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Ki-M1P as a marker for microglia and brain macrophages in routinely processed human tissues by Werner Paulus; Wolfgang Roggendorf; Thomas Kirchuer is a Medicine article available to read on EtoBox.

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The monoclonal antibody Ki-M1P recognizes a formalin/paraffin-resistant differentiation epitope of monocytes and their macrophage derivatives [Radzun et al., Lab Invest 65:306, 1991]. To evaluate its usefulness for neuropathology, we examined a variety of routinely processed tissues using immunohistochemistry. In normal brains, positivity was restricted to ramified microglial cells. Intense labeling of macrophages, ramified and ameboid microglial cells, and rod cells was seen in brains with various degenerative and inflammatory disorders. Astrocytes were negative as determined by double-immunofluorescence labeling using Ki-M1P and anti-glial fibrillary acidic protein (GFAP). Histiocytic lesions (histiocytosis X, xanthogranulomas, granulomatous inflammation) were immunopositive. Among 107 tumors, reactivity of Ki-M1P was observed with some schwannoma and meningioma tumor cells. In addition to macrophages, most gliomas contained small, elongated Ki-M1P-positive cells, which were negative for GFAP. Positivity was also found in two glioblastoma cell lines. Immunoblotting performed on spleen, meningioma and glioblastoma specimens revealed one to three bands in the range of 110 to 130 kD

Who reads Ki-M1P as a marker for microglia and brain macrophages in routinely processed human tissues?

Author

Werner Paulus; Wolfgang Roggendorf; Thomas Kirchuer

Publisher

Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0001-6322)

Published

1992

Language

EN

Field

Medicine (Life Sciences)