Increased expression of the homodimeric S100A8 (A8) and S100A9 (A9) alarmins and their Calprotectin (CP) antimicrobial hetero-complex has been reported in Inflammatory Skin Diseases (ISDs) such as Atopic Dermatitis (AD), but the functional consequences of this increase are not known. This evidence concerns the gene S100A8 and atopic eczema.