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Finally, it was observed that the rate of decay of vimentin mRNA upon actinomycin D administration was decreased in heat- and cadmium- pretreated cells in comparison to untreated cells .
 vimentin mRNA, vimentin, untreated cells
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:
 vimentin mRNA, vimentin, untreated cells