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American Journal of Pathology, Vol 129, 54-63, Copyright © 1987 by American Society for Investigative Pathology

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Immunophenotyping of non-Hodgkin's lymphomas using a panel of antibodies on paraffin-embedded tissues [published erratum appears in Am J Pathol 1988 Jan;130(1):9]

FR Davey, KC Gatter, E Ralfkiaer, KA Pulford, GW Krissansen and DY Mason
SUNY Health Science Center at Syracuse 13210.

The use of monoclonal and polyclonal antibodies for the immunophenotyping of non-Hodgkin's lymphomas in paraffin-embedded tissue has been limited by the fact that most antigens on lymphoid cells are denatured by histologic fixation, dehydration, and embedment. In this article the authors have analyzed a small panel of antibodies which represent exceptions to this rule, in that they identify denaturation-resistant determinants on leukocyte antigens in paraffin- embedded tissue. Monoclonal antibodies L26 [corrected] and 4KB5 label preferentially B cells, monoclonal antibody UCHL1 stains predominantly T cells, and monoclonal antibody MAC 387 reacts with granulocytes and some macrophages. A polyclonal antiserum raised against purified CD3 (T3) antigen, a T-cell-specific molecule, was also employed. This antibody panel was used to immunophenotype routinely processed tissue biopsy specimens from 61 non-Hodgkin's lymphomas (all of which had been previously phenotyped in cryostat sections). The lineage of the neoplastic cells was correctly identified in 32 of 34 (94%) cases of B- cell lymphoma, in 19 of 19 (100%) cases of T-cell neoplasm, and in 2 of 4 (50%) cases of histiocytic malignancy. It is concluded that this combination of antibodies is helpful in immunophenotyping non-Hodgkin's lymphomas when only paraffin-embedded tissue sections are available, although additional reagents of higher specificity are required to improve the identification of lymphomas.

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