7170
As2O3 induced PML ( promyelocytic leukemia ) protein degradation but did not modulate expression of cell cycle-related proteins , including c-myc , retinoblastoma protein , cyclin-dependent kinase 4 , cyclin D1 , and p53 , or expression of differentiation-related antigens .
 differentiation-related antigens, c-myc, p53, cyclin-dependent kinase 4, cyclin D1, retinoblastoma protein, cell cycle-related proteins
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:
 differentiation-related antigens, c-myc, p53, cyclin-dependent kinase 4, cyclin D1, retinoblastoma protein, cell cycle-related proteins