Comparison of immunocytochemical estrogen receptor assay, estrogen receptor enzyme immunoassay, and radioligand-labeled estrogen receptor assay in human breast cancer and uterine tissue

Journal Article · Fri Aug 01 00:00:00 EDT 1986 · Cancer Res.; (United States)

OSTI ID:5098047

Heubner, A; Beck, T; Grill, H J; Pollow, K

Determination of estrogen receptor content in 82 breast cancer specimens with immunocytochemical estrogen receptor assay (ER-EIA) (Abbott) was compared with our routinely used binding assay using /sup 125/I-estradiol as radioligand with Scatchard plot analysis of the binding data. Although the estrogen receptor content measured with the ER-EIA was approximately 2-fold higher compared with the binding assay, the immunochemical method proved to be a useful alternative for estrogen receptor determination. Furthermore, it is possible to detect estrogen receptors in FPLC Superose 12 (size exclusion column) eluates or in the fractions obtained after sucrose density centrifugation using the ER-EIA. Forty breast cancer samples were analyzed utilizing the immunocytochemical technique (ER-ICA) for visualization of the estrogen receptor content in frozen tumor tissues in relationship to the quantitative results obtained with the ER-EIA assay. Specific staining for estrogen receptor was confined only to the cell nucleus, was distributed irregularly among the tumor cells, and was variable in intensity. The staining intensity and the percentage of positively stained cells increased with increasing level of cytosolic estrogen receptor. In 27 of 40 cases the immunocytochemical results correlated well with the ER-EIA assay. Nine cases were ER-ICA negative with positive ER-EIA, and four were ER-ICA positive with negative ER-EIA.

• Research Organization: Johannes Gutenberg Univ., Mainz, Germany, F.R.
• OSTI ID: 5098047
• Journal Information: Cancer Res.; (United States), Journal Name: Cancer Res.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
ESTROGENS
RECEPTORS
ENZYME IMMUNOASSAY
CARCINOMAS
IODINE 125
LABELLED COMPOUNDS
MAMMARY GLANDS
TUMOR CELLS
ULTRACENTRIFUGATION
UTERUS
ANIMAL CELLS
BETA DECAY RADIOISOTOPES
BODY
CENTRIFUGATION
DAYS LIVING RADIOISOTOPES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
FEMALE GENITALS
GLANDS
HORMONES
IMMUNOASSAY
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOTOPES
MEMBRANE PROTEINS
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANS
PROTEINS
RADIOISOTOPES
SEPARATION PROCESSES
STEROID HORMONES
550201* - Biochemistry- Tracer Techniques