11834
We have previously shown that IL-6 induces activation of JAK1 and JAK2 in human B cell lines .
 JAK2, human B cell lines, JAK1, IL-6
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:
 JAK2, human B cell lines, JAK1, IL-6