Single cell analysis of cytokine gene coexpression during CD4 + T-cell phenotype development

Academic Article

Abstract

  • CD4 + T cells from αβ-T-cell receptor transgenic mice were analyzed for coexpression of cytokine mRNAs during phenotype development using a double- label in situ hybridization technique. T cells that produced cytokines in the primary response were a fraction of the activated population, and only a minority of the cytokine-positive cells coexpressed two cytokines. In secondary responses, frequencies of double-positive cells increased, although they remained a minority of the total. Of the cytokine pairs examined, interleukin (IL)-4 and IL-5 were the most frequently coexpressed. IL-4 and interferon γ showed the greatest tendency toward segregation of expression, being rarely coexpressed after the primary stimulation. These data indicate that there is significant heterogeneity of cytokine gene expression by individual CD4 + T cells during early antigenic responses. Coexpression of any pairs of cytokines, much less Th1 and Th2 cytokines, is generally the exception. The Th0 phenotype is a population phenotype rather than an individual cell phenotype.
  • Digital Object Identifier (doi)

    Author List

  • Bucy RP; Karr L; Huang GQ; Li J; Carter D; Honjo K; Lemons JA; Murphy KM; Weaver CT
  • Start Page

  • 7565
  • End Page

  • 7569
  • Volume

  • 92
  • Issue

  • 16