Question

Do B cells use MHC markers? Or do they already know each type of antigen?

Answer 1

Every cell in our bodies has a specific marker on its membrane, called MHC, that serves as an ID marker that it belongs in our bodies. MHCs of Class I are on every cell, while MHCs of Class II are only on APCs and lymphocytes.

You see, if a T cell is running around and encounters MHC Class I on every cell it bumps into, it recognizes every cell as belonging in the body, and no immune response will occur. However, if a T cell runs into a cell that doesn't display an MHC, the T cell will immediately know that that cell doesn't belong in our bodies; the cell-mediated immune response will then begin, and the foreign cell will be destroyed.

MHC stands for major histocompatibility complex. MHC is a complex of protein that projects from the cell membrane into the world. You know that membrane is made up of both lipid and protein

Answer 2

Thanks, but do the B cells use MHC markers? Or only the T cells?