K Saadia has experience in Immunotoxicology in the field of Skin Allergy. She has been working for many years in the activation of dendritic cells by allergenic molecules. She demonstrated that haptens can be real danger signals. She has worked on the identification of new signaling pathways in immunity cells in response to haptens. Currently, she is working on the transcription factor Nrf2 and its link in the inflammatory response of skin allergic origin.