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Related Experiment Videos

Immunologic heterogeneity of diffuse large cell lymphoma.

A S Freedman, A W Boyd, K C Anderson

    Blood
    |March 1, 1985
    PubMed
    Summary

    This study identified the cellular origins of diffuse large-cell lymphomas (DLCLs). Most DLCLs (82%) originated from B cells, with fewer from T cells (16%) or monocytes (2%).

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    Leukemia·2016

    Area of Science:

    • Immunology
    • Hematology
    • Oncology

    Background:

    • Diffuse large-cell lymphomas (DLCLs) are aggressive non-Hodgkin lymphomas.
    • Understanding the cellular lineage of DLCLs is crucial for diagnosis and treatment.
    • Previous studies have suggested diverse origins for DLCLs.

    Purpose of the Study:

    • To determine the cellular lineage of a cohort of 57 diffuse large-cell lymphomas (DLCLs).
    • To identify distinct immunophenotypic subgroups within DLCLs.
    • To correlate DLCL phenotypes with normal B cell differentiation stages.

    Main Methods:

    • Utilized a panel of monoclonal antibodies against T, B, and monocyte antigens.
    • Immunophenotyping was performed on 57 DLCL samples.
    • Flow cytometry and immunohistochemistry were employed to analyze antigen expression.

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    Main Results:

    • 82% of DLCLs were of B cell lineage (B1+, sig+).
    • 16% were of T cell lineage, and 2% were of monocyte-myeloid lineage.
    • Four immunophenotypic subgroups of B-cell DLCLs were identified based on B1, B4, sIg, and B2 antigen expression.

    Conclusions:

    • The majority of DLCLs originate from B lymphocytes.
    • DLCLs represent neoplastic counterparts of normal B cells in mid-differentiation stages.
    • Specific B cell antigen profiles can distinguish DLCL subgroups, aiding in understanding their origin.