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The CHO-DR/ B7 / LFA-3 triple transfectant induced a further increase in AP-1 and NF-kappa B binding proteins compared with the double transfectants .
 CHO-DR/ B7 / LFA-3 triple transfectant, double transfectants, LFA-3, B7, binding proteins, AP-1, NF-kappa B
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:
 CHO-DR/ B7 / LFA-3 triple transfectant, double transfectants, LFA-3, B7, binding proteins, AP-1, NF-kappa B