13363
Our analyses of the induction of nuclear factor-kappaB ( NFkappaB ) in activated memory (CD45RO+) and naive (CD45RA+) T cell subsets from young and elderly donors has demonstrated that, regardless of donor age, memory T cells are not significantly altered in their responsiveness to TNF-alpha -mediated induction of NFkappaB .
 NFkappaB, nuclear factor-kappaB, TNF-alpha, NFkappaB, memory T cells
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:
 NFkappaB, nuclear factor-kappaB, TNF-alpha, NFkappaB, memory T cells