In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

[Q]:  Inhibition of CD28 / CD3 - mediated costimulation of naive and memory human T lymphocytes by intracellular incorporation of polyclonal antibodies specific for the activator protein - 1 transcriptional complex .
[A]: polyclonal antibodies


[Q]:  This activity is further augmented by cotransfected Smad4 .
[A]: cotransfected Smad4


[Q]:  A similar response was induced by endothelial stimulation with IL - 1beta , here used as positive control ( 195 + / - 20 cells / mm2 ) .
[A]:
IL - 1beta