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In the present work, we investigated the molecular events leading to NF-kappa B activation by TNF alpha in a human T cell line ( Jurkat ) and its subclone JCT6 , which presents a deficiency in the PKA transduction pathway .
 cell line: JCT6; protein: TNF alpha; protein: PKA; protein: NF-kappa B; cell line: Jurkat; cell line: human T cell line
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell line: JCT6; protein: TNF alpha; protein: PKA; protein: NF-kappa B; cell line: Jurkat; cell line: human T cell line