1. Does it involve antibodies
2. What happens in it?
3. Do pathological effects take place earlier or later than Type !-III? how much? why?
1. no, not at all
2. T cells directly recognize foreign antigen and cause inflammation and tissure injury
3. later; referred to as delayed (may take up to 24 hours); antigen-specific T cells haveing to increase in numbers
1. Highly reactive chemicals that come in contact with the skin can do what?
1. modify self proteins resulting in a CD4 or CD8 T cells response
learn this graph
Atopic Dermatitis = type 1 hypersensitivity
Allergic Contact Dermatitis = type IV hypersensitivity
and then look at the delayed type hypersensitivity thing (on this slide)