Which of these is CD marker of cytotoxic cells?: (A) CD8, (B) CD4, (C) CD1a, (D) CD1
Answer is A. Ans. (a) CD8(Ref: Robbins 9th/pg 191; 8th/pg 186)CD8Is a marker for cytotoxic T cellsActs as a co-receptor for TCRBinds to HLA-I to cause cytotoxic effect on virus infected and tumor cells