3557
Zymosan induces NADPH oxidase activation in human neutrophils by inducing the phosphorylation of p47phox and the activation of Rac2 : involvement of protein tyrosine kinases , PI3Kinase , PKC , ERK1 / 2 and p38MAPkinase .
 NADPH, tyrosine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 NADPH, tyrosine