13364
Although treatment with TNF-alpha induced nuclear localization of NFkappaB in both memory and naive T cell subsets , irrespective of the age of the donor, the levels of induced NFkappaB were significantly lower in both subsets of T cells obtained from the elderly, when compared to those in young.
 TNF-alpha, NFkappaB, T cells, NFkappaB
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, NFkappaB, T cells, NFkappaB