CCL27 and Alzheimer disease: Although ILC numbers are increased in both AD and psoriasis, GATA3+ ILC2s and AHR+ ILC3s are found mainly in AD lesions, while ILC1s and ILC3s are more visible in psoriatic lesions, highlighting a level of selectivity and specificity of ILCs in inflammatory skin conditions, similar to the classical Th subtypes [35].