title: Serum and tissue measurements of CA72-4 in patients with endometrial carcinoma.
abstract: OBJECTIVE
  To evaluate the clinical usefulness of CA72-4 as a serum tumour marker for endometrial carcinoma and to investigate its immunohistochemical localisation in endometrial carcinoma cells.
  
  
  METHODS
  Serum concentrations of CA72-4 were determined in 72 patients with endometrial carcinoma. Immunohistochemical localisation of CA72-4 was investigated using the streptavidin-biotin method, using monoclonal antibodies B72.3 and CC49.
  
  
  RESULTS
  Serum CA72-4 was increased above the cut off value in 31.9% of the patients with endometrial carcinoma. Serum CA72-4 positivity was correlated with depth of myometrial invasion, adnexal metastasis, lymphovascular space involvement, and pelvic and para-aortic lymph node metastasis. Multivariate analysis showed a significant correlation between serum CA72-4 positivity and adnexal metastasis. The serum concentrations of CA125 and CA19-9, which could be tumour markers for endometrial carcinoma, were measured at the same time. In seven of 72 patients increased concentrations of serum CA72-4 were found while those for CA125 and CA19-9 were within the normal ranges; in four of the seven patients the disease had spread beyond the uterus. Immunohistochemical positivity for CA72-4 antigen was 76.9% and occurred in the tumour cell membrane and cytoplasm. There was no significant difference in immunohistochemical positivity between patients with increased CA72-4 and those with normal CA72-4 values.
  
  
  CONCLUSIONS
  The measurement of serum concentrations of CA 72-4 could be useful for predicting and monitoring the progress of disease-for example, extracorporeal spread.
authors.affiliation: Department of Obstetrics and Gynecology, Hokkaido University School of Medicine, Sapporo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Hareyama
authors.forename: N
authors.initials: N
authors.lastname: Sakuragi
authors.forename: S
authors.initials: S
authors.lastname: Makinoda
authors.forename: S
authors.initials: S
authors.lastname: Fujimoto
mesh_terms: D000328:Adult; D000368:Aged; D015295:Antigens, Tumor-Associated, Carbohydrate / Q000097:blood / Q000378:metabolism*; D018394:CA-125 Antigen / Q000097:blood; D018395:CA-19-9 Antigen / Q000097:blood; D016889:Endometrial Neoplasms / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008207:Lymphatic Metastasis; D008875:Middle Aged; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging
chemical_list: D015295:Antigens, Tumor-Associated, Carbohydrate; D018394:CA-125 Antigen; D018395:CA-19-9 Antigen; C083825:CA-72-4 antigen