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Pathol Res Pract. 1991 Mar;187(2-3):209-13.

Tartrate-resistant, purple acid phosphatase in Gaucher cells of the spleen. Immuno- and cytochemical analysis.

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  • 1Institut für Anatomie, Westfälische Wilhelms-Universität Münster, FRG.


Bioptic material from the spleen of a three-year-old boy with a type 1 Gaucher disease was studied by immuno- and cytochemical methods with special regard to the macrophage-derived Gaucher cells. These cells were positive with PAS and Prussian blue staining, and were immuno-positive with the monoclonal 25 F9 antibody, specific to mature, non-inflammatory macrophages. Large Gaucher cells and their postulated small precursor cells revealed strong tartrate-resistant acid phosphatase (TRAP) and unspecific carboxylate esterase activities. Using a polyclonal antibody to bovine spleen purple phosphatase, a lysosomal TRAP from splenic macrophages, the TRAP of the Gaucher cells could be identified to belong to this group of iron-containing, purple acid phosphatases immunocytochemically. The origin of splenic Gaucher cells from blood monocytes and their further development are discussed.

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