naphthylbutyrate esterase

08/01/2016 - "A peripheral blood smear was stained with alpha-naphthyl butyrate esterase to discriminate tumor cell fragments from platelets. "
10/01/1985 - "The tumors of patients with and without metastases at the time of resection of the primary tumor contained different (P = 0.0314) concentrations of cells with histochemically demonstrable alpha-naphthylbutyrate esterase in SCM but not in SRM. "
10/01/1985 - "In contrast to our previous study of human pulmonary alveolar macrophages, examination of sections stained sequentially for these phenotypic markers that are commonly used for the identification of macrophages in tumors revealed numerous cells in the same sections that expressed histochemically demonstrable acid phosphatase (red) but not alpha-naphthyl butyrate esterase (brown) and vice versa. "
10/01/1985 - "In contiguous 1- to 2-micron sections, morphologically macrophage-like cells with histochemically demonstrable acid phosphatase and cells with histochemically demonstrable alpha-naphthylbutyrate esterase were found to be present in different concentrations both in SCM (P less than 0.01) and in SRM (P less than 0.01); i.e., these phenotypic markers appear to identify different subpopulations of macrophages in tumors. "
02/01/1979 - "Acid phosphatase activity was a consistent marker for the T-cell malignancies, some of which also revealed alpha-naphthyl butyrate esterase activity. "

10/01/1983 - "This paper describes a cytochemical technique for alpha-naphthyl butyrate esterase demonstration in monocytes obtained from peripheral blood of normal subjects, of a patient with reactive monocytosis and of a patient with myelomonocytic leukemia. "
06/01/2002 - "Laboratory findings showed marked leukocytosis with 85% leukemia cells, which were positive for alpha-naphthyl butyrate esterase. "
01/01/1982 - "Although surface markers characteristic of monocytic leukemia persisted, a deficiency of peroxidase in the granules of this patient's monocytes was observed as well as loss of alpha-naphthyl butyrate esterase staining during transformation."
04/01/1991 - "However, PAS-positive lymphoblastic leukemias were negative with the other cytochemical stains: myeloperoxidase, Sudan black B, and alpha-naphthyl butyrate esterase. "
04/01/1991 - "Thus, a positive PAS stain, in combination with negative myeloperoxidase, Sudan black B, and alpha-naphthyl butyrate esterase stains, continues to have a diagnostic role in the distinction between lymphoblastic and myeloblastic leukemia, and greater immunologic sophistication serves to support this position."

04/01/1991 - "The sensitivity of a cytochemical-staining combination of PAS positivity and myeloperoxidase, Sudan black B, and alpha-naphthyl butyrate esterase negativity in defining cases of lymphoblastic leukemia remained at 52%; however, the specificity of this combination for lymphoblastic leukemia was 100% (no false positives). "
06/01/1979 - "Cytochemistry of the blast cells demonstrated only focal alpha-naphthyl acetate and alpha-naphthyl butyrate esterase activity and focal coarse granular beta-glucuronidase activity, a pattern usually associated with acute lymphocytic leukemia. "
05/01/1981 - "Cytochemical, ultrastructural, and terminal deoxynucleotidyl transferase determinations in three cases of acute lymphocytic leukemia with azurophilic granules and punctate alpha-naphthyl acetate esterase (ANAE), alpha-naphthyl butyrate esterase (ANBE), and acid phosphatase (AP) activities further described a cytochemical and morphologic variant of acute lymphocytic leukemia. "

10/01/1985 - "The tumors of patients with and without metastases at the time of resection of the primary tumor contained different (P = 0.0314) concentrations of cells with histochemically demonstrable alpha-naphthylbutyrate esterase in SCM but not in SRM. "
11/01/1981 - "The activities of alpha-naphthyl butyrate esterase, non-specific esterase, indoxyl esterase and acid phosphatase were studied histochemically in macrophages in cultures and in tissue sections of primary tumours and metastases of Lewis lung carcinoma (3LL). "

08/01/1994 - "The lymphoma cells revealed diffuse positivity for acid phosphatase and alpha naphthyl butyrate esterase, and were also positive for intracytoplasmic IgM on occasion, and mostly for proliferating cell nuclear antigen. "
06/01/1983 - "Forty-seven human leukaemia/lymphoma cell lines belonging to myelocytic, monocytic, non-T/non-B, T-, and B-lineage and representing different levels of maturation as well as fresh cells from normal and leukaemic subjects were examined for immunological markers and cytochemically for acid phosphatase, alkaline phosphatase, alpha-naphthyl acetate esterase (pH 5.8 and 8.0), alpha-naphthyl butyrate esterase (pH 5.8 and 8.0), non-specific esterase, chloroacetate esterase, chymotrypsin-like protease, deoxyribonuclease II, beta-glucuronidase, sudan black, and periodic acid Schiff's staining. "