It seldom, reacted immunohistochemically with normal endometrium but with about 90% of endometrial cancer cases. So, we evaluated the effectiveness of its use in clinical application. We studied the relationship between the stage of cancer and reactivity to MSN-1, and that between the reactivity of moderately differentiated endometrial cancer to MSN-1 and a 5-year survival rate. Endometrial cancer with a poor prognosis tended to react poorly to MSN-1, suggesting the possibility that the reactivity to MSN-1 is useful as a new prognostic factor. A study of endometrial hyperplasia revealed that the reactivity to MSN-1 was high in the high risk group (individuals diagnosed as endometrial cancer later). This suggested that the analysis of the expression of the antigen recognized by MSN-1 is useful in selecting the high risk group out of patients with endometrial hyperplasia. Furthermore, we indicated that abnormal expression of the antigen recognized by MSN-1 associated with neoplasia of endometrial cells is useful in developing a new diagnostic method for example our endometrial cell enzyme immunoassay (EmC-EIA) and will be helpful in developing diagnostic approaches, such as missile therapy with a complex of MSN-1 and adriamycin for endometrial cancer.
Tsukazaki
K
K
Dept. of Obstetrics and Gynecology, School of Medicine, Keio University.
Sakuma
Y
Y
Kaneta
Y
Y
Sakayori
M
M
Uchiyama
M
M
Nozawa
S
S
D000911:Antibodies, Monoclonal / Q000276:immunology; D004714:Endometrial Hyperplasia / Q000175:diagnosis; D016889:Endometrial Neoplasms / Q000175:diagnosis* / Q000276:immunology / Q000401:mortality; D005260:Female; D006801:Humans; D007075:Immunoglobulin M / Q000276:immunology; D011379:Prognosis; D012680:Sensitivity and Specificity; D015996:Survival Rate; D014407:Tumor Cells, Cultured
D000911:Antibodies, Monoclonal; D007075:Immunoglobulin M