12869
However, in contrast to the wild-type endotoxin, it failed to induce significant production of tumor necrosis factor-alpha and macrophage inflammatory protein-1alpha by monocytes and did not induce the phosphorylation and nuclear translocation of mitogen-activated protein kinase .
 monocytes, mitogen-activated protein kinase, tumor necrosis factor-alpha, macrophage inflammatory protein-1alpha
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:
 monocytes, mitogen-activated protein kinase, tumor necrosis factor-alpha, macrophage inflammatory protein-1alpha