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Tumor necrosis factor alpha ( TNFalpha ) is a pluripotent activator of inflammation by inducing a proinflammatory cytokine cascade .
 proinflammatory cytokine, Tumor necrosis factor alpha, TNFalpha
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:
 proinflammatory cytokine, Tumor necrosis factor alpha, TNFalpha