Figure 2. HB-EGF was also expressed by TCR activated human CD4 T cells.

(A) Purified CD4 T cells were incubated with medium alone or anti-CD3/CD28 beads. At 4 hours, the mRNA levels of EGF family members were measured by RT-PCR. * Indicates undetectable values. (B) The kinetics of HB-EGF mRNA expression were measured on purified CD4 T cells responding to anti-CD3/CD28 beads. All results are representative of three independent experiments.