MHC molecules

Question 1

Allogenic MHC molecules are presented for recognition in 2 ways:

Answer 1

direct and indirect

Question 2

Direct?

Answer 2

foreign MHC molecule with bound peptide activate self (recipient) T cell directly

Question 3

Indirect?

Answer 3

foreign MHC molecule may be processed and presented by recipient APC.

Processed foreign MHC are recognized by T cells like conventional foreign antigens