8195
In this report we show that the functional synergy between IL-12 and IL-2 in CD8+CD18bright T cells correlates with the activation of the stress kinases , p38 mitogen-activated protein (MAP) kinase and stress-activated protein kinase (SAPK)/Jun N-terminal kinase , but not with the activation of the extracellular signal-regulated kinases .
 p38 mitogen-activated protein (MAP) kinase, IL-2, CD8+CD18bright T cells, stress kinases, stress-activated protein kinase (SAPK)/Jun N-terminal kinase, extracellular signal-regulated kinases, 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:
 p38 mitogen-activated protein (MAP) kinase, IL-2, CD8+CD18bright T cells, stress kinases, stress-activated protein kinase (SAPK)/Jun N-terminal kinase, extracellular signal-regulated kinases, IL-12