Immunoglobulin synthesis and secretion by leukemic B cells from patients with chronic lymphocytic leukemia Journal Article

  


Authors: Kunicka, J. E.; Platsoucas, C. D.
Article Title: Immunoglobulin synthesis and secretion by leukemic B cells from patients with chronic lymphocytic leukemia
Abstract: We investigated the ability of purified E-rosette negative largely leukemic B cells from 15 patients with B-cell chronic lymphocytic leukemia (CLL) to synthesize and secrete IgM, IgA and IgG spontaneously or in the presence of purified autologous or allogeneic T4 cells from normal donors, in PWM-induced differentiation system. We observed moderate but significant IgM synthesis and secretion (19.7 ± 8.9 μg/dl, n = 5) by leukemic B cells alone in 5 of 15 patients examined. These IgM concentrations were significantly higher (p < 0.005) than those produced by purified E-rosette negative cells from normal donors (4.3 ± 4.5 μmg/dl; n = 6) in the absence of T cells. Purified E-rosette negative leukemic B cells alone from patients with CLL did not produce IgA or IgG. Addition of purified autologous or allogeneic T4 cells from normal donors resulted in significant increase of IgM production by leukemic B cells from certain patients or initiated IgM secretion in others. However, these IgM levels (73.9 ± 56.6 μg/dl) were significantly lower (p < 0.003) to those produced by mixtures of T4 cells and B cells form normal donors (211.6 ± 58.0 μg/dl, n = 6). Addition of purified autologous or allogeneic T4 cells from normal donors to purified largely leukemic B cells from patients with CLL resulted in production of very small amounts of IgA in 4 of 15 patients (10.6 ± 6.3 μg/dl vs 154.7 ± 35.8 μg/dl produced by T4 and B cells from normal donors; n = 6), but did not support IgG synthesis and secretion. Purified T4 cells from certain patients with CLL exhibit defective helper function to immunoglobulin production by E-rosette negative cells from normal donors. © 1986.
Keywords: clinical article; human cell; cells, cultured; cell differentiation; b-lymphocytes; lymphatic system; immunoglobulin g; t-lymphocytes, helper-inducer; chronic lymphatic leukemia; helper cell; antigens, surface; immunoglobulins; immunoglobulin m; immunoglobulin a; chronic lymphocytic leukemia; antigens, differentiation, t-lymphocyte; leukemia, lymphocytic; human; priority journal; support, non-u.s. gov't; support, u.s. gov't, p.h.s.; immunoglobulin production; pokeweed mitogens; antibody-producing cells; blood and hemopoietic system; immunoglobulin synthesis and secretion; leukemic b cells
Journal Title: Leukemia Research
Volume: 10
Issue: 9
ISSN: 0145-2126
Publisher: Elsevier Ltd  
Date Published: 1986-01-01
Start Page: 1101
End Page: 1107
Language: English
DOI: 10.1016/0145-2126(86)90055-x
PUBMED: 2945055
PROVIDER: scopus
DOI/URL:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0022470598&doi=10.1016%2f0145-2126%2886%2990055-X&partnerID=40&md5=7e05e0137dae90da9bd7b34b5a915040
Notes: Article -- Export Date: 18 August 2021 -- Source: Scopus
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MSK Authors
  1. Jolanta E. Kunicka
    17 Kunicka
  2. Chris Platsoucas
    17 Platsoucas
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