7471
Treatment with E2 or Prog increased survival and prevented apoptosis induced by TNF-alpha in both undifferentiated and macrophage-like PMA-differentiated U937 cells , as assessed by trypan blue exclusion cell counting , thymidine incorporation , AnnexinV labeling , followed by flow cytometry and DNA fragmentation studies .
 protein: TNF-alpha; cell line: PMA-differentiated U937 cells
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: TNF-alpha, PMA-differentiated U937 cells 
Answer:
 protein: TNF-alpha; cell line: PMA-differentiated U937 cells