12599
The anaphylatoxins C5a and C3a are involved in the regulation of cytokine production.
 C3a, anaphylatoxins, C5a
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:
 C3a, anaphylatoxins, C5a