MHC-II positive cells | Crack PGIMER 22 MAY 2016

MHC-II positive cells are all except

A. B cells 
B. T cells 
C. macrophages 
D. Platelets 
E. RBCs

The Answer is. (D) Platelets; (E) RBCs— T. cells (activated)

MHC is only on antigen-presenting cellssuch as dendritic cells, mononuclear phagocytes, some endothelial cells, thymic epithelial cells, and B cells

- B cells

- Macrophage 

- Dendritic cells

- Langarhan cells of skin

- Thymic epithelial cells

  ü  These cells are involved in immune response   

  ü  MHC-I positive cells are all the nucleated cells and platelets. They are involved in allogenic graft rejection.