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The total protein content of NF-kappaB subunit ( P65 ) in MNC lysates also showed a decrease following hydrocortisone injection .
 NF-kappaB subunit, P65, NF-kappaB, MNC
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:
 NF-kappaB subunit, P65, NF-kappaB, MNC