Costimulator dependence of lymphokine secretion by naive and activated CD4+ T lymphocytes from TCR transgenic mice.

Journal Article (Journal Article)

The role of costimulation in Ag-induced responses of naive and differentiated IL-2 and IL-4-producing CD4+ T cells has been examined using cells from mice expressing a transgenic TCR specific for cytochrome c (81-104) + I-Ek. IL-2 secretion by naive and pre-activated T cells is dependent on costimulation, because it is not induced with chemically fixed APCs and is significantly inhibited by the B7 antagonist, CTLA4-Ig. In contrast, IL-4 secretion by in vitro differentiated Th2-like cells is relatively independent of costimulators. Thus, the requirement for costimulation is related more to lymphokine secretion profiles than to the previous activation status of CD4+ T lymphocytes.

Full Text

Duke Authors

Cited Authors

  • McKnight, AJ; Perez, VL; Shea, CM; Gray, GS; Abbas, AK

Published Date

  • June 1, 1994

Published In

Volume / Issue

  • 152 / 11

Start / End Page

  • 5220 - 5225

PubMed ID

  • 7514632

International Standard Serial Number (ISSN)

  • 0022-1767


  • eng

Conference Location

  • United States