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Lipopolysaccharide ( LPS ) induces expression of inflammatory cytokines in monocytes/macrophages via CD14 , one of the LPS receptors , which is expressed predominantly in these cells.
 LPS receptors, inflammatory cytokines, CD14, monocytes/macrophages
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:
 LPS receptors, inflammatory cytokines, CD14, monocytes/macrophages