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Activated mononuclear cells , particularly B cells which are in a state of chronic activation in HIV infected individuals , release HIV -inductive cytokines and thus play a potentially important role in the pathogenesis of HIV infection .
 cytokines, B cells, HIV -inductive cytokines, Activated mononuclear 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:
 cytokines, B cells, HIV -inductive cytokines, Activated mononuclear cells