Background: Dysfunction of the skin barrier is regarded as a key event in the initiation and progression of inflammatory skin diseases. In many cases of allergic contact dermatitis (ACD), epidermal-resident memory CD8 T (T) cells play a central role in the immune response to contact allergens. However, if and how allergen-specific CD8 T cells affect the expression of skin barrier molecules is not known.
View Article and Find Full Text PDFBackground: Allergic contact dermatitis (ACD) is an inflammatory disease with a complex pathophysiology in which epidermal-resident memory CD8 T (T ) cells play a key role. The mechanisms involved in the activation of CD8 T cells during allergic flare-up responses are not understood.
Methods: The expression of CD100 and its ligand Plexin B2 on CD8 T cells and keratinocytes before and after allergen exposure was determined by flow cytometry and RT-qPCR.
Background: The junctional adhesion molecule-like protein (JAML) plays important roles in wound healing and activation of epidermal γδ T cells in mice. Whether JAML plays a role in contact hypersensitivity (CHS), the animal model of allergic contact dermatitis (ACD), is not known.
Methods: To examine the role of JAML in CHS, we used various mouse models of CHS in JAML knockout (KO) and wild-type (WT) mice.