7759
These findings support a pathway by which LPS stimulation of neutrophils results in activation of MKK3 , which in turn activates p38alpha MAPk , ultimately regulating adhesion, NF-kappaB activation , enhanced gene expression of TNF-alpha , and regulation of TNF-alpha synthesis .
 TNF-alpha, MKK3, NF-kappaB, p38alpha MAPk, neutrophils, p38alpha, TNF-alpha
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:
 TNF-alpha, MKK3, NF-kappaB, p38alpha MAPk, neutrophils, p38alpha, TNF-alpha