4875
Our results suggest that the TNF - alpha - induced secretion of CXCL8 in A549 cells is regulated by the release of ACh , the latter ' s binding to the M3R and the downstream activation of NF - kappa B and the ERK1 / 2 and p38 MAPK signaling pathways .
 Chemical: ACh
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: ACh