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Related Experiment Videos

Alkaline phosphatase positive lymphoma.

M L Geerts, G Burg, C Schmoeckel

    Dermatologica
    |January 1, 1984
    PubMed
    Summary

    Alkaline phosphatase (AP) activity was observed in some B cell lymphomas and benign skin conditions. Further research is needed to link AP activity to specific B cell types in differentiation.

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    Area of Science:

    • Dermatology
    • Oncology
    • Immunohistochemistry

    Background:

    • Alkaline phosphatase (AP) is an enzyme with various physiological roles.
    • AP activity has been previously noted in certain skin conditions, including lymphadenosis benigna cutis.
    • The role of AP in non-Hodgkin's lymphomas (NHL) requires further elucidation.

    Purpose of the Study:

    • To investigate the presence and significance of membrane-bound alkaline phosphatase (AP) activity in B cell non-Hodgkin's lymphomas (NHL) and lymphadenosis benigna cutis (LBC).
    • To explore potential correlations between AP activity and specific B cell subtypes or differentiation stages.

    Main Methods:

    • Cryostat sections of skin from 38 cases of B cell NHL and 10 cases of LBC were analyzed.
    • Histochemical staining was performed to detect membrane-bound alkaline phosphatase (AP) activity.

    Main Results:

    • Membrane-bound AP activity was detected in 8 out of 28 (28.6%) low-grade B cell NHL cases.
    • AP activity was also observed in 2 out of 10 (20%) LBC cases, consistent with known findings.
    • The presence of AP activity in NHL aligns with literature suggesting a link to intermediate lymphocytic lymphoma.

    Conclusions:

    • Membrane-bound AP activity is present in a subset of low-grade B cell lymphomas and in lymphadenosis benigna cutis.
    • While AP activity is a known feature of LBC, its presence in B cell NHL warrants further investigation.
    • Additional studies are necessary to confirm if AP activity correlates with specific cell types during B lymphoid cell differentiation.

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