4859
Treatment of HIV-1 -infected promonocytic U1 cells with r-h-TBP-1 or rhu TNFR:Fc reduced PMA -induced HIV-1 p24 antigen production in a concentration-dependent manner, with a maximal inhibition of approximately 90%.
 r-h-TBP-1, HIV-1 p24 antigen, HIV-1 -infected promonocytic U1 cells, rhu TNFR:Fc
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:
 r-h-TBP-1, HIV-1 p24 antigen, HIV-1 -infected promonocytic U1 cells, rhu TNFR:Fc