STX2 and hemolytic-uremic syndrome: Taking into account the importance of the inflammatory microenvironment in HUS, in this work we analyzed the secretion of selected pro-inflammatory mediators released by HGEC/HK-2 co-cultures and HGEC and HK-2 monocultures, at basal conditions and after treatment with Stx2, SubAB or with both toxins together (Stx2 + SubAB).