Dendritic cells in allergy

Dendritic Cells-Importance in Allergy.

In this review we discuss the role of dendritic cells (DC) in the pathogenesis of allergic contact hypersensitivity (ACH) and atopic disorders, such as asthma and atopic eczema. In ACH patients, DC recognize the invasion of simple chemicals such as haptens, and trigger antigen-specific T cell responses leading to the characteristic histological and clinical changes such as spongiosis and papulo...

Dendritic Cells in Transplant Tolerance

Dendritic cells (DCs) are a heterogeneous family of professional APCs involved in priming adaptive immune responses. Donor DCs (direct pathway of allorecognition) and recipient DCs presenting processed donor major histocompatibility complex (MHC) as peptides (indirect pathway of allorecognition) participate actively in graft rejection by stimulating recipient T cell responses following organ tr...

Mucosal dendritic cells in immune homeostasis and upper airway allergy

The role of dendritic cells in food allergy.

In recent years, our understanding of the initiation of T(H)2-type immunity has increased significantly, yet the mechanism behind the induction of T(H)2 responses and allergic sensitization to food antigens largely remains an enigma. Dendritic cells (DCs) were first described almost 4 decades ago and have since been recognized as the most important antigen-presenting cells and crucial in the in...

Plasmacytoid dendritic cells in angiolymphoid hyperplasia with eosinophilia

Background: Angiolymphoid hyperplasia with eosinophilia (ALHE) is characterized by irregularly-shaped blood vessels with an inflammatory infiltrate. While absent from normal skin, plasmacytoid dendritic cells (pDCs) infiltrate the skin upon injury and during several infectious, inflammatory, and neoplastic entities. In addition to providing anti-viral resistance, pDCs link the innate and adapti...