5878
In this study, we demonstrate that stress-activated protein kinases ( SAPK ) are activated after CD40 cross-linking on various B cell lines or human tonsillar B cells .
 stress-activated protein kinases, B cell lines, B cells, SAPK, CD40, human tonsillar B 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:
 stress-activated protein kinases, B cell lines, B cells, SAPK, CD40, human tonsillar B cells