AQP3 and atopic eczema: Therefore, the relevance of human aquaporins found in other tissues, such as AQP3 in the skin, can be considered as potential autoantigens and, through molecular mimicry, triggers relevant skin diseases such as atopic dermatitis.26 Evidence indicates cross-reactivity with aquaporins expressed by bacteria and mycobacteria, includingEscherichia coli and Mycobacterium species, in relation to this specific autoantigen.27 This indicated that antibodies targeting aquaporins fromA. fumigatus could potentially recognize and target this autoantigen.