CREDIT: UT SOUTHWESTERN DALLAS – March 21, 2019 – UT Southwestern researchers have identified two proteins that act as gatekeepers to dampen a potentially life-threatening immune response to chronic infection. IMAGE: DR. ZIXU LIU view more CREDIT: UT SOUTHWESTERN The proteins – the transcription factors SIX1 and SIX2 – activate cellular pathways required for fetal development and later switch to...