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Contrary to the results in Jurkat cells , PDTC did not inhibit tumor necrosis factor-alpha -induced NF kappaB activation in astrocytes ; instead PDTC itself induces NF kappaB activation in astrocytes , and this may be related to scavenging of endogenously produced NO by the PDTC iron complex .
 astrocytes, astrocytes, Jurkat cells, NF kappaB, tumor necrosis factor-alpha, NF kappaB
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:
 astrocytes, astrocytes, Jurkat cells, NF kappaB, tumor necrosis factor-alpha, NF kappaB