4358
Protein kinase C ( PKC ) depletion generated by a long-term phorbol 12 myristate 13-acetate treatment had weak effects on proliferation.
 Protein kinase C, PKC
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:
 Protein kinase C, PKC