12870
These results suggest that 1) lipid A myristoyl fatty acid , although it is important for the induction of inflammatory cytokine production by human monocytes , is not necessary for the induction of Mn SOD , 2) endotoxin -mediated induction of Mn SOD and inflammatory cytokines are regulated, at least in part, through different signal transduction pathways , and 3) failure of the mutant endotoxin to induce tumor necrosis factor-alpha production is, at least in part, due to its inability to activate mitogen-activated protein kinase .
 human monocytes, cytokines, mutant endotoxin, endotoxin, tumor necrosis factor-alpha, mitogen-activated protein kinase, Mn SOD, Mn SOD, inflammatory cytokine
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:
 human monocytes, cytokines, mutant endotoxin, endotoxin, tumor necrosis factor-alpha, mitogen-activated protein kinase, Mn SOD, Mn SOD, inflammatory cytokine