8194
Although peripheral blood T cells are largely unresponsive to these cytokines without prior activation, a small subset of CD8+ T cells ( CD8+CD18bright ) is strongly activated by the combination of IL-12 and IL-2 .
 T cells, cytokines, CD8+ T cells, CD8+CD18bright, IL-2, IL-12
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, cytokines, CD8+ T cells, CD8+CD18bright, IL-2, IL-12