13439
Stimulation of resting human T cells with the CD28 -specific mAb BW 828 induces proliferation and cytokine synthesis without further requirement for TCR coengagement .
 CD28, CD28 -specific mAb BW 828, resting human T cells, TCR, cytokine
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:
 CD28, CD28 -specific mAb BW 828, resting human T cells, TCR, cytokine