1732
Stimulation of T-cells by agonistic anti- CD28 antibodies in conjunction with phorbol 12-myristate 13-acetate ( PMA )- or TcR -derived signals induces the enhanced activation of the transcription factor NF-kappa B .
 CD28, NF-kappa B, anti- CD28 antibodies, TcR, T-cells, transcription factor
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:
 CD28, NF-kappa B, anti- CD28 antibodies, TcR, T-cells, transcription factor