Which cells would be ignored in most instances by lymphocytes?
A)cells coated with complement proteins
B)cells with antigens on their surface
C)"self" cells with MHC markers
D)cells with both antigen and self-MHC markers
E)cells with damaged or mutant self-MHC markers

Question

Quizplus · Accepted Answer

Lymphocytes are capable of recognizing and responding to cells with foreign or abnormal antigens, but they are also programmed to ignore "self" cells that display normal MHC markers. This is important for preventing autoimmune reactions, in which the immune system mistakenly attacks the body's own cells. Cells coated with complement proteins (A) and cells with antigens on their surface (B) are more likely to be targeted by lymphocytes, whereas cells with both antigen and self-MHC markers (D) may actually be recognized as foreign and attacked by the immune system. Cells with damaged or mutant self-MHC markers (E) may also be targeted by lymphocytes, as they may not be recognized as "self."

Which Cells Would Be Ignored in Most Instances by Lymphocytes