Which of the following is required for T-cell activation?
A. Antigen-specific TCR binding to MHC peptide
B. Expression of CD4+ or CD8+
C. Interaction with CD80, CD86, or ICOS-L
D. Both A and B
E. Both A and C
Answer: E
Which of the following is required for T-cell activation?
A. Antigen-specific TCR binding to MHC peptide
B. Expression of CD4+ or CD8+
C. Interaction with CD80, CD86, or ICOS-L
D. Both A and B
E. Both A and C
Answer: E