10048
Our results support an important role for autocrine TNF-alpha secretion in controlling HIV replication in primary T cells because of its ability to maintain NF-kappa B elevated in the nucleus of T cells .
 primary T cells, TNF-alpha, NF-kappa B, 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:
 primary T cells, TNF-alpha, NF-kappa B, T cells