IL6 and Alzheimer disease: suggested that DC‐SIGN on DCs binds common allergens such as HDM allergen (Der p 2) and egg white allergen (Gal d2) and initiates allergen sensitization or provokes AD relapse by inducing proinflammatory cytokines including TNF and IL‐6 to facilitate Th2 and Th22 polarization.97 On the other hand, Smits et al.