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Cell membrane markers and phytohemagglutinin reactivity of circulating lymphocytes from chronic myelocytic leukemia patients
Author(s) -
Rambotti P.,
Liberati A. M.,
Velardi A.,
Ballatori E.,
Martelli M. F.,
Grignani F.,
Davis S.
Publication year - 1982
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19820215)49:4<708::aid-cncr2820490419>3.0.co;2-a
Subject(s) - clone (java method) , surface immunoglobulin , antibody , medicine , immunology , rosette (schizont appearance) , myeloid leukemia , stimulation , myelocytic leukemia , lymphocyte , rosette formation , leukemia , cell , staining , microbiology and biotechnology , b cell , biology , pathology , biochemistry , dna
Lymphocytes from 22 patients with chronic myeloid leukemia (CML), 13 treated with polychemotherapy, eight by monochemotherapy, and one untreated, were analyzed for the presence of classic T and B cell surface markers (E‐rosette, EAC‐rosette, surface immunoglobulins) and for their ability to respond to phytohemagglutinin (PHA). The absolute number and percentage of E‐rosetting cells (T‐cells), EAC‐rosetting cells and cells staining for surface immunoglobulins (B cells) were all significantly lower than controls ( P ⩽ 0.025). The response to PHA was also significantly lower in patients than in controls at the smaller concentrations of the mitogen (3.75 μg/ml, 30 μg/ml) tested ( P ⩽ 0.01); at a higher PHA concentration (120 μg/ml) the decrease in PHA stimulation approached significance ( P = 0.07). These lymphocyte abnormalities support the concept that CML lymphocytes may be derived from the leukemic clone.