12171
Furthermore, enforced expression of Bcl-2 inhibited triptolide -induced degradation of PARP and apoptosis .
 Bcl-2, PARP
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:
 Bcl-2, PARP