14409
The immunosuppressants ciclosporin and FK506 block the Ca(2+)-dependent signal-transduction pathway emanating from the T-cell receptor , thereby inhibiting the activation of helper T cells .
 T cells, T-cell receptor, helper T cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 T cells, T-cell receptor, helper T cells