13042
Our results suggest that reduced IL-2 production by neonatal T cells is specific for anti-CD3 and anti-CD3 + anti-CD28 -mediated stimulation and that these activators cannot effectively activate the ROI -NF-kappa B signalling pathway in neonatal T cells .
 anti-CD28, anti-CD3, neonatal T cells, anti-CD3, neonatal T cells, IL-2, -NF-kappa B
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:
 anti-CD28, anti-CD3, neonatal T cells, anti-CD3, neonatal T cells, IL-2, -NF-kappa B