12169
The triptolide -induced apoptosis is accompanied by increase of DEVD-cleavable caspases activity and degradation of caspase substrate poly (ADP-ribose) polymerase ( PARP ).
 PARP, caspases, caspase substrate poly (ADP-ribose) polymerase
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:
 PARP, caspases, caspase substrate poly (ADP-ribose) polymerase