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The methodology of enumeration of T cell subsets in humans is well established and has widespread clinical application. Sequential monitoring of lymphocyte subsets in small animals requires a consistent and reliable methodology for staining and enumerating lymphocyte populations. The optimal...
We have detected formation of stable associations, or conjugates, between fluorescein diacetate‐ (FDA) stained human natural killer (NK) cells and Hoechst 33342‐ (HO342) stained tumor cells by dual laser flow cytometry. Conjugates in mixtures of effectors and targets emitted both green (FDA)...
Using principles from the theory of mathematical morphology, a semiautomatic analysis of the size and shape of cell nuclei on tissue sections was carried out on a Leitz Texture Analysis System (Leitz‐TAS). The four parameters proposed here are more discriminatory than conventional shape...
We report on an easy and reliable method for the enumeration of the typical cells present in the blood, bone marrow, and spleen of patients with hairy cell leukemia. Samples of five patients were analyzed. In three patients, the hairy cells were very accurately followed during treatment with...
A multidimensional slit‐scan flow system was developed for the automated recognition of abnormal cells derived from cancer of the uterine cervix and its precursors. It provides great sensitivity in both its ability to recognize cellular abnormality and to deal with the myriad potential causes...
A new fluorescent stain has been developed for detecting cloned β‐galactosidase activity in individual cells of Saccharomyces cerevisiae by flow cytometry. The staining reaction is based on enzymatic cleavage of α‐naphthol‐β‐D‐galactopyranoside by intracellular β‐galactosidase and...
Fifty‐five human renal cell carcinomas, removed by nephrectomy, were classified using flow cytometry and histology. The parameters obtained by flow cytometry were DNA index, fractions of cells in the phases, and fractions of tumor cells versus normal cells. From histology, the routine...
Phagocytosis of fluorescent microspheres by HL‐60 promyelocytic leukemia cells following induction of differentiation with dimethyl sulfoxide (DMSO) was monitored using flow cytometry. Initiation of phagocytic capability following initiation of differentiation with 1.5% DMSO coincided with the...
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