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METHODS : Ovarian cancer SKOV3 cells were transfected with hPNAS - 4 - plasmid , and cell proliferation was evaluated by MTT assay ; apoptosis was examined by DNA ladder , Hoechst33258 staining and flow - cytometric assays .
 Anatomy: Ovarian cancer SKOV3 cells; Anatomy: plasmid; Anatomy: cell
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: Ovarian cancer SKOV3 cells; Anatomy: plasmid; Anatomy: cell