Thus, these cells together secrete abundant chemokines, antimicrobial peptides, and cytokines, such as thymic stromal lymphopoietin (TSLP), interleukin- (IL-) 25, IL-33 that drives the infiltration of both innate immune cells (e.g., ILCs and mast cells), and T cells in AD lesional skin [15]. Here, TSLP is linked to Alzheimer disease.