Multistage regulation of Th1-type immune responses by the transcription factor IRF-1.


Eradication of a given pathogen is dependent on the selective differentiation of T helper (Th) cells into Th1 or Th2 types. We show here that T cells from mice lacking the transcription factor IRF-1 fail to mount Th1 responses and instead exclusively undergo Th2 differentiation in vitro. Compromised Th1 differentiation is found to be associated with defects… (More)


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