Drexler HG, Menon M, Gaedicke G, Minowada J. Expression of FMC7 antigen and tartrate-resistant acid phosphatase isoenzyme in cases of B-lymphoproliferative diseases.
EUROPEAN JOURNAL OF CANCER & CLINICAL ONCOLOGY 1987;
23:61-8. [PMID:
3297713 DOI:
10.1016/0277-5379(87)90420-2]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A panel of different B-cell malignancies representing various stages of B-cell differentiation were analyzed for the expression of an antigen labeled by the monoclonal antibody FMC7 and of tartrate-resistant acid phosphatase (TracP) activity. The FMC7 antigen and TracP were not found on early immature pre B-cell proliferations, appeared at early and intermediate B-cell stages, reached their peak of expression in terms of both incidence of positivity and staining intensity at the late B cell stage (as represented by hairy cell leukemia) and were lost at the B-cell/plasma cell transition. Although detected at similar stages of B-cell differentiation, FMC7 and TracP appear to be independently expressed and were not related to a particular Ig class. The simultaneous detection of FMC7 and TracP represents a distinguishing parameter for the identification of hairy cell leukemia.
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