The natural‐killer‐cell‐associated HNK‐1 (Leu‐7) antibody reacts with hypertrophic and malignant prostatic epithelium

While using the natural killer (NK) cell-associated HNK-1 antibody in a panel of hematopoietic cell markers, the authors found that metastatic tumor cells in the bone marrow of a patient with disseminated prostatic carcinoma stained strongly with this antibody using an indirect immunofluorescence technique. More than 50% of cells from the patient's prostate also reacted with HNK-1. Subsequent study of frozen sections of prostate tissue from …