“…MDSC have been described widely to play an important role for immune regulation during pathological processes such as tumours, infections or transplant reactions [16,17,21,24,32,33]; recently, however, increasing evidence has emerged revealing that they also control immune adaptation to pregnancy and contribute to maternal-fetal tolerance both maternally and fetally [12][13][14][15]19,34,35]. Until now, little is known about their impact on immune regulation in neonates, and especially in preterm infants.…”