Fusion of spleen cells, from mice immunized against the human hormone-dependent breast cancer cell line ZR-75-1, with mu rine myeloma cells resulted in the establishment of a hybridoma cell line, HY59-H10 (H59). The purified monoclonal IgM produced by the hybridoma reacts with the most differentiated human breast tumor cell lines but not with cells derived from normal breast secretions or with numerous other malignant cell lines. Of 106 biopsy specimens exam ined, H59 bound to 54% of malignant breast specimens, to 83% of fibroadenomas, and to 82% of specimens containing fibrocystic dis ease. Binding could not be detected in uninvolved breast tissue.
ASJC Scopus subject areas
- Cancer Research