IMMUNOLOGY

HYPERSENSITIVITY

CLASSICAL ALTERNATE AND LECTIN PATHWAYS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of epithelial cells produce innate cytokines that affect DCs and induce allergen-specific TH2 cells, which trigger B cell isotope switch to IgE?
A
skin epithelial cells
B
intestinal epithelial cells
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Th2 cells and/or their secreted effector molecules mediate the immune response to allergens and are triggered by exposure to specific allergens leading to allergic asthma.

Detailed explanation-2: -Dendritic cells are key initiators and master regulators of the allergen-specific immune response by processing and presenting antigens to Tconv and secreting cytokines that control T cell differentiation to a certain effector type.

Detailed explanation-3: -Basophils and mast cells Mast cells are located in tissues, mainly in mucosa, and their granules contain heparin, serotonin, and histamine. They may also release a variety of cytokines that enhance the inflammatory process, especially during the early events. These cells are involved in allergic and viral processes.

There is 1 question to complete.