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  • Title: Fluoride resistant alpha-naphthyl acetate esterase and combined enzyme histochemistry in the study of normal and pathologic lymphoid tissues.
    Author: Chilosi M, Menestrina F, Pizzolo G, Maconi A, Iannucci A, Bonetti F, Fiore-Donati L.
    Journal: Basic Appl Histochem; 1981; 25(1):39-50. PubMed ID: 6973339.
    Abstract:
    Alpha-Naphthyl acetate esterase (ANAE) and fluoride resistant alpha-naphthyl acetate esterase (FRANAE) have been compared as histochemical methods to identify T lymphocytes in sections of normal and pathological human lymphoid tissues. In addition, the FRANAE method was combined with alkaline phosphatase (ALP) in order to simultaneously evaluate the relationship between T lymphocytes and fibroblastic reticular cells (ALP) positive). The "dot like" esterase positivity of T lymphocyte was better evaluated by using FRANAE when compared to ANAE because of fluoride inhibitor of the strong esterase activity of dendritic cells and most macrophages. The combined ALP-FRANAE method clearly demonstrated a large number of fibroblastic reticular cells within the T-areas in various normal and pathological tissues such as hyperplastic lymph nodes and especially in the lymph nodes and spleens from patients with Hodgkin's disease.
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