Subpopulations of human T lymphocytes. VI. Analysis of cell markers in acute lymphoblastic leukemia with special reference to Fc receptor expression on E-rosette-forming blasts. Academic Article uri icon

Overview

MeSH

  • Adult
  • Child
  • Child, Preschool
  • Female
  • Humans
  • Male
  • Prognosis
  • Receptors, Complement
  • Rosette Formation
  • T-Lymphocytes, Regulatory

MeSH Major

  • Leukemia, Lymphoid
  • Receptors, Fc
  • T-Lymphocytes

abstract

  • A variety of surface markers, terminal deoxynucleotidyl transferase (TdT) activity, morphologic appearance, and cytochemical composition were studied in a group of 16 patients (13 children, 3 adults) with acute lymphoblastic leukemia (ALL). In 9 children, no surface markers were detected on lymphoblasts (null-type ALL). Leukemic blasts of 4 children formed E-rosettes. These E-rosette-forming blasts from 3 adult patients with ALL, were studied for the presence of Fc receptors. Of the leukemic blasts from these 7 patients, 2--76% expressed receptors for IgG Fc. Only 3 of 7 patients showed 9--42% receptors for IgM Fc. In addition, complement receptors were investigated in 6 of those 7 patients with T-cell ALL. Complement receptors were detected on 9--70% of the E rosette forming blasts from all 6 patients. TdT activity was elevated in T-cell ALL and in children with null-type ALL. The heterogeneity of Fc receptor expression on leukemic blasts in these patients demonstrates a malignant proliferation of T cells in different stages of differentiation or maturation. This observation might be helpful in subclassifying T-cell leukemias with regard to prognosis and the response to therapy.

publication date

  • July 1, 1980

has subject area

  • Adult
  • Child
  • Child, Preschool
  • Female
  • Humans
  • Leukemia, Lymphoid
  • Male
  • Prognosis
  • Receptors, Complement
  • Receptors, Fc
  • Rosette Formation
  • T-Lymphocytes
  • T-Lymphocytes, Regulatory

Research

keywords

  • Journal Article

Identity

Language

  • eng

PubMed ID

  • 6446375

Additional Document Info

start page

  • 45

end page

  • 49

volume

  • 46

number

  • 1